Repairs at the unit
18. Slide the top of the piston (3) into the T-slot (10) on the slider
assembly (4).
19. Position the pump manifold (2) underneath the gear unit
housing and push up until it rests against the gear unit
housing.
20. Attach pump manifold (2) to the gear unit housing. Ensure
that the pressure sensor does not damage the pressure sensor
seal (10).
21. Screw pump manifold (2) tightly to gear unit housing.
22. Lubricate O-ring (Fig. 10, Item 6) between pump manifold (2)
and inlet valve housing with machine grease. Screw inlet valve
housing to the pump manifold.
23. Stand units - Push connection bend of suction hose into the
inlet valve housing (Fig. 10, Item 1) and secure with retaining
clip. Screw on return hose and clamp to suction hose.
Cart units - Thread the siphon tube into the inlet valve and
tighten securely. Make sure to wrap the threads on the down
tube with PTFE tape before assembly. Replace the return hose
into the hose clip on the siphon tube.
24. Install front cover.
11.4
Replacing the motor assembly
1. Open the relief valve, valve position PRIME (k circulation),
switch the unit OFF, and unplug the power cord.
2. Remove the four motor cover screws (Fig. 15, Item 1). Remove
the motor cover (2).
3. Remove the four heat sink assembly screws (3). Pull the heat
sink assembly (4) away from the gear box housing (5).
4. Disconnect the five wires from the relay (6) that is mounted on
the inside of the heat sink assembly.
5. Connect the five wires to the relay (refer to the electrical
schematic in section 11.8 of this manual).
6. Using the four heat sink assembly screws (3), install the heat
sink assembly (4) onto the gear box housing (5). Tighten the
screws securely.
7. Disconnect the black and red wires coming from the gear
box housing. Disconnect the black and red wires from the
capacitors (8). Disconnect the black and red wires from the
motor (9).
8. Loosen and remove the four motor mounting screws (10).
9. Pull the motor out of the gear box housing.
i
If the motor will not dislodge from the pump
housing:
• Remove the front cover plate.
• Using a rubber mallet, carefully tap on the
front of the motor crankshaft that extends
through the slider assembly.
10. With the motor removed, inspect the gears in the gear box
housing for damage or excessive wear. Replace the gears, if
necessary.
11. Install the new motor into the gear box housing.
i
Rotate the motor fan manually until the armature
gear engages with the mating gear in the gear box
housing.
12. Secure the motor (9)with the four motor mounting screws
(10).
13. Push the new capacitors into their clip (8) on the new motor.
14. Reconnect the wires (refer to the electrical schematic in the
section 11.8 of this manual).
15. Slide the motor cover (2) over the motor. Secure the motor
cover with the four motor cover screws (1).
GB
5
9
8
11.5
Carbon brushes in motor (Motor Brush kit P/N
704-276)
1. Remove the four screws (Fig. 16, Item 1) at the motor cover (2).
Remove motor cover.
2. Remove the two screws (3) at the shells (4). Remove shells.
3. Lift up both covers (5) with a small screwdriver.
4. Pull red wire (6) and black wire (7) out of the respective carbon
brush.
5. Insert new carbon brush and snap cover (5) into place.
6. Insert red wire (6) and black wire (7) onto the respective
carbon brush.
7. Screw down both shells (4).
8. Push motor cover (2) over the motor and fasten with the four
screws (1).
5
6
16
3
4
6
10
7
3
4
Performance Series 650e
1
2
1
2