S-716

S-716 Lever Action Grease Gun

//Medium Duty - Wide Barrel
Cartridge Size450 g (Wide) Bulk Capacity20 oz. (650 cc) Pressure6,000 PSI HeadAluminium Die Cast

The STAR S-716 Lever Action Grease Gun – Medium Duty Wide Barrel delivers dependable general-lubrication performance for compact tractors, light construction equipment, trailers, automotive chassis, and everyday farm and workshop service. A wide 63.5 mm (2-1/2") barrel takes the 450 g wide-barrel cartridge (the Australian and New Zealand stocked format), bulk capacity is 650 cubic centimetres (20 oz.), and the pressure rating is 6,000 PSI (413 bar). Sized to cover a typical compact tractor plus trailer service on a single bulk fill.

We at STAR built the S-716 with a CNC-machined aluminium die cast head, a robust 1.2 mm cold-drawn steel barrel, an air bleeder valve for fast priming, and 4-way loading (cartridge, bulk, suction, filler pump). Four-way loading is a real flexibility advantage at the medium-duty tier: load a 450 g cartridge for clean workshop service, bulk-pack from a 15 kg pail for seasonal equipment prep, suction-fill from an open container on remote paddock service, or use a filler pump for rapid reload in a busy workshop. The same gun handles all four formats without conversion kits or tool swaps.

Rugged Build Quality

  • Wide 63.5 mm (2-1/2") barrel sized for 450 g cartridges. The barrel's inner diameter matches the Australian and New Zealand wide-barrel cartridge standard. Stocked cartridges from grease suppliers across Sydney, Melbourne, Perth, Brisbane, Auckland, Christchurch, and regional rural merchants drop straight in without adapters. For distributors supplying either market, the S-716 is the medium-duty wide-barrel product SKU that matches the cartridge supply chain Australian and NZ buyers already stock.
  • 6,000 PSI (413 bar) medium-duty pressure rating. Sufficient for general lubrication on the majority of equipment a small-scale operator services: compact tractors, light construction equipment, automotive chassis, trailers, ATVs, small workshop machinery, and pre-season farm equipment prep. Pressure is the tier that separates the medium-duty S-716 from the heavy-duty 12,000 PSI S-710 family: at 6,000 PSI the gun handles clean, well-maintained zerks reliably, but a zerk that has crusted from months of outdoor exposure may refuse grease and require a heavy-duty gun to clear.
  • 20 oz. (650 cc) bulk capacity. Carries approximately 590 g of grease when bulk-filled, or accepts one full 450 g cartridge with 200 cc of headroom for cartridge-only loading. Sized for typical farm-service and workshop-service routes where 40-50 fittings per service session is the norm, covering a full compact tractor or a light construction machine on one fill.
  • High-tolerance CNC-machined aluminium die cast head. The head is cast from aluminium then CNC-finished to tight tolerances. At 6,000 PSI the aluminium die cast head is the correctly-specified material: light, corrosion-resistant, dimensionally stable across the operating pressure range. The dearer forged steel head used on the 12,000 PSI S-710 would be over-specification at this pressure tier, adding weight and cost without adding durability at 6,000 PSI service.
  • Robust barrel in 0.049" (1.2 mm) cold-drawn steel. The barrel wall is drawn through a die at room temperature, which work-hardens the steel for predictable strength at 1.2 mm thickness. The same barrel wall specification as the S-710 heavy-duty wide-barrel family; the S-716 does not compromise on barrel construction at the medium-duty tier.
  • 4-way loading: 450 g cartridge, bulk pack, suction, filler pump. Grease supply format flexibility is one of the key features for the Australian and NZ buyer choosing between cartridge and bulk supply economics. Cartridges for clean reloads in the workshop, bulk packing from 5 kg or 15 kg pails for lower per-kilogram cost on multi-machine service, suction fill from open containers on remote paddock service, and filler pump fill for rapid reload at fleet workshops. The S-716 accepts all four formats without conversion kits or head swaps.
  • Extra-heavy follower spring. A stronger-than-standard compression spring sits behind the follower plate and keeps the grease column pressed firmly against the pump, maintaining positive priming pressure even at low fill levels or after long storage periods between farm-service cycles. Standard springs can lose prime at half-empty fills; the heavier spring prevents that.
  • Rolled threads on the barrel-to-head joint. Rolled threads displace steel under pressure rather than cutting it away, which work-hardens the surface for stronger, smoother engagement. Important on a joint that gets unscrewed every cartridge swap or bulk reload: rolled threads survive thousands of reload cycles without cross-threading.
  • Machined non-return valve in the head. A precision-machined one-way valve sits between the pump chamber and the coupler outlet. It opens during a pump stroke and closes between strokes to hold peak pressure, so the grease column does not bleed back. Without it, partial strokes would never build the 6,000 PSI needed to clear a typical zerk fitting.
  • Air bleeder valve on the head. A small bleeder valve lets the operator release trapped air from the pump chamber during priming, which speeds up first-use priming and recovery after cartridge swaps. Crack the valve a quarter turn, pump the lever a few times until grease flows, close the valve. The feature particularly helps first-time users and operators who service the gun infrequently.
  • Knurled barrel grip. The barrel surface has a machined cross-hatch pattern that provides tactile grip when hands are oily, gloved, or wet. No moving parts, does not wear out over the life of the gun.
  • Non-slip textured powder-coated body. Electrostatic powder coating with a textured surface finish on the head, lever, and reservoir body. Resists corrosion in humid climates common across coastal Queensland, Tasmanian aquaculture, NZ dairy sheds, and outdoor equipment storage where the gun sees moisture between uses.

