Graco GH 16U277, Repair Manual

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Hydraulic Pump Replacement
20 332157A
11. Remove hydraulic pump (3).
12. Remove fittings (30, 34, 35) from pump (3) and set
aside to use on the new pump.
Installation
1. Install fittings (30, 34, 35) from old pump on new
pump. Torque fitting 30 and 35 to 600 + 10 in-lb
(67.8 N•m). Torque fitting 34 to 450 in-lb (50.8 N•m).
NOTE : Fill pump casing with hydraulic oil before install-
ing fitting (34).
2. Install new pump (3) in frame.
3. Install screws (9) and nuts (10). Torque to 225 + 10
in-lb (25.42 N•m).
4. Replace large pulley (4) on hydraulic pump shaft.
5. Align pulley (4) on shaft. When properly positioned
approximately 1/8 inch of shaft (139) will protrude.
3
ti7800b
34
35
30
3
ti20946a
ti20945a
34
35
30
3
10
9
ti7778b
4
ti7813b
1/8 inch
4
139
ti7835a