MacDon M155 - Page 383

MAINTENANCE AND S ERVICING
Tensioning Air Conditioner (A/C) Compressor Belt
DANGER
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove
the key from the ignition before leaving the operator ’s seat for any reason.
1. Shut down the e ngine and re move the key.
2. Open the hood, refer to 5.2.1 Opening Hood (Lower
Position), page 306.
3. Loosen compressor mounting hardware (B).
4. Pry compressor away from engine so that a force of
8–12 lbf (35–55 N) deflects the belt (A) 3/16 in. (5 mm)
at mid-span.
5. Tighten compressor m ounting hardware (B).
6. Recheck tension and readjust as required.
7. Close the hood, refer to 5.2.2 Clo sing Hood (Lower
Position), page 307.
Figure 5.115: A/C Compressor
Replacing Air Conditioner (A/C) Compressor Belt
DANGER
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove
the key from the ignition before leaving the operator ’s seat for any reason.
1. Shut down the engi
ne and remove the key.
2. Open the hood. Ref
er to 5.2.1 Opening Hood (Lower Position), page 306.
3. Loosen compress
or mounting hardware (B) and push
compressor t ow a
rds engine to release tension.
4. Remove belt (A) f
rom compressor.
5. Install new com
pressor belt (A).
6. Pry compressor
away from engine so that a force o f
8–12 lbf (35–55
N) deflects the belt (A) 3/16 in. (5 mm)
at mid-span.
7. Tighten compre
ssor moun tin g hardware (B).
8. Recheck tensi
on and readjust as required.
9. Close the hood
, refer to 5.2. 2 Closing Hood (Lower
Position), p a
ge 307.
Figure 5.116: A/C Compressor
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