MacDon M100 SP Operators Manual - Manual (Page 134)

MAINTENANCE/SERVICE
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132
Rev. C
57.6.8 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.
57.6.8.1 Fan Belt Tension
a. Shutdown engine and open engine compartment
access hood to lowest position.
b. Loosen alternator mounting hardware (A).
c. Pry alternator away from engine so that a force
of 22 lbf (100 N) deflects belt (B) 5/16 to 1/2 inch
(8 to 12 mm) at mid-span between fan pulley
and alternator.
CAUTION
Overtightening the belt will result in
alternator damage.
d. Tighten alternator mounting hardware (A).
e. Recheck tension and re-adjust as required.
57.6.8.2 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. Loosen compressor mounting hardware (C) and
push compressor towards engine to release belt
(D) tension.
c. Remove belt (D).
d. Loosen alternator mounting hardware (A) and
push alternator towards engine to release belt
(B) tension.
e. Remove belt (B).
f. Install new belt (B) on pulleys.
g. Pry alternator away from engine so that a force
of 22 lbf (100 N) deflects belt (B) 5/16 to 1/2 inch
(8 to 12 mm) at mid-span between fan pulley
and compressor.
h. Tighten alternator mounting hardware (A).
i. Recheck tension and re-adjust as required.
j. Install A/C compressor belt (D) on pulleys.
k. Pry compressor away from engine so that a
force of 8 to 12 lbf (35-55 N) deflects the belt (D)
3/16 inch (5 mm) at mid-span.
l. Tighten compressor mounting hardware (C).
m. Recheck tension and re-adjust as required.
n. Close engine compartment hood.
B
A
C
D