DRESSTA TD-25M EXTRA, Руководство по обслуживанию, Страница: 500 / 595

SECTION 14
SUSPENSION
Page 6
TD-25M EXTRA DRESSTA
GENERAL
COMPLAINT
PROBABLE CAUSE REMARKS
Lubricant Leakage
1. Leakage at track roller Remove track roller and repair.
2. Leakage at track idler Remove, inspect and replace defective parts.
3. Leakage at front idler Remove the front idler, and make necessary
repairs.
4. Leakage at pivot shaft Remove, inspect and repair or replace defective
parts.
Front Idler Does Not Turn
1. Insufficient lubrication Use correct amount of lubricant.
2. Mud packed around idler Remove the mud.
Top Idlers Do Not Turn
1. Insufficient lubrication Use correct amount of lubricant.
2. Mud packed against idler Remove the mud.
3. Internal seizure Remove, inspect, clean and replace
if necessary.
Track Rollers Do Not Turn
1. Work in mud conditions with roller shield Remove shield.
2. Insufficient lubrication Use correct amount of lubricant.
3. Bushings seized Remove faulty roller and replace bushing.
4. Packed dirt between roller and track frame Remove packed dirt and check lubrication of
roller.
Machine Loses Power
1. Track chains too tight Adjust track chains. Tight track chains will cause
machine to lose up to 75 percent of horsepower.
Track Shoe Bolts Break
1. Bolts not properly tightened Tighten bolts to proper torque.
2. Bolt head snap off Track shoes out-of-flat. Replace track shoes.
5. CHECKING UNDERