MAINTENANCE
186E MM160 (6–94)
3Ć24
TO REPLACE VACUUM FAN BELT
1. Turn off the machine and set the machine
parking brake.
FOR SAFETY: Before Leaving Or Servicing
Machine; Stop On Level Surface, Set Parking
Brake, And Turn Off Machine.
2. Remove the rear panel.
3. Loosen the vacuum fan belt.
4. Slide the belt off the sheaves.
5. Position the new belt on the motor sheave
and the vacuum fan sheave.
6. Adjust belt tension as described in TO
CHECK AND ADJUST VACUUM FAN BELT
TENSION.
7. Replace the rear panel.
WHEEL DRIVE CHAINS
The two wheel drive chains transfer power from
the differential to the drive wheels. Lubricate the
chains with a penetrating-type spray lubricant
after every 100 hours of operation.
Check the chains for wear or damage and tension
after the first 50 hours of operation and then after
every 100 hours of operation. The wheel drive
chains should have 0.5 in (15 mm) slack
measured midway between the sprockets.
C
B
A
D
03139
WHEEL DRIVE CHAIN
A. Adjustment Bolts
B. Sprocket
C. Chain
D. Adjustment Block
STATIC DRAG CHAIN
A static drag chain is provided to prevent the
buildup of static electricity in the machine. The
chain is attached to the machine by a rear brush
skirt mounting bolt.
Check the chain for wear periodically. Make sure
it is making contact with the floor at all times.