Hexagon Nut; Valve Casing - Giant GP8055 Models Manual

GP8055/GP8060/GP8065 PUMP REPAIR KITS
Plunger Packing Kits
GP8055 - #09616
Item Part # Description
38A 13286 O-Ring
38B 05281 Support Ring
39A 05066 O-Ring
40 07723 Seal Ring
42 05277 V-Sleeve
GP8060 - #09617
Item Part # Description
38A 06667 O-Ring
39A 05066 O-Ring
40 05067 Seal Ring
42 05069 V-Sleeve
GP8065 - #09586
Item Part # Description
38A 06667 O-Ring
39A 05066 O-Ring
40 06996 Seal Ring
42 06997 V-Sleeve
GP8055/GP8060/GP8065 TOOL LIST AND TORQUE SPECIFICATIONS
ITEM PART # DESCRIPTION
17 05038 Hexagon Socket Screw
24 05047 Connecting Rod Hexagon Socket Screw
33B 05054 Clip Ring
36C 05062 Tension Screw
49A 05073 Hexagon Nut (manifold)
51/52 05084/05076 Valve Assemblies
58 05087 Hexagon Socket Screw
K5 07381 Hexagon Socket Screw
Problem
Pressure drops, water leaks
Pressure drops, pump
becomes loud
Irregular pressure
Oil leaks at visible part of
plunger
Dirty mile-colored frothy oil
Oil leakage on the crankshaft
Noise increases without loss of
pressure
Qty.
6
6
6
3
9
Qty.
6
6
3
9
Qty.
6
6
3
9
TORQUE Ft-lbs (NM) TOOL NEEDED
GP8000 Trouble Shooting
Cause
V-sleeves leak
Discharge or suction valve leaks
Steam formation (cavitation)
Worn valves
O-Ring on the valves or inlet valve
adapter leaks
Gear sealing is leaky
Oil has mixed with water
Shaft seal ring leaks
Worn bearing
Oil Seal Kit - #09221
Item Part # Description
33A 05056 O-Ring
33B 05057 Compact Ring
33C 05058 Radial Shaft Seal
Inlet Valve Kit - #09587
Item Part # Description
53B 05078 Inlet Valve Seat
53C 05079 Valve Plate
53D 07658 O-Ring
53E 05080 Valve Spring
53F 05081 Valve Spring Guide
Discharge Valve Kit - #09588
Item Part # Description
54B 05084 Discharge Valve Seat
54C 05079 Valve Plate
54D 06258 O-Ring
54E 05080 Valve Spring
54F 05081 Valve Spring Guide
64 (87) 10mm allen wrench
37 (50) 8mm allen wrench
n/a Industrial Snap ring pliers
30 (40) 16mm socket
265 (360) 30mm socket
n/a Valve puller (p/n 07662) - included with pump
132 (180) 12mm allen wrench
n/a 8mm allen wrench
Solution
Replace V-sleeves, examine surface of
plunger
Replace valve
Reduce suction height, reduce flow resistance
in inlet line, clean inlet filter, lower water
temperature
Examine valves
Examine O-ring, examine valve casing for
unevenness on the sealing surfaces
Examine seals and running surface of plunger
Replace oil immediately, find and fix the cause
Check seal and shaft
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
specified lubricants are to be used
8
Qty.
3
3
3
Qty.
1
1
1
1
1
Qty.
1
1
1
1
1