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Maintenance Instructions
13
2. Apply oil to the drive chain.
3. Adjust the chain if necessary. Refer to AD-
JUSTMENTS of Drive Chain Tension in this
section.
4. Reinstall chain guard cover by reversing the re-
moval procedure.
Lifting Mechanism
Lubricate the grease fittings (4) across the lifting
mechanism attached to the frame every 25 hours.
Use SAE general purpose lithium or molybdenum
base grease.
Lubricating Lift Mechanism and Camshaft Drive
Camshaft Drive System
Lubricate the grease fittings (16) on the camshaft
drive system every 4 hours. Use Almagard
®
#3752
lubricant (Walker P/N 6685-7). The bearings at
each end and attached to the retractor plate arms
are sealed and should be greased every 100 hours
of operation.
PTO U-Joint
Lubricate the grease fitting for the PTO U-Joint ev-
ery 8 hours with SAE general purpose lithium or
molybdenum base grease.
The PTO U-Joint is accessed by removing the gear-
box cover.
ADJUSTMENTS
Drive Chain Tension
The drive chain should have 1/4 to 1/2 in. (6 to 13
mm) of slack at midspan. Remove the chain guard
cover to check slack. Adjust the drive chain as fol-
lows:
1. Remove the three (3) screws fastening the re-
movable chain guard cover to the frame.
2. Loosen the chain tension block mounting nut
and bolt (see photo below).
3. Position the chain tension block so the chain
has 1/4 to 1/2 in. (6 to 13 mm) of slack.
4. Retighten the chain tension block mounting nut
and bolt.
5. Recheck the drive chain tension.
Drive Chain Adjustment
Lifting
Mechanism
Camshaft
Drive
WARNING
DO NOT attempt to make any adjustments
with the tractor engine running. Disen-
gage the PTO clutch, shut off the machine,
and remove the ignition key. Wait for all
movement to stop before getting off the
seat.
Ref. Chain
Guard
Tension
Block Nut