MAINTENANCE/SERVICE – M150 ENGINE
Form # 169017 142 Issue – June 2008
c. Loosen compressor mounting hardware (B) and
push compressor towards engine to release belt
(A) tension.
d. Remove belt (A).
e. Insert the drive end of a ½ inch drive ratchet
wrench into the belt tensioner (C).
f. Rotate tensioner counterclockwise until fan belt
(D) can be slipped off pulley (E). Release
tensioner and remove wrench.
g. Remove belt in order 1-2-3 as shown. Route fan
belt around fan and remove belt.
h. Install new belt (D) around fan and onto pulleys
in order 3-2-1.
i. Insert the drive end of a ½ inch drive ratchet
wrench into the belt tensioner (C).
j. Rotate tensioner counterclockwise until belt (D)
can be slipped onto pulley (E). Release
tensioner and remove wrench.
k. Check that belt is properly seated in all pulley
grooves.
l. Install A/C compressor belt (A) on pulleys.
m. 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.
n. Tighten compressor mounting hardware (B).
o. Recheck tension and re-adjust as required.
p. Move maintenance platforms to working position
and close engine compartment hood.
C
E
3
2
1
D
B
A
B
A
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