Repair
334127D
9
Repair
NOTE:
The numbers and letters in parentheses used in
the Repair section refer to the callouts shown in the Fig-
ures. Also see
Parts
, beginning on page
16
.
Required Tools
•
Torque wrench
•
Bench vise with soft jaws
•
Rubber mallet
•
Hammer
•
O-ring pick
•
13 mm (1/2 in.) diameter brass rod
•
Set of socket wrenches
•
Set of adjustable wrenches
•
Pipe wrench
•
Screwdriver
•
Heat gun
•
Gloves
•
Thread lubricant
•
Thread sealant
Disconnect the Pump
NOTE:
The priming position can be serviced without
disconnecting the displacement pump from the motor.
See
Replace the Priming Piston
on page
11
.
1. Flush the pump, if possible. Stop the pump at the
bottom of its stroke to prevent fluid from drying on
the exposed displacement rod.
2. Relieve the pressure. See
Pressure Relieve Pro-
cedure
on page
8
.
3. Allow the pump to cool if it is being used in a heated
system.
NOTE:
It may be necessary to use a heat gun to ease
disassembly of some parts.
4. Disconnect the air and fluid hoses.
5. Disconnect the pump from the heated platen.
6. Disconnect the displacement pump from the motor
as explained in the instructions for the system you
are using.
Heated fluid can cause severe burns and can cause
equipment surfaces to become very hot. Wear protec-
tive gloves and clothing when operating this equip-
ment in a heated system. Allow the equipment to cool
thoroughly before servicing.
