MAINTENANCE
PARKING BRAKE
Should always be checked for operation after clutch/brake rods have been adjusted.
CUTTER DRIVE ADJUSTMENT
1.Move cutter Height Selector Lever to No. 4 Position in Rack.
2.Move cutter Drive Lever to the Engaged position.
3.Adjust Push Rods Fig. 16 to give a spring compression of 35mm. Fig. 17
Fig. 16
Fig. 17
4.Adjust Locknut ‘A’ to give 7mm clearance to back of Swivel Block. Fig 17
5.Disengage the Cutter Drive Selector Lever.
6.Adjust locknut ‘A’ in Fig. 20 to give Cutter Engagement Lever a free travel of 30mm, from bottom of slot in Fig. 18
NOTE:
Check to ensure lever has 30mm of free travel by working lever.
Fig. 18
CUTTERHEAD BRAKE
Should be regularly checked for operation.
PAD REPLACEMENT
(Refer figure 19)
1.Remove the ‘R’ Clip (A) from the push rod clevis pin and remove the clevis pin and push rod from brake arm assembly.
2.Remove the brake plate pivot bolt (B), two spacers and
nyloc nut and remove the brake plate assembly.
3.Drill out the two retaining rivets which hold the Brake pad assembly to the brake plate and discard the old brake pad and backing plate. The replacement brake pads are fitted with a chemically bonded backing plate, locate this backing plate against the brake plate and retain with two 3/16” rivets. Part No: A2901195.
4.Replace the brake plate to the cutterhead and adjust the cutterhead brake.
CUTTERHEAD BRAKE ADJUSTMENT
1.With the cutterhead disengaged and in low cut position.
2.Adjust the nyloc nut on the rod as per step 6 for Cutter Drive Adjustment.
3.Adjust the tension on the spring using the lock nuts to give length of 58mm. Fig. 20
Fig. 20
STEERING GEARS
Fig. 21
To adjust the excessive play caused by wear in the gears.
1.Loosen the bolts securing steering shaft pivot block
(A)
2.Lightly tap the pivot block towards the layshaft pivot and retighten bolts (A)
3.Check the steering gear engagement.
4.Check that there is no tight spots when turning the steering wheel from lock to lock.
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