Features / Loading Options

The S-716 accepts grease from all four industry-standard supply formats: 450 g cartridge, bulk pack, suction fill, and filler pump. Four-way loading is a key differentiator at the medium-duty tier, where many competing guns restrict to cartridge-only or cartridge-plus-bulk.

Cartridge loading S-716 medium duty wide barrel grease gun 450 g Australian NZ cartridge Cartridge Loading
450 g (Wide)
Bulk loading S-716 medium duty wide barrel grease gun 650 cc reservoir scoop fill Bulk Loading
20 oz. / 650 cc
Suction filling S-716 medium duty wide barrel grease gun open container Suction Filling
Filler pump loading S-716 medium duty wide barrel grease gun 1/8 BSPT inlet Filler Pump

How the S-716 Works

The S-716 works in three stages: load, prime, pressurise and dispense. Mechanism and workflow are the same as most lever-action grease guns; the distinctive points are the wide-barrel cartridge compatibility and the 6,000 PSI medium-duty pressure class.

  1. Load. Choose one of four loading methods depending on your grease supply. For cartridge fill, retract and lock the plunger rod, unscrew the barrel, peel the metal pull-tab off a 450 g wide-barrel cartridge (the Australian and NZ cartridge format, physically larger than the worldwide 14 oz. cartridge), insert nose-first, peel the plastic bottom seal, and screw the head back on. For bulk pack, retract and lock the plunger, unscrew the barrel, dip the barrel mouth into a 5 kg or 15 kg grease pail, and pack grease firmly against the sidewalls with a scoop to fill the 650 cc reservoir. For suction fill, retract and lock the plunger with the barrel attached, dip the gun nose into an open grease container, and release the plunger rod slowly so the follower spring draws grease into the reservoir. For filler pump fill, connect a hand-operated or pneumatic filler pump to the 1/8" BSPT inlet on the head.
  2. Prime. Release the plunger rod from the side-slot lock so the follower spring compresses the grease column against the head. Crack the air bleeder valve (or loosen the head a quarter turn if the valve is closed) to release trapped air, then pump the lever 3 to 5 full strokes with the coupler disconnected. Grease should flow cleanly through the coupler by the fourth or fifth stroke. Close the bleeder valve when grease flows without bubbles. First-time priming on a new gun or after a long storage period may take 5-8 strokes because the internal cavity is completely empty of grease.
  3. Pressurise and dispense. Connect the hydraulic coupler to a zerk fitting. Each full lever stroke drives the single pump piston and delivers grease through the non-return valve into the coupler at up to 6,000 PSI (413 bar). Pump until fresh grease appears at the bearing seal, then stop immediately to avoid over-greasing. A 650 cc fill covers roughly 50 typical fittings at 12 g each, enough for a full compact tractor, a light construction machine, or a typical workshop service session.

