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111132_0909 4-3
General engine maintenance
Detailed instructions and recommendations for break-in and
regular maintenance are specified in the Engine Owner’s
manual. Please refer to this manual for engine servicing,
lubricating oil levels with quality and viscosity
recommendations, bolt torques, etc. The engine warranty is
backed by the manufacturer. Special attention should be paid to
applicable data which will not be duplicated here.
Belts
Inspect belts frequently for wear and serviceability. (Fig. 4-3
& Fig. 4-4) Replace a belt that shows signs of severe cuts, tears,
separation, weather checking and cracking, or burns caused by
slipping. Slight raveling of belt covering does not indicate
failure, trim ravelings with a sharp knife.
Inspect the belt pulley grooves and flanges for wear. A new
belt, or one in good condition, should never run against the
bottom of the groove. Replace the pulley when this is the case,
otherwise belt will lose power and slip excessively.
Never pry a belt to get it on a pulley as this will cut or damage
the fibers of the belt covering.
Keep oil and grease away from belts and never use belt
dressings.
Main drive belt adjustment
1. Park the machine on level ground, disengage traction
drive, cutting reel drive, stop engine and disconnect spark
plug wire before proceeding with this adjustment. Pull
the unit up on the stand.
2. Remove the front cover locking bolt and raise the front
cover.
3. Turn the cable lock nut counter-clockwise to loosen.
Fig. 4-5.
4. With traction drive lever disengaged, check length of
spring from hook to hook in its free state. Engage the
traction drive lever. The spring should stretch 0.20"
(5mm) when properly adjusted. Adjust the cable length
as necessary to achieve this. Fig. 4-5
5. Disengage the traction drive lever.
6. With the traction drive lever disengaged, check to make
sure there is no tension on the belts and that there is space
between the belts and the idler tensioning pulley. Fig. 4-5
7. Lower the front cover and secure in place with the
locking bolt.
8. Lower the unit to the ground from the stand, reconnect
the spark plug wire onto the spark plug, make sure the
traction drive lever is disengaged, and start the unit. Test
to make sure that the main drive belt is engaging properly
and the belts are not slipping.
NOTE: The cable may also be adjusted at the traction drive
lever end. Adjust here if more adjustment is necessary and can
not be attained at the drive belt end.
Reel drive belt adjustment
1. Park the machine on level ground, disengage traction
Fig. 4-2
Engine oil
dipstick and fill
Fig. 4-3
Fig. 4-4
Main drive
belts
Reel drive belt
Traction drive
belts