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Position
Item#
1
07600
10
22706
12
07109
24
13182
30A
07225-0100
32
07624
36A
07667
36C
07664
49
13159
49A
13160
58
06682
MALFUNCTION
The Pressure and/
or the Delivery Drops
Water in Crankcase
Noisy Operating
Rough/Pulsating
Operation with
Pressure Drop
Pump Pressure as
Drop at gun Rated,
Pressure
Excessive
Leakage
High Crankcase
Temperature
GP7142 Torque Specifications
Description
Crankcase
Hexagon Screw
Drain Plug
Connecting Rod
Assembly
Hexagon Screw
Radial Shaft Seal
Plunger Connection
Tension Screw
Stud Bolt
Hexagon Nut
Plug
PUMP SYSTEM MALFUNCTIONS
CAUSE
Worn packing seals
Broken valve springs
Belt slippage
Worn or Damaged nozzle
Fouled discharge valve
Worn or Plugged relief valve on pump
Cavitations
Unloader
High Humidity
Worn Seals
Worn bearings
Cavitation
Worn packing
Inlet restriction
Accumulator pressure
Unloader
Cavitation
Restricted discharge plumbing
Worn plungers
Worn packing/seals
Excessive vacuum
Cracked plungers
Inlet pressure too high
Wrong Grade of Oil
Improper amount of oil in crankcase
Lubrication Info
Molycote/Cu-Paste
Loctite 403
Loctite 243
Loctite 270
REMEDY
Replace packing seals
Replace springs
Tighten or Replace belt
Replace nozzle
Clean valve assembly
Clean, Reset, and Replace
worn parts
Check suction lines on inlet
of pump for restrictions
Check for proper operation
Reduce oil change intervals
Replace seals
Replace bearings, Refill
crankcase oil with recommended
lubricant
Check inlet lines for restrictions
and/or proper sizing
Replace packing
Check system for stoppage
air leaks, correctly sized
inlet plumbing to pump
Recharge/Replace accumulator
Check for proper operation
Check inlet lines for restrictions
and/or proper size
Re-size discharge plumbing to flow
rate of pump
Replace plungers
Adjust or Replace packing seals
Reduce suction vacuum
Replace plungers
Reduce inlet pressure
Giant oil is recommended
Adjust oil level to proper amount
7
Torque Specifications
33 ft.-lbs. (45 Nm)
59 ft.-lbs. (80 Nm)
30 ft.-lbs. (40 Nm)
89 in.-lbs. (10 Nm)
33 ft.-lbs. (45 Nm)
30 ft.-lbs. (40 Nm)
103 ft.-lbs. (140 Nm)
107 ft.-lbs. (145 Nm)
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