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MAINTENANCE - Self Propelled Mowers (only)
Drive wheel cleaning and drive pawl lubrication – refer to figure 19 and 20
Every 50 hours :-
Disconnect the spark plug lead.
Support the rear wheels off the
ground and remove the wheel caps
(A).
Remove the nyloc nut and tension
washer (K) retaining the wheel (D) to
the axle.
Remove the wheel (D) from the axle
and clean the inside of the wheel
hub.
Remove the circlip (E), outer washer
(F), outer bush (G), pinion gear (H)
and pawl (J) from the drive shaft
(recording the orientation of the
pinion gear and the pawl to ensure
correct reinstallation).
Clean all components.
Figure 19. Rear drive wheels
Lightly grease the pawl (J), the slot in
the shaft, bushes (G) and the inside
of the pinion gear (H) with light
general purpose grease then refit the
components onto the drive shaft in
the correct orientation, retaining them
with the circlip (E).
Figure 20.
Rear wheel pinions and pawls
Note: The pinion gear (H) is marked “R” on one side and “L” on the other. The pinion
gear (H) is to be fitted with the “R” displayed when fitted on the right hand drive side
of the mower and with the “L” displayed when fitted on the left hand drive side. Refer
to figure 20.
The right and left side of the mower is indicated while standing in the operator
position.
Note: The pawl must always be orientated so that the side with the large flat face (M)
will come in contact with the flat faces inside the pinion gear (N) The orientation is
important to ensure that the pawl will drive the pinion gear when the clutch is
engaged). Refer to figure 20.
Replace the wheel and retain using the tension washer and the nyloc nut (K).
Tension the nut just enough to remove the side to side movement of the wheel.
Replace the wheel caps (A) and the spark plug lead and lower the wheels to the
ground.