Giant GP8065 - Manual (Page 8)

GP8055/GP8060/GP8065 PUMP REPAIR KITS
Plunger Packing Kits
GP8055 - #09616
Item Part # Description Qty.
38A 13286 O-Ring 6
38B 05281 Support Ring 6
39A 05066 O-Ring 6
40 07723 Seal Ring 3
42 05277 V-Sleeve 9
GP8060 - #09617
Item Part # Description Qty.
38A 06667 O-Ring 6
39A 05066 O-Ring 6
40 05067 Seal Ring 3
42 05069 V-Sleeve 9
GP8065 - #09586
Item Part # Description Qty.
38A 06667 O-Ring 6
39A 05066 O-Ring 6
40 06996 Seal Ring 3
42 06997 V-Sleeve 9
Oil Seal Kit - #09221
Item Part # Description Qty.
33A 05056 O-Ring 3
33B 05057 Compact Ring 3
33C 05058 Radial Shaft Seal 3
Inlet Valve Kit - #09587
Item Part # Description Qty.
53B 05078 Inlet Valve Seat 1
53C 05079 Valve Plate 1
53D 07658 O-Ring 1
53E 05080 Valve Spring 1
53F 05081 Valve Spring Guide 1
Discharge Valve Kit - #09588
Item Part # Description Qty.
54B 05084 Discharge Valve Seat 1
54C 05079 Valve Plate 1
54D 06258 O-Ring 1
54E 05080 Valve Spring 1
54F 05081 Valve Spring Guide 1
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 05084/05076 Valve Assemblies n/a Valve puller (p/n 07662) - included with pump
58 05087 Hexagon Socket Screw 132 (180) 12mm allen wrench
K5 07381 Hexagon Socket Screw n/a 8mm allen wrench
GP8055/GP8060/GP8065 TOOL LIST AND TORQUE SPECIFICATIONS
Problem Cause Solution
Pressure drops, water leaks V-sleeves leak Replace V-sleeves, examine surface of
plunger
Discharge or suction valve leaks Replace valve
Steam formation (cavitation) Reduce suction height, reduce flow resistance
in inlet line, clean inlet filter, lower water
temperature
Worn valves Examine valves
O-Ring on the valves or inlet valve
adapter leaks Examine O-ring, examine valve casing for
unevenness on the sealing surfaces
Oil leaks at visible part of
plunger 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 leakage on the crankshaft Shaft seal ring 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
specified lubricants are to be used
Pressure drops, pump
becomes loud
Irregular pressure
GP8000 Trouble Shooting
8