Graco Therm-O-Flow Plus, Инструкция по эксплуатации

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58 309085
Service
Pump Removal and Replacement
For information about servicing the Check-Mate 800
Displacement Pump, see Form 308570.
1. If the material drum has already been removed
from the supply unit, go to step 2. If you need to
remove the material drum, perform steps 1
through 7 of the
Drum Changing procedure in
Graco form 309180, Installation and Operation
Guide.
2. Make sure the ram plate is down and the ram hand
valve is in the OFF position (Fig. 14).
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 23).
3. Relieve the supply unit pressure .
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve ram pressure, always
follow the
Ram Pressure Relief Procedure on
page 55.
4. Relieve the ram air pressure.
5. Turn OFF the main electrical power to the supply
unit. Follow all applicable safety procedures and
lockout rules.
6. Turn OFF the main electrical disconnect.
WARNING
ELECTROCUTION HAZARD
To reduce risk of injury or damage to
equipment, make sure the main discon-
nect is OFF before continuing with this
procedure.
7. Bleed off excess material and pressure in the
system by opening the dispense gun and catching
the material in a waste container.
8. On the electrical control panel, turn the system
HEAT ON switch to OFF.
9. Disconnect all material hoses.
10. Disconnect the pump from the junction box by:
a. Removing the cover of the junction box.
b. Disconnecting the heater wires and sensor
wires that come from the pump.
c. Removing the wires from the junction box.
d. Disconnecting the pump’s back shroud and
moving it backwards out of the way.
11. Loosen the pump mounting screws (116) and then
remove the pump mounting plates (115).
12. Remove the two bolts from the top of the ram plate
rods.
13. Secure the air motor to the ram tie bar.
14. Remove the pump and service it as needed. To
remove the remaining shrouds from the pump, go
to the next section,
Separating the Pump from
the Air Motor (page 59). See Form 308570 for
more information about the pump.
15. Reverse this procedure to reinstall the pump.