Melter Pump Component Repairs - Graco InvisiPac HM10 Instructions Manual

Repair
Melter Pump Component
Repairs
Air Motor Repairs
See F . 79 on page 93 for details.
IG
Remove the Air Motor from the Melter
1. Prepare Equipment for Service. Follow the steps
on page 82.
2. Remove Equipment Covers. Follow the steps on
page 82.
3. Disconnect the level sensor cable from the level
sensor (240) and air line going into the sensor
housing.
4. Loosen the fastener (246) on the funnel support
bracket (639). Loosen the funnel retaining rings
(244) and remove the funnel.
5. Disconnect air tubes from the air motor air inlet
fitting (648).
6. Slide the retaining ring (607) up the shaft of the air
motor.
7. Remove the pump connecting pin (606) to separate
the air motor and pump.
8. Use a hex key to remove the fasteners (608) from
the air motor mounting plate (603) and lift air motor
off of the melter.
Disassemble the Air Motor
1. Remove the Air Motor from the Melter. Follow
the steps on page 92.
2. Loosen the fasteners (609) from the air motor
mounting plate (603) and remove the mounting
plate.
3. Remove the tie rods (604) from the air motor (605).
4. Remove the fastener (649) holding the funnel motor
support bracket (639) from the air motor.
5. Remove the cycle switch (234). See Replace Cycle
Switch Sensor, page 84.
92
Assemble the Air Motor
1. Install the motor retaining o-ring (607) onto the
motor.
2. Install cycle switch (234) and the funnel motor
support bracket (639) on the air motor.
3. Install tie rods (604) into the motor. Torque to
Torque to 24-30 ft-lb.
4. Apply threadlocker to the tie rod fastener (609)
threads.
5. Secure the tie rods (604) to the mounting plate (603)
with the tie rod fasteners (609). Torque the
fasteners (609) to 90-110 in-lbs.
Install the Air Motor onto the Melter
See F . 79 for reference.
IG
1. Place the assembled air motor onto the melter.
2. Place the pump connecting pin (606) through the
motor and pump shaft (616). The motor shaft may
need to be manually raised, lowered, or rotated to
the correct position.
3. Slide retaining o-ring (607) into place over the
connecting pin (606).
4. Install fasteners (608) to secure the air motor onto
the melter.
5. Replace the funnel assembly.
6. Install the equipment covers. See F
page 82.
. 68 on page
IG
3A7259C