The S-716 runs on lever power only: no battery, no compressor, no electrical supply. The medium-duty 6,000 PSI tier is sized for general lubrication on well-maintained equipment where heavy-duty pressure would be over-specification. For outdoor-exposed heavy equipment where grease fittings routinely crust between service intervals, the 12,000 PSI S-710 is the correct choice. For a long-barrel variant of the S-716 at 900 cc (30 oz.), the S-716L is available on the same medium-duty 6,000 PSI platform.

ParameterValue
ModelS-716
TypeManual Lever Action Grease Gun - Medium Duty Wide Barrel
MechanismLever Type (Hand Operated)
DeliversApproximately 1 g / Stroke (1 oz. / 28 Strokes)
Pressure Developed6,000 PSI (413 bar / 41.3 MPa)
Filling OptionsCartridge, Bulk, Suction, Filler Pump (4-way)
Cartridge Capacity450 g Wide-Barrel Cartridge (Australian / NZ standard)
Bulk Capacity20 oz. / 650 cc (approximately 590 g)
Barrel Diameter (Ø)63.5 mm / 2-1/2" (Wide Barrel)
Barrel Wall Thickness0.049" / 1.2 mm cold-drawn steel
Head MaterialCNC-machined Aluminium Die Cast
Air Bleeder ValveYes (on head for assisted priming)
Body FinishNon-slip textured powder coating
Thread Options1/8" BSPT / 1/8" NPT / M10 x 1 / Custom
Extension / Hose Size6" (150 mm) Steel Extension / 12" (300 mm) Flexible Hose / Both
CouplerHydraulic coupler (standard), 4-jaw with ball check (optional)
Grease Grade CompatibilityNLGI 1, NLGI 2, NLGI 3 (lithium, calcium, aluminium complex, polyurea)
Operating Temperature-10°C to +80°C
Primary MarketAustralia and New Zealand (450 g wide-barrel cartridge stock)
Country of OriginIndia (Made in Ludhiana)
CertificationsISO 9001:2015, CE, RoHS compliant
HS Code8205
Warranty1 year against manufacturing defects
OEM / Private LabelAvailable (MOQ applies)

Every S-716 ships ready to use with accessories included, in one of three kit configurations.

S-716/R With Fixed Rigid Spout Medium Duty Wide Barrel Grease Gun
6" (150 mm) Steel Extension
Hydraulic Coupler
Instruction Manual
S-716/F With Flexible Spout Medium Duty Wide Barrel Grease Gun
12" (300 mm) Flexible Hose
Hydraulic Coupler
Instruction Manual
S-716/RF With Fixed & Flexible Spout Medium Duty Wide Barrel Grease Gun
6" (150 mm) Steel Extension
12" (300 mm) Flexible Hose
Hydraulic Coupler
Instruction Manual
Available Thread Options
1/8 BSPT 1/8 NPT M10 x 1 Custom Thread

Every kit can be ordered with any of the above thread options, or a custom thread to match your equipment. BSPT is the common thread standard for Australian and NZ equipment markets; specify at quote time.

R = Rigid Extension
F = Flexible Hose
RF = Fixed Rigid Extension & Flexible Hose both included

Kits are fully customisable. Additional couplers, connectors, pointed nozzles and other accessories can be included in the box on request. Contact us for custom kit configurations and Australian/NZ-market private-label packaging.

Four engineering and positioning choices define the S-716 as the Australian/NZ medium-duty wide-barrel gun, distinct from the heavy-duty S-710 family that shares the same cartridge format.

