MAINTENANCE
FLX3 980087 04/01/03
4-10
4. DIFFERENTIAL DRIVE CHAIN
The differential drive chain transfers power from the
drive motor to the differential. Check the chain
condition every 200 hours of operation. A tight chain
causes wear on bearings, chain, and increased
power consumption. A worn chain causes wear on
the sprocket.
ADJUSTING DIFFERENTIAL DRIVE
CHAIN
FOR SAFETY:
Before leaving or servicing
machine: Stop on level surface, set parking
brake, turn off machine and remove key
.
1.
From underneath the rear of machine loosen the
two motor mounting bolts. Do no remove bolts.
For ease of service, bolts screw into nut plates.
It is not necessary to use a backup wrench.
2.
There are two nuts on the threaded rod attached
to the motor position bracket. Loosen the nuts.
3.
Tighten the nut in front of frame cross member
to increase chain tension. Screw the nut to the
rear of frame away from the motor to decrease
chain tension. On the slack side, chain should
deflect between 1/2” and 3/4” measured
midway between the center lines of the
sprockets.
4.
Tighten nuts against each other to fix
adjustment.
5.
Tighten motor mounting bolts.
DRIVE WHEEL CHAIN
The drive wheel chains transfer power from the
differential shaft to the drive wheels. Check chain
condition and tension every 200 hours of operation.
The chain should deflect 1/2 in (13 cm) on the side
opposite the idler. Lubrication of drive chain is not
recommended. Clean dirt and grease build up from
chain to eliminate the abrasive effects.
ADJUSTING THE DRIVE WHEEL CHAINS
1.
Turn off machine with key switch and set parking
brake.
FOR SAFETY:
Before leaving or servicing
machine; Stop on level surface, set parking
brake, turn off machine and remove key.
2.
Loosen the two bolts on the chain tension plate.
3.
Slide the plate to adjust tension.
4.
Tighten chain tensioner mounting bolts.
