Filter
Top Products
Repair
311327E 13
3. Remove four bolts (117) to remove entire air motor
assembly.
4. Remove lock nut (118) from piston rod (138) and
remove pump yoke (122).
5. Remove four lock nuts (118), washers (116), and
tie-rod bolts (117).
6. Lift top plate (115) and remove from air cylinder
(114).
7. Push piston rod assembly out of air cylinder and
replace piston o-ring (139) and lubricate.
8. Remove nut (177). Replace bottom plate bearing
(135), u-cup seal (136), and lubricate. Ensure the
open end of the u-cup seal faces up.
9. Replace top and bottom o-rings (140) in plates. Use
lubricant to hold in place.
10. Assemble in reverse order.
11. Torque tie rod bolts in small increments evenly to
17-22 in-lbs (3•4 Nm).
Primary Heater
1. Turn Main Disconnect Switch OFF.
2. Perform Pressure Relief Procedure, page 5.
3. Wait for heater to cool.
4. Perform Flushing, page 5.
Removal
1. Disconnect two fluid lines at bottom of heater.
2. Disconnect upper fluid hose from fittings.
3. Remove two side screws from thermostat cover.
4. Disconnect two main power leads from wire
harness.
5. Remove four screws underneath heater. Retain four
thermal barrier spacers for later installation.
6. Pull heater assembly out and remove from unit.
Service
See Parts on page 16 for servicing.
Installation
Reconnect and install primary heater in reverse order of
removal steps.
Fluid Inlet Filter Screen
A Y-line filter screen before each proportioning pump
traps solid matter to ensure proper operation of ball
check valves in pump base. Inspect and clean both
screens. See Predator Proportioner Operation manual
(311326).
Read Warnings on page 3. Wait for heater to cool
before repairing.
TI9513b
117
115
114
138
118
122
135
136
140
139
177
Regularly clean isocyanate pump screen during
start-up procedure. This minimizes moisture con-
tamination problems by immediately flushing out
any isocyanate residue at start of dispensing oper-
ation.
TI9516a