21
310524
Service
Separating the Pump from the Air Motor
For more information, see pump manual, or call Graco
technical support representative.
Fig. 7. Separate pump from air motor as follows:
Fig. 7
41
42
43
42
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 13).
NOTE: To remove only the pump from the ram perform
steps 1 through 5 of the previous section, Removing/
Re–installing the King, Senator, or Bulldog Pump
from the Ram. Then complete the following steps:
1.
Remove material hoses from pump.
2.
Remove the coupling nut (41), which attaches the
pump to the air motor. Be careful not to lose the
collar couplings.
3.
Remove the nuts (42) from the stand-off rods (43).
You can now separate the pump from the air
motor.
Re-attaching the Air Motor to the Pump
Reverse the above procedure to re-attach the pump to
the air motor.
Be sure that when you reinsert the collar couplings into
the coupling nut (41), the large flanges point upwards.
1.
Torque the nuts (42) to 68–81 N.m (50–60 ft-lbs).
2.
Torque the coupling nut (41) to 196–210 N.m
(145–155 ft-lbs).
3.
Attach material hoses.
Removing the Follower from the Pump
To remove the follower from the pump assembly:
1.
Remove the pump assembly by following the steps
in the Removing the Pump Assembly procedure.
2.
Remove the air line from the blow-off valve.
3.
Remove the screws and washers from the follower
adapter.
4.
Slide off the follower.
Re-attaching the Follower to the Pump
Reverse the above procedure to reattach the follower
to the pump.
If your pump/follower configuration has an o-ring:
1.
Lubricate the o-ring.
2.
Replace the o-ring
3.
Slide the follower back onto the pump.
If your pump/follower configuration has a gasket, be
sure to replace the gasket before sliding the follower
back onto the pump.