6,000 PSI Medium Duty Tier: Sized for General Lubrication 6,000 PSI is the pressure class that cleanly handles well-maintained zerk fittings on compact tractors, light construction equipment, automotive chassis, trailer king pins, ATVs, and workshop machinery. Pressure becomes a limiting factor only when fittings have crusted from months of outdoor exposure between service cycles, which is the specific scenario the heavy-duty 12,000 PSI tier is designed for. For the buyer who services equipment on a regular maintenance schedule (seasonal farm prep, monthly automotive service, pre-season trailer inspections), 6,000 PSI is adequate and the pressure-capability premium of heavy-duty guns is wasted. Paying for 12,000 PSI on a small-farm or workshop gun means paying for capability that sits unused.
Wide Barrel 450 g Cartridge Compatibility for Australian and NZ Markets The Australian and NZ grease markets stock the 450 g wide-barrel cartridge as the primary supply format, not the worldwide 14 oz. (400 g) format used in UK, Europe, North America, and the rest of the export-market world. The S-716's 63.5 mm barrel seats the 450 g cartridge directly without adapters. This is the same cartridge supply chain as the heavy-duty S-710, S-710DC, and wide-barrel dual-piston family. For distributors stocking Australian and NZ wide-barrel grease, the S-716 adds the medium-duty pressure-tier option to the catalogue without adding a separate cartridge SKU.
4-Way Loading Across the Full Medium Duty Tier Four-way loading (cartridge, bulk, suction, filler pump) is sometimes reserved for heavy-duty tier guns, with medium-duty competitors restricting to cartridge-only or cartridge-plus-bulk. The S-716 delivers full four-way loading at the medium-duty tier. Practical benefit: Australian and NZ farm operators can switch between stocked 450 g cartridges during the season and bulk-pack from 15 kg or 20 kg pails during service-intensive periods (pre-harvest equipment prep, post-season equipment storage), using the same gun without switching tools. Suction and filler-pump loading add flexibility for remote paddock service and shared-gun workshop scenarios.
Die-Cast Aluminium Head at 6,000 PSI: The Right Head for the Right Pressure At the medium-duty 6,000 PSI tier, the CNC-machined aluminium die cast head is correctly specified: light, corrosion-resistant, dimensionally stable across the pressure range, less expensive to manufacture than forged steel. The forged-steel Quadra-Cut Precision head used on the 12,000 PSI S-710 is over-specified for 6,000 PSI service and would add weight and cost without meaningful durability benefit at this pressure tier. The aluminium head is corrosion-resistant in the humid coastal Queensland and tropical-north environments where many Australian buyers operate. For drop-heavy yard environments where the gun lands on concrete repeatedly, the forged steel head has a drop-tolerance advantage; for workshop and farm service the aluminium head has no practical downside.

The S-716's combination of wide-barrel 450 g cartridge compatibility, 650 cc capacity, and 6,000 PSI medium-duty pressure targets Australian and NZ buyers servicing light-to-medium equipment on regular maintenance schedules.

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Compact and Small Tractor ServiceHobby farm tractors, small agricultural operations, horticultural equipment service
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Automotive Chassis and SuspensionCar, ute, light truck service at workshop and home garage level
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Trailer and Caravan ServiceTrailer king pins, caravan hitch grease, boat trailer wheel bearings
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Home Garage and DIY MaintenanceAustralian and NZ hobby mechanics, household equipment service
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Automotive Workshop ServiceSmall to mid-size workshop general lubrication on regularly-serviced vehicles
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Small Farm and Station ServiceStock water pumps, gates, trailer axles, light implement service
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Motorcycle and ATV MaintenanceChain lube points, swing arms, linkage grease, ATV suspension fittings
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Light Construction EquipmentSmall excavators, ride-on compactors, light rollers, compact machinery
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Marine Trailer and Boat ServiceTrailer wheel bearings, launching trolleys, winch pivots, small-craft service
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Caravan and RV Park MaintenanceOn-site caravan and RV fleet service, hitch and wheel service for touring operators
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Australian/NZ Rural Merchant TradeAgricultural merchant retail, rural supply store trade, hardware retail channel
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TAFE Automotive TrainingAustralian TAFE and NZ polytechnic training on medium-duty service tools

