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Groz GP1 - User Manual

Groz GP1
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1
INSTRUCTION MANUAL S1230, Rev D
Air Operated Grease Ratio Pumps 50:1
GP1, GP2, GP3
Congratulations on purchase of this World Class Air Operated Grease Ratio Pump !
• World-class Industrial High Pressure Grease pump with guaranteed performance & hassle free operation
• Pump dispenses Grease at pressures upto 50 times the Air inlet pressure
• Designed to work in tough conditions- Ideal for use in Industry, workshop, farm, construction or as part of the Mobile Grease system
• All metal construction, fully CNC machined with hardened wear resistant moving parts
• Reciprocating piston operated 2.5” (63 mm) dia. Air Motor
• Fitted with strainer at suction tube inlet for clean grease to the bearing
• Supplied in two choices :-
- Pump Only
- Pump with Drum Cover, Rubber Lined Follower Plate, High Pressure Grease Hose, Z swivel & Professional Grease Control Valve
Grease Control Valve
Air Motor Assembly
Z Swivel
Drum Cover
High Pressure Rubber Hose
Cover Screws
Suction Tube
Follower Plate
Nozzle Holder
Fig.1

Table of Contents

Questions and Answers

  • J
    johnnykennedyAug 21, 2025
    What to do if air passes directly through my Groz GP1 Water Pump and it doesn't work?
    • C
      crawfordwendyAug 21, 2025
      If air passes directly from the inlet to the outlet and your Groz Water Pump doesn't work, it could be due to a few reasons. The Nylon Slider (27) might be jammed or overtight; refer to Drive Section Kit Replacement - Page 8 to check the Clip (28) and tighten it, ensuring the Nylon Slider (27) moves freely. If necessary, replace the Nylon Slider (27), Paper Seal (24), Seat (25), and Slider Guide (26). Another cause could be damaged Seals or O-Rings; inspect all Seals and O-Rings and replace any damaged parts from the Repair Kit. Lastly, a chip or foreign particle might be clogging the discharge coupler. Open the coupler, remove any foreign particles or chips, and reassemble it properly.
  • B
    Brittany LynchSep 1, 2025
    Why does Groz Water Pump continue to run after releasing the trigger?
    • S
      Stanley ParksSep 1, 2025
      If your Groz Water Pump continues to operate even after releasing the Grease Control Valve (68) trigger, there may be a leakage in the assembly. Check all connections to ensure they are airtight and use a thread sealant. Also, inspect O-rings and seals for damage and replace any defective parts from the Repair Kit.
  • M
    Marvin ArmstrongNov 10, 2025
    What to do if Groz GP1 Water Pump is not working or has less discharge?
    • G
      Gabriel AdamsNov 10, 2025
      If your Groz Water Pump is not working or has less discharge, there are a few potential causes. First, the inlet pressure may be too low; ensure it is at least 30 PSI (2 BAR). Secondly, the Nylon Slider (27) could be jammed or overtight. Refer to Drive Section Kit Replacement - Page 8 to check for any build-up edge on Clip (28) and tighten it again, ensuring the Nylon Slider (27) moves freely. If needed, replace the Nylon Slider (27), Paper Seal (24), Seat (25), and Slider Guide (26). Another possibility is that the Piston, Piston Rod, or Plunger is jammed. Refer to Pumping Section Kit Replacement - Page 6 to inspect components like the Extension Rod (46), Cylinder (51), Top Coupler (52), Slide Bush (53), and Piston Rod (55). Check for overlap or wear and tear, and replace any defective pa...

Groz GP1 Specifications

General IconGeneral
ModelGP1
CategoryWater Pump
Pump BodyCast Iron
ImpellerBrass
Frequency50 Hz
TypeCentrifugal
Inlet/Outlet Size1 inch
Max. Suction Lift8 meters
Max. Head30 meters
Power0.5 HP

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