308353
19
Service
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.
6. Turn on the air or hydraulic power supply. On
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.
7. Before returning the pump to production,
relieve
the pressure
and retorque the packing nut (2) to
128–156 N.m (95–115 ft-lb).
05182B
Fig. 5
101
109
108
107
105
106
110
2
1
2
1
V
U
W
3
3
Model 236475 Shown
1
2
Torque to 128–156 N.m (95–115 ft-lb)
Torque to 196–210 N.m (145–155 ft-lb)
3
Torque to 81–89 N.m (60–66 ft-lb)
Summary of Contents for Dura-Flo 900
Page 35: ...Notes...
