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Grease Fittings
The PT-100 Forestry is equipped with grease fittings at
pivot points throughout the machine. The illustration
above shows the location of all fittings on the left side
of the machine. An identical fitting exists on the right
side of the machine for each identified in the illustra-
tion. Lubricate all fittings daily or after every 10 hours
of operation to ensure proper operation and maximize
component life. (fig. 11-1)
Undercarriages
The undercarriage assemblies in the PT-100 Forestry
typically operate in harsh working conditions. They
work in mud, gravel, debris and various other abrasive
materials during operation. Terex recommends a daily
inspection of the undercarriage assemblies and clean-
ing if necessary.
Materials that are particularly sticky or abrasive like
clay, mud, or gravel should be cleaned from the under-
carriages more often to minimize component wear. A
pressure washer works well for cleaning materials from
the undercarriages. At times when a pressure washer
is not available, use a bar, shovel or similar device to
remove foreign materials.
When cleaning, pay particular attention to the drive
motors/sprockets and the front and rear wheels where
debris is likely to accumulate. If working in scrap or
debris, inspect more often and remove foreign objects
that may wrap around or lodge themselves between
components causing premature wear and damage.
Operating the PT-100 Forestry in loamy sand or on turf
or other finished surfaces may require less frequent
cleaning, but daily inspection is still advised.
Track Tension
Proper track tension must be maintained for optimal
performance and track/undercarriage life. Running a
track that is too loose may cause the track to misfeed
possibly causing damage to the track and or undercar-
riage components. Running a track that is too tight
may cause track stretch, premature bearing failure, or
other preventable damage to the machine. As a rule, a
track should only be tightened to the point where there
is no visible sag. Never tighten the tracks beyond this
point.
Note: During the first 50 hours of operation the tracks will
"break-in" and will most likely require adjustment.
To check track tension:
1. Drive the machine forward 5 feet ( 1.5 m) to
remove any slack from the lower and rearward
portions of the track.
2. Lay a straight edge along the top of the track
bridging the drive sprocket and front idler wheel.
3. Apply 90 lbs (41 kg). of down force to the the track
by either placing weight on top or hanging it using
rope or wire midway between the drive sprocket
and front idler.
4. Measure from the bottom of the straight edge to
the lug surface (top) of the track. The deflection
should measure between ¾" ( 1.9 cm) and 1" ( 2.5
cm) if properly adjusted. (fig. 11-2)
11-3
Compact Track Loader
11. Maintenance
11-1
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