Buying Guide: When the S-716 is the Right Choice

The S-716 is the medium-duty wide-barrel grease gun built for Australian and New Zealand buyers servicing light-to-medium equipment on regular maintenance schedules. It is the right pick when 450 g wide-barrel cartridge compatibility matters (for AU/NZ supply chain) and 6,000 PSI is adequate for the equipment being serviced. It is not the right pick for heavy construction, mining service, or outdoor-exposed equipment where crusted fittings routinely need the 10,000+ PSI pressure tier to clear.

Pick the S-716 for home garage, hobby farm, and small workshop service

Australian and NZ home mechanics, hobby farmers, automotive DIY enthusiasts, small workshop operators servicing compact tractors, cars, utes, motorcycles, ATVs, trailers, and caravans: 6,000 PSI is adequate for well-maintained equipment on regular service schedules, the 450 g wide-barrel cartridge matches stocked supply at rural merchants and hardware retail, and the 650 cc reservoir covers a typical compact tractor or multiple smaller machines on one fill.

Pick the S-716 for trailer, caravan, and marine trailer service

Trailer king pins, caravan hitches, boat trailer wheel bearings, light marine winch service: these fittings are typically serviced on schedule before each season and the grease flow requirements are modest. The S-716 at 6,000 PSI handles the full range of standard trailer and marine trailer zerks, and the wide-barrel 450 g cartridge matches the stocked format at Australian and NZ caravan parks, marine dealers, and trailer suppliers.

Step up to the S-716L for longer service routes on multiple machines

For operators servicing multiple machines per session (farm service covering tractor + implements + trailer + utility vehicle in one round), the S-716L at 900 cc on the same medium-duty 6,000 PSI platform reduces mid-session reloads by carrying 38 percent more grease per fill. Same wide-barrel 450 g cartridge compatibility, same aluminium die cast head, same 4-way loading.

Step up to the heavy-duty S-710 or S-710DC for outdoor-exposed heavy equipment

Heavy agricultural equipment (broadacre cropping tractors and headers), civil construction machinery, mining service trucks, equipment that sits outdoors between service intervals and accumulates crusted zerks: the 6,000 PSI of the S-716 will not reliably clear crusted fittings that have dried or contaminated. Pick the S-710 at 12,000 PSI with forged-steel Quadra-Cut Precision head, or the S-710DC at 10,000 PSI with aluminium die cast head for mid-tier heavy-duty service.

Consider the S-713DP for large-service-volume wide-barrel work

For operators servicing many grease points per session (30-50 fittings per service round) who want pumping-time reduction alongside wide-barrel cartridge compatibility, the S-713DP adds the dual-piston mechanism (2.4 g per stroke versus the S-716's 1 g per stroke) and the 12,000 PSI heavy-duty pressure tier at the same 650 cc capacity on the same wide-barrel platform. Trade-off: higher price, heavier gun, over-specified pressure for typical medium-duty service.

Outside Australia and NZ: pick the standard-barrel S-706 medium-duty equivalent

The S-716 uses the 450 g wide-barrel cartridge stocked primarily in Australia and NZ. Outside these markets where the 14 oz. (400 g) standard cartridge is the stocked format, the S-706 is the medium-duty equivalent on the 57.15 mm standard barrel: same 6,000 PSI class, same CNC-machined aluminium die cast head, same 4-way loading, sized for the 14 oz. cartridge stock.

For Australian and NZ rural-merchant and retail distributor trade

The S-716 is the medium-duty tier SKU for Australian and NZ distributors servicing rural supply merchants, hardware retail, agricultural equipment retail, and marine/trailer dealerships. The wide-barrel 450 g cartridge compatibility matches stocked supply; the 6,000 PSI medium-duty tier matches the general-lubrication use case that retail-trade buyers serve. Contact the STAR export team for Australian/NZ private-label packaging, BSPT thread variants, and mixed-container consolidation to Sydney, Melbourne, Brisbane, Perth, Auckland, and regional hub ports.

