13
308302
Operation
Changing Fluid Cans
1.
Stop the pump. Close the bleed-type master air
valve (8), but leave air pressure on to the ram. Set
the ram air regulator (27b) to below 210 kPa, 2.1
bar (30 psi). Open the dispensing valve and relieve
all fluid pressure in the system.
2.
Set the director valve switch (36) to UP.
3.
Push in the air assist valve (18) and hold it in until
the wiper plate clears the top of the can.
CAUTION
If the fluid has set up and the wiper plate (P) is stuck
in the can, do not increase the setting of the ram air
regulator (27b) to remove the plate. Excessive
pressure in the can may cause the can to rupture. If
you cannot pull the can off the plate by hand, loosen
the two screws (302) holding the plate to the pump
(1), disconnect the air tube (76) from the plate, and
remove the can and plate. It may be necessary to
cut the can to remove the plate.
4.
Loosen the clamps (24) and remove the empty
can. Set the full can on the ram base and position
it under the wiper plate. If the can has a welded
seam, position it with the seam facing the rear of
the pump.
5.
Lower the ram and adjust the position of the can
relative to the wiper plate, as explained under
Starting and Adjusting the Ram on page 11.
Clamp the can in place.
Shutdown and Care of the Pump
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
1.
Always flush the pump with a compatible solvent
before fluid dries in the pump.
2.
Set the director valve switch (36) to DOWN. Allow
the ram to go to the lowest position.
3.
Shut off the air supply to the ram and pump and
relieve the pressure.
