Graco GH 833 16U287, Repair Manual, Page: 18 / 34

Hydraulic Pump Replacement
18 311283H
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
ti7800
34
35
30
3
ti7816
34
3
35
30
ti7816
10
9
3
ti7778
4
ti7813
1/8 inch
4
139
ti7835