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Frequently Asked Questions: S-716 Medium Duty Wide Barrel Lever Action Grease Gun

What is a medium duty lever grease gun, and how is it different from heavy duty?

A medium duty lever grease gun is rated for 6,000 PSI maximum pressure, sufficient for general lubrication on well-maintained equipment. A heavy duty gun is rated for 10,000 to 12,000 PSI and is designed for fittings that have crusted from months of outdoor exposure or that sit on equipment subjected to extreme service conditions. The practical difference is at crusted or dried zerk fittings: a 6,000 PSI gun may refuse to push fresh grease through a crusted fitting, while a 10,000+ PSI gun typically clears the crust on the first or second stroke. For regularly-serviced equipment on predictable maintenance schedules, 6,000 PSI is adequate and the heavy-duty tier adds cost without adding useful capability.

Is 6,000 PSI enough pressure for general tractor and workshop lubrication?

Yes for compact tractors, cars, utes, motorcycles, ATVs, trailers, light construction equipment, and small workshop machinery on regular service schedules. 6,000 PSI pushes fresh grease through all standard zerk fittings that are in good condition. For a hobby farm tractor serviced seasonally, a car serviced annually, a trailer serviced before each season, or a motorcycle chain and swing arm serviced monthly, the S-716 is correctly specified. For broadacre cropping tractors that sit in paddocks through winter, mining haul trucks, construction equipment in wet and dusty yards, or any equipment where fittings accumulate crust between service cycles, step up to the 12,000 PSI S-710.

Is the 6,000 PSI of the S-716 safe for bearing seals?

Yes. Bearing seals typically fail at internal grease-cavity pressures of 500 to 1,500 PSI, far below the 6,000 PSI maximum the gun can develop at a blocked fitting. Actual pressure reaching the bearing seal depends on the fitting's flow restriction; a clean zerk on a healthy bearing passes grease at low pressure. The 6,000 PSI specification is the maximum the pump can build when the coupler is blocked, not the steady-state pressure reaching the bearing. To prevent over-greasing: stop pumping the moment fresh grease appears at the bearing seal or the lever resistance increases sharply.

Can a 6,000 PSI medium duty grease gun cause a grease injection injury?

Yes. Even 6,000 PSI is more than sufficient to drive grease through intact skin. Injection injuries from medium-duty grease guns are documented in emergency medicine and are surgical emergencies requiring immediate treatment. The initial wound from injected grease looks like a tiny puncture and often does not hurt much initially; grease then migrates along tissue planes and causes chemical damage that becomes visible as swelling, colour change, and infection over 24-72 hours. Go to an emergency department immediately for any suspected injection injury, brief the staff it is a high-pressure grease injection (not a simple puncture), and do not wait for pain to develop. Untreated grease injections can progress to tissue necrosis and amputation regardless of the pressure rating of the gun.

What PPE should I wear when using a 6,000 PSI lever grease gun?

Mandatory: wraparound safety glasses (ANSI Z87.1+ impact-rated), nitrile chemical-resistant gloves, long sleeves, and closed-toe shoes at minimum. Safety rules: never point the coupler or flex hose at any body part, keep the non-lever hand behind the coupler head during pumping, inspect the hose and coupler before each use for visible damage, never test grease flow by pressing the coupler against skin or fabric. Even at the medium-duty 6,000 PSI tier, a pinhole in the hose or unseated coupler can drive grease through intact skin. The PPE requirement is the same across all pressure tiers; the PSI rating does not change what PPE is needed, only the speed at which an injection injury develops.

Can I use 14 oz. (400 g) cartridges in the S-716 wide barrel?

