MAINTENANCE
WHEN REQUIRED MAINTENANCE
AND
CHECKS
17VX3
WHEN REQUIRED
TRACKS
CHECK
I
ADJUST
~-------
----------.,..
* Grease is under high pressure.
* NEVER remove the grease fitting.
* Grease coming out
of
the check valve under pressure
can penetrate the body causing injury
or
death.
* DO NOT watch the check valve to see if grease is
escaping. Watch the track
or
track adjustment cylinder to
see if the track
is
being loosened.
* Loosen the check valve one turn only.
• Measuring
Track
Tension
1.
Position bucket to the sprocket side. Use boom and blade
down pressure to lift the track on both side off the ground.
2.
Measure the maximum amount
of
the track sag from the shoe
upper face to the roller face. Properly adjusted track will have
approximately 10 to 20 mm slack with rubber shoes.
In
case
of
steel shoes, approximately 30 to 50 mm.
•
Track
Tightening
1.
Add grease through check valve fitting
CD
until the correct
track tension is reached.
2.
Move the tracks forward and reverse to equalize the pressure.
3.
Check the amount
of
track sag again and adjust as necessary.
•
Track
Loosening
1.
Remove soil deposited on front idler bearing.
2.
Loosen the check valve ~ carefully (one turn maximum) until
the track begins to loosen.
3.
Tighten the check valve
~
to 59 to 69
Nem
(6 to 7 kgfem)
when the desired track tension is reached. NEVER over
tighten the check valve.
4.
Move the tracks forward and reverse.
5.
Check the amount
of
track sag again and adjust as necessary.
If the correct adjustment cannot be obtained, consult your IHI
dealer.
4-4-1
Suported
the
machine
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