Motor
WARNING
To reduce the risk of serious injury, follow the
Pres-
sure Relief Procedure Warning
on page 21 be-
fore doing this procedure. Unplug the sprayer!
NOTE:
See Fig. 26 except where noted.
1. Relieve pressure.
2. Remove the motor shield (4).
3. Try to stop the pump with the piston rod (107) in its
lowest position. To lower the piston rod manually,
rotate the motor fan blades. Use a screwdriver to
push the retaining spring (18) up and push out the
pin (17). See Fig. 24.
4. Remove the shroud (4).
5. Lift the connecting rod. Remove the screws
(56,75) and lower the control card (47). Disconnect
the motor wires and the pressure transducer wire
(A) from the motor control board. Refer to Fig. 26.
6. Remove the drive housing cover (13). Remove
the control card (47), screws (71), and junction box
(59).
7. Turn the displacement pump rod (107) so the pin
hole aligns with the bottom drive housing screw
(19). See Fig. 25. Remove the three drive housing
screws and lockwashers (19,6). See Fig. 25 and
26
.
8. Remove the two motor screws and lockwashers
(5,6).
9. Tap the lower rear of the drive housing (11) with a
plastic mallet to loosen the motor. Pull the drive
housing straight off the motor while guiding the
harness (A) from the motor. Do not allow the gear
(16) to fall. Read the CAUTION on page 30.
10. Remove the two screws (46) and lift the motor off
the cart (1).
11. Align the new motor with the cart and reinstall the
screws (46).
12. Assemble the drive housing to the motor. Follow
steps 8 to 14 on page NO TAG. Install the junction
box.
13. Connect the wires in the junction box. Refer to Fig.
12. Install the control card.
14. Connect the piston rod (107) to the drive housing;
see page 24,
Installing the Pump
, Step 2 and the
WARNING following it.
15. Install the shroud (4).
17
18
15
Fig. 24
01068
107
19,6
Fig. 25
01074
19
6
13
34
59
56
12
16
11
4
5
6
46
TORQUE TO
80 in–lb (9 N.m)
TORQUE TO
80 in–lb (9 N.m)
Fig. 26
A
02994
75
47
71