308–030
DRIVE HOUSING
To reduce the risk of serious bodily injury, al-
ways follow the Pressure Relief Procedure
Warning on page 14 before checking or re-
pairing any part of the spray system.
WARNING
NOTE: Refer to Fig 20 for this procedure.
1. Remove the sprayer’s shroud and the lift han-
dle (2).
2. Remove the displacement pump.
See page 16.
3. Remove the two screws (51). Pull the bearing
housing and connecting rod assembly (A) off
the crankshaft (B).
4. Remove the screws (8b) and pull the drive
housing (C) off the motor housing (D).
5. Remove the screws (8c) and pull the motor
housing (D) off the motor.
6. Clean the gear (60) and inspect it for wear or
damage. Replace if necessary. To remove the
gear, drive out the pin (61) and pull the gear
off the motor shaft. Apply molybdenum disul-
fide spray lubricant to the gear, allow to dry,
and then apply industrial-grade, heavy-duty,
extreme-pressure, lithium-soap grease.
7. Install the new drive assembly.
Fig 20
61
60
8b
8a
8d
8c
A
50
51
2
B
C
D
Summary of Contents for PRO 301
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