Not recommended. The S-716's 63.5 mm wide barrel is sized for the 450 g cartridge diameter; a 14 oz. (400 g) cartridge is physically smaller and will not seat properly, leaving the cartridge loose in the barrel and causing pumping and priming problems. Australian and NZ buyers should stock 450 g cartridges, which are widely available at rural supply stores, agricultural merchants, hardware retailers, and marine dealers. For buyers expecting to use 14 oz. (400 g) cartridges, pick the standard-barrel S-706 medium-duty equivalent, which has the 57.15 mm inner diameter correctly sized for the 14 oz. cartridge format.

Is the S-716 a good fit for compact tractors and small farm service?

Yes, and this is the primary design target. A compact tractor (common compact utility tractors across small-farm operations) typically has 25-35 grease points across chassis, steering linkages, loader pivots, and PTO fittings, serviced on a 50-hour or seasonal schedule. At 12 g per fitting the full tractor service uses 300-420 g of grease, fitting comfortably in the 650 cc S-716 reservoir with room for implement service afterwards. The 6,000 PSI tier is adequate for regularly-serviced compact tractor fittings; the 450 g cartridge matches stocked supply at every Australian and NZ rural merchant. For hobby farms running multiple small tractors or servicing larger 100+ hp tractors alongside the compact unit, the heavier-duty S-713DP with dual-piston speed is worth considering for the pumping-time reduction.

How many grease fittings can the S-716 service per 650 cc bulk fill?

At 12 grams of grease per fitting, a 650 cc bulk reservoir covers approximately 50 fittings per fill. At 15 grams per fitting on heavier-service equipment, approximately 40 fittings. In practical terms this means one full compact tractor plus trailer service, or multiple smaller machines (ATV, ride-on mower, motorcycle) in a single workshop session, or a typical boat trailer annual service with margin to spare. For home garage and hobby-farm service the 650 cc capacity is typically enough for several weeks of service before a reload is needed.

Can I use the S-716 on heavy construction or mining equipment?

Not recommended. Heavy construction equipment (wheel loaders, large excavators, motor graders) and mining haul trucks have fittings that routinely crust from extended outdoor exposure between service cycles, and the 6,000 PSI pressure of the S-716 may refuse to push fresh grease through a crusted zerk. On equipment that sits outdoors in wet, dusty, or marine conditions between service cycles, step up to the 12,000 PSI S-710 or the 10,000 PSI S-710DC. On large-fitting-count machines (mining haul trucks with 50+ fittings, large wheel loaders with 40+ fittings), the S-714DP dual-piston 900 cc gun is sized correctly. Using the S-716 on heavy equipment results in slow service on crusted fittings and frequent operator frustration.

What NLGI grade grease is right for the S-716 in the Australian climate?

NLGI 2 for standard summer and autumn service, NLGI 1 for sub-10°C winter service in Tasmania, NZ South Island, or alpine regions. Standard NLGI 2 lithium complex, calcium complex, or polyurea grease pumps cleanly through the S-716 across most of the Australian and NZ mainland climate range. In sub-5°C conditions the NLGI 2 thickens significantly and increases pumping effort; switching to NLGI 1 at the same temperature restores pumpability. For marine, coastal Queensland, and aquaculture service where water resistance matters, use calcium complex or aluminium complex greases. Never mix grease chemistries in the same gun without a full solvent flush between formulations.

How do I prime the S-716 after loading a new cartridge?

Release the plunger rod from the side-slot lock so the follower spring compresses the grease column against the head, crack the air bleeder valve a quarter turn to release trapped air, then pump the lever 3 to 5 strokes with the coupler disconnected. Close the bleeder valve when grease flows cleanly without air bubbles. First-time priming on a new gun or after a long storage period may take 5-8 strokes because the internal pump cavity is completely empty of grease. If priming fails after 8 strokes: check that the plunger rod is fully released and the follower spring is compressing the grease column, inspect the cartridge seating for air voids, and in cold weather allow the grease to warm to ambient for 5-10 minutes before priming.

Why won't my S-716 pump grease after a cartridge change?

