Takeuchi TB1160W, Operator'S Manual

Page: 198 / 297

5-32
MAINTENANCE
AFTER THE INITIAL 50 HOURS (ONLY FOR NEW MACHINES)
INSPECTING AND ADJUSTING THE
COMPRESSOR BELT (AC)
• Stop the engine and allow each part of
the machine to cool down before
performing maintenance.
· The engine, the hydraulic system and
many other parts of the machine are
hot immediately after the engine is
stopped. Touching these parts will
cause burns.
• The high-pressure pipes of the air
conditioner can be very hot (80 to 120°C
or 176 to 248°F). Be careful not to burn
yourself.
• Before performing maintenance on the
top of the machine, clean the place you
will work on and observe the following
to prevent falling.
· Do not spill oil or grease.
· Do not leave tools scattered around.
· Watch your step when walking.
• Never jump down from the machine.
Use the steps and handrails when
climbing up and down the machine, and
always support your body at three
points with your hands and feet.
IMPORTANT: Do not let any oil or grease
get on the belt. It will cause the belt to
slip, decrease the cooling capacity or
shorten the service life of the air
conditioner.
If the belt is too slack, it will slip and vibrate,
resulting in decreased cooling capacity. The
service life of the air conditioner also will be
shortened. Adjust the belt tension to the
standard value (approximately 8 mm or 0.31
in).
Inspection
1. Open the engine hood.
2. Press on the center of the belt (1) with a
finger. The belt tension is normal if the
slack in the belt is 8 mm (0.31 in.) when
pressed with a force of 98 N (22 lbs).
Adjustment
If the belt tension is not normal, adjust it with
the adjuster bolt (2).
1. Loosen the locking nut (3) and bolts (4).
2. Turn the adjuster bolt (2) as follows.
· Tighten: Clockwise
· Loosen: Counterclockwise
3. Tighten the locking nut (3) and bolts (4)
after adjustment.
Note: When replacing with a new belt, run
the engine at low idle speed for about 3 to 5
minutes to break in the new belt, before
adjusting the tension again.
Replacing
Replace the belt in the following cases:
· There are cuts or cracks.
· The belt is worn and touches the bottom of
the V groove in the pulley.
· The belt stretched too loose to be
adjusted.