Graco 970086 Instructions-Parts List Manual page 14

Changing Drums
WARNING
MOVING PARTS HAZARD
Moving parts can pinch or amputate your
fingers. When the pump is operating and
when raising or lowering the ram, keep
your fingers and hands away from the pump intake,
ram plate, and lip of the drum.
1. Stop pump. Close pump air bleed valve (H). See
Fig. 5.
2. Before raising wiper plate, locate push button on
air release valve (V).
3. Set director valve (U) to UP to raise wiper plate. At
the same time, carefully equalize pressure in drum
by operating air release valve.
4. Raise wiper plate until it is completely out of drum.
5. Remove empty drum.
6. Inspect wiper plate and, if necessary, remove any
remaining material or material build–up.
7. Place full drum on ram base.
8. Lower ram and adjust position of drum relative to
ram plate, as explained under Starting and Ad-
justing Ram on page 12.
Shutdown and Care of the Pump
1. Set director valve (U) to neutral. See Fig. 5.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 14.
2. Relieve pressure.
3. Follow pump shutdown instructions in your sepa-
rate pump manual.
14
310364
Operation
Pressure Relief Procedure
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
D are instructed to relieve the pressure,
D stop dispensing,
D check or service any of the system equipment,
D or install or clean the dispense ball valve.
1. Relieve system pressure to which Graco module
supply units are attached.
2. Close dispenser ball valves (S). Unhook ball
valves from system. See Fig. 1.
3. Close pump air bleed valve (H, required in your
system). See Fig. 1 or Fig. 5.
4. Shut off main air bleed valve (E, required in your
system). Set ram director valve (U) to DOWN.
Ram will slowly drop.
5. Hold metal part of dispenser ball valve firmly to
side of grounded metal pail, and open ball valve to
relieve pressure.
6. Close dispenser ball valve.
7. Repeat procedure for each ram (for model 970086
only).
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid