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GP8045/GP8048 PUMP REPAIR KITS
Plunger Packing Kits
GP8045 - #09626
Item Part # Description Qty.
38A 05387 O-Ring 6
39A 05066 O-Ring 3
40 13290 Seal Ring 3
42 05394 V-Sleeve 9
GP8048 - #09627
Item Part # Description Qty.
38A 05387 O-Ring 6
39A 05066 O-Ring 3
40 05390 Seal Ring 3
42 05393 V-Sleeve 9
Oil Seal Kit - #09584
Item Part # Description Qty.
32 05058 Radial Shaft Seal 3
33A 05056 O-Ring 3
Valve Assembly Kit - GP8045 & GP8048
Inlet Valve Kit - #09628
Item Part # Description Qty.
51B 05400 Inlet Valve Seat 3
51C 05314 Valve Plate 3
51D 05401 O-Ring 3
51E 07732-0100 Valve Spring 3
51F 08282 Valve Spring Guide 3
56A 05410 O-Ring 3
Discharge Valve Kit - #09629
Item Part # Description Qty.
52B 05407 Discharge Valve Seat 3
52C 05314 Valve Plate 3
52D 05408 O-Ring 3
52E 07732-0100 Valve Spring 3
52F 08282 Valve Spring Guide 3
56A 05410 O-Ring 3
ITEM PART # DESCRIPTION TORQUE Ft-lbs (NM) TOOL NEEDED
17 05038 Hexagon Socket Screw 64 (87) 10mm allen wrench
24 05047 Connecting Rod Hexagon Socket Screw 37 (50) 8mm allen wrench
33B 05054 Clip Ring n/a Industrial Snap ring pliers
36C 05062 Tension Screw 30 (40) 16mm socket
49A 05073 Hexagon Nut (manifold) 265 (360) 30mm socket
51/52 05399 / 05406 Valve Assemblies n/a Valve puller (p/n 07662) - included w/ pump
58 05087 Hexagon Socket Screw 132 (180) 12mm allen wrench
K5 07381 Hexagon Socket Screw n/a 8mm allen wrench
GP8045/GP8048 TOOL LIST AND TOR
Q
UE SPECIFICATIONS
Problem Cause Solution
Pressure drops, water leaks V-sleeves leak Replace V-sleeves, examine surface of
p
lun
g
er
Dischar
g
e or suction valve leaks Replace valve
Steam formation (cavitation) Reduce suction height, reduce flow resistance
in inlet line, clean inlet filter, lower water
tem
p
erature
Worn valves Examine valves
O-Ring on the valves or inlet valve
ada
p
ter leaks
Examine O-ring, examine valve casing for
unevenness on the sealin
g
surfaces
Oil leaks at visible part of
p
lun
g
e
r
Gear sealing is leaky Examine seals and running surface of plunger
Dirty mile-colored frothy oil Oil has mixed with water Replace oil immediately, find and fix the cause
Oil leaka
g
e on the crankshaft Shaft seal rin
g
leaks Check seal and shaft
Noise increases without loss of
pressure
Worn bearing Dismantle gear, examine all parts, replace
worn parts, check oil level. If service life was
too short, check for excess strain or whether
lubrication intervals were too long. Only
s
p
ecified lubricants are to be used
Pressure drops, pump
becomes loud
Irregular pressure
GP8000 Trouble Shooting
7