Air entered the pump cavity during the cartridge change as the head was unscrewed and the grease column exposed to atmosphere. The pump is air-locked and needs re-priming before it will dispense. Fix: crack the air bleeder valve a quarter turn (or loosen the head a quarter turn if the bleeder is closed), pump the lever 5-8 strokes with the coupler disconnected and pointing at a rag or drop pad, wait for grease to flow cleanly from the bleeder or head seam, then close the bleeder. If the pump still refuses to prime after 8-10 strokes: check the plunger rod is released from the side lock (the follower spring needs to compress the grease against the head), and inspect the bulk grease or cartridge for air voids that may need to be pressed out before priming.

Can I rebuild the S-716 if components wear out over time?

Yes. The S-716 is built as a serviceable tool with replaceable seals, O-rings, follower spring, plunger-rod seal, coupler, flexible hose, and steel extension. Rebuild kits containing the standard wear parts are listed in the STAR spare parts catalogue. Typical wear-part lifespan at regular hobby farm or workshop use: O-rings and plunger seal 3-5 years, follower spring 5-10 years, hose and coupler 3-4 years depending on use intensity and solvent exposure. A full rebuild costs a fraction of a new gun and extends working life indefinitely. For Australian and NZ service, contact your local distributor or the STAR sales team directly for the rebuild-kit SKU and fitting guidance.

How should I store the S-716 between Australian farm work seasons?

For storage periods exceeding 30 days: drain the reservoir, disassemble the head and barrel, wipe the barrel interior with a lint-free rag dampened with mineral spirits, dry completely, reassemble with a light film of grease on the plunger-rod seal, cap the coupler, and store horizontally in a clean, dry shed. Do not leave the gun loaded with grease for extended inactive periods because oil separation accelerates when grease sits undisturbed, which causes priming problems on reload. For storage under 30 days (between weekly service cycles during active seasons), the gun can be left loaded provided the plunger rod is released and the coupler is capped. Always store out of direct sunlight to prolong powder-coat and hose-rubber lifespan.

Is the S-716 included in OEM and private-label programs for Australian distributors?

Yes. OEM and private-label manufacture is available on the S-716 for Australian and NZ distributors including custom branding, packaging design for retail or industrial-supply format, BSPT thread as default for these markets, and kit configuration per agreement. MOQ depends on customisation level: product-level rebranding (logo and packaging only) has a lower MOQ than full thread or kit-spec customisation. Shipping is sea freight to Sydney, Melbourne, Perth, Brisbane, Auckland, or Christchurch as common Australia/NZ hub ports. Mixed-container consolidation with other STAR products (pistol grip guns, heavy-duty variants, dispenser buckets, accessories) is possible to hit MOQ thresholds economically for distributors building a complete grease-and-lube catalogue. Contact the STAR export team for distributor pricing, lead times, and packaging specifications.

What accessories does the S-716 ship with in the box?

The standard kit includes the gun, hydraulic coupler, and either a 150 mm steel extension (S-716/R configuration), a 300 mm flexible hose (S-716/F configuration), or both (S-716/RF configuration), plus the instruction manual. Kit configuration is specified at order time. For distributor bulk orders wanting additional accessories (pointed connectors for flush-mount fittings, 4-jaw couplers, alternative hose lengths, locking couplers), custom kit bundles are available against MOQ. The base S-716 does not include the rubber sleeve or bundled pointed connector fitted on the pro-tier dual-piston S-712DP/PRO; those are pro-tier features on the dual-piston platform, a different product line with different positioning.

Why Global Buyers Trust STAR

We at STAR have manufactured lever action grease guns in our ISO 9001:2015 certified workshop since 1980. The S-716 ships with full export documentation and multilingual manuals, and is the medium-duty pressure-tier SKU for Australian and New Zealand distributors targeting rural merchant trade, agricultural equipment retail, caravan and trailer dealerships, and hardware retail channels.

ISO 9001:2015 certified workshop | CE and RoHS compliant | Government Export House | 40+ years of manufacturing experience, shipping to 27+ countries | OEM and private label available