Graco Therm-O-Flow Plus, Instructions Manual

Page: 55 / 82

55 309085
Service
Inspection Frequency
Ram
Periodically (once a month), inspect the ram guide
sleeves, rods and cylinders for wear or damage,
replace all worn parts. See the
Service section of
Form 310523 for instructions on replacing worn parts.
Pump
See the material pump instructions for its inspection
frequency.
Ground Fault Interrupt
Periodically (once a month) test the ground fault
interrupt switch by pushing the TEST button.
Removing/Replacing the CB100 Controller
See Form 309100 for instructions on removing and/or
replacing the temperature controllers on the system.
Ram Service
To relieve ram air pressure, follow the procedure
below. For more more information about servicing the
ram, see Form 310523,
165 mm (6.5”) Global Ram
Module.
Ram Pressure Relief Procedure
WARNING
To reduce the risk of serious injury whenever you
service the ram, always follow the procedure
below.
To relieve air pressure in the ram:
1. Relieve the supply unit pressure .
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 23).
2. Using the ram hand valve lever on the air control
(Fig. 14), move the ram to the DOWN position.
Fig. 14
PH00019
3. When the ram reaches the full down position,
move the ram hand valve lever to OFF.
4. Close the master air lock-out valve (A) shown in
Fig.15.
Fig. 15
A
PH00032
5. Exhaust air from both sides of the ram:
a. Move the ram hand valve lever to the DOWN
position until all air is exhausted from one side
of the ram.
b. Move the ram hand valve lever to the UP
position until all air is exhausted from the other
side of the ram.