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GP7170-4000 REPAIR INSTRUCTIONS
Preventative Maintenance Check-List & Recommended Spare Parts List
Check Daily Weekly 50hrs Every Every Every
500 hrs 1500 hrs 3000 hrs
Oil Level/Quality X
Oil Leaks X
Water Leaks X
Belts, Pulley X
Plumbing X
Recommended Spare Parts
Oil Change X X
Plunger Spare Parts (1 kit/pump) X
(See page 5 for kit list)
Oil Seal Kit (1 kit/pump) X
(See page 5 for kit lit)
Valve Spare Parts (1 kit/pump) X
(See page 5 for kit list)
24) After removing the C-clip (33B), pry out seal adapter (33) with a screwdriver.
25) Check seals (32) and surfaces of plunger base (25).
26) Remove crankcase cover (4). Loosen inner hexagon screws (24A) on the connecting rods (24) and push con rod halves
as far into the crosshead guide as possible.
CAUTION: Connecting rods (24) are marked for identification. Do not twist connecting rod halves. Connecting
rod is to be reinstalled in the same position on crankshaft journals.
27) Check surfaces of the connecting rod (24) and crankshaft (22).
28) Take out bearing cover (14) to one side and push out crankshaft (22) taking particular care that the connecting rod (24)
doesn’t bend.
29) Reassemble in reverse order: Regulate axial bearing clearance - minimum 0.1mm, maximum 0.15mm-by means of fitting
disc (20A). The crankshaft (22) should turn easily with little clearance. Tighten inner hexagon screws (24A) to 30 ft.-lbs.
CAUTION: Connecting rod (24) has to be able to be slightly moved sidewise at the stroke journals.
30) Reassemble cover (4) and seal (5) onto crankcase (1). Fasten with hexagon screws (10).
31) Reinstall shim (33C), and seal adapter (33) with radial shaft seal (32), and o-ring (33A) onto crankcase (1).
CAUTION: Radial shaft seal (32) must always be installed so that the seal-lip on the inside diameter faces the oil.
32) Reinstall remainder of fluid end as described above.
GP7170-4000 TORQUE SPECIFICATIONS
Position Item # Description Torque Amount (ft.-lbs.)
36C 07664 Plunger Tensioning Screw 26
49A* 13160 Nut 103
54 05250 Inner Hexagon Screw 155
*Important - Check torque bi-weekly on item 49A