Graco Dura-Flo 900 Instructions-Parts List Manual page 19

Reconnecting the Displacement Pump
(continued)
4. Screw the coupling nut onto the motor shaft (W)
loosely. Hold the motor shaft flats with a wrench to
keep it from turning. Use an adjustable wrench to
tighten the coupling nut. Torque to 196–210 N.m
(145–155 ft-lb).
5. Reconnect all hoses. Reconnect the ground wire if
it was disconnected. Fill the packing nut (2) 1/3 full
of Graco Throat Seal Liquid or compatible solvent.
Model 236475 Shown
Fig. 5
Service
6. Turn on the air or hydraulic power supply. On
7. Before returning the pump to production, relieve
101
105
108
U
hydraulic pumps, open the hydraulic return line
valve first , then the supply line valve. Run the
pump slowly to ensure proper operation.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
the pressure and retorque the packing nut (2) to
128–156 N.m (95–115 ft-lb).
V
W
110
107
106
1
2
109
Torque to 128–156 N.m (95–1 15 ft-lb)
Torque to 196–210 N.m (145–155 ft-lb)
Torque to 81–89 N.m (60–66 ft-lb)