Tennant 1186E, Operator'S Manual

Page: 46 / 70

MAINTENANCE
1186E MM268 (6–94)
3Ć14
BELTS AND CHAINS
PROPELLING BELTS
The propelling belts transfer power from the motor
to the machine differential. Check the belts for
wear and tension after every 50 hours of
operation.
TO CHECK AND ADJUST PROPELLING BELTS
TENSION
1. Park on a level surface. 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 access cover, and right side
bumper and cover.
3. Observe the position of the clutch plate bolt
with no pressure on the clutch handle. It
should be approximately in the center of the
slot.
4. Pull the clutch handle to tighten the forward
propelling belt. The clutch handle should be
0.25 to 0.50 in (7 to 13 mm) from the
stationary handle. Observe the position of
the clutch plate bolt. It should not touch the
end of the slot. If the handle and bolt are in
the proper position, skip to step 8; if not,
continue with step 5 to readjust forward belt
tension.
A
B
C
D
H
G F
E
I
03151
PROPELLING BELTS
A. Motor
B. Clutch Plate
C. Clutch Plate Bolt
D. Bolt Slot
E. Forward Belt Idler Sheave
F. Reverse Propelling Belt
G. Forward Propelling Belt
H. Reverse Belt Idler Sheave
I. Belt Guide
5. Loosen the forward idler sheave bolt and
slide the idler sheave down to tighten the
belt (this also increases distance between
clutch handle and stationary handle); slide
the sheave up to loosen the belt (this also
reduces distance between clutch handle and
stationary handle).
6. Tighten the idler sheave bolt.
7. Recheck handle and bolt positions. Repeat
as necessary to adjust belt tension.
NOTE: After adjusting the forward belt, it may
contact the belt guide when engaged causing a
whining noise. To stop the noise, bend the guide
up out of the belt’s way.
8. Press the clutch reverse handle to tighten
the reverse propelling belt. Observe the
position of the clutch plate bolt. It should not
touch the end of the slot. If the bolt is in the
proper position, skip to step 12; if not,
continue with step 9 to readjust reverse belt
tension.