MAINTENANCE/SERVICE – M150 ENGINE
Form 169017 141 Issue – June 2008
7.9.10 Belts
DANGER
Stop engine and remove key from ignition
before leaving operator's seat for any
reason. A child or even a pet could engage
an idling machine.
7.9.10.1 Tension
a. The alternator, water pump, and fan belt are
automatically tightened and manual adjustment
is not required.
b. Tension A/C compressor belt (A) as follows:
1. Shutdown engine and open engine
compartment access hood to lowest
position.
2. Loosen compressor mounting hardware (B).
3. Pry compressor away from engine so that a
force of 8 to 12 lbf (35-55 N) deflects the belt
(A) 3/16 inch (5 mm) at mid-span.
4. Tighten compressor mounting hardware.
5. Recheck tension and re-adjust as required.
7.9.10.2 A/C Compressor Belt Replacement
a. Shutdown the engine and open engine
compartment access hood to lowest level. Refer
to illustration opposite.
b. Loosen compressor mounting hardware (B) and
push compressor towards engine to release
tension.
c. Remove belt (A).
d. Install new belt (A) on pulleys.
e. Pry compressor away from engine so that a
force of 8 to 12 lbf (35-55 N) deflects the belt (A)
3/16 inch (5 mm) at mid-span.
f. Tighten compressor mounting hardware (B).
g. Recheck tension and re-adjust as required.
7.9.10.3 Fan Belt Replacement
DANGER
Stop engine and remove key from ignition
before leaving operator's seat for any
reason. A child or even a pet could engage
an idling machine.
a. Shutdown the engine and open engine
compartment access hood to highest position.
b. Move both maintenance platforms to rear (cab-
forward) of tractor.
(continued next page)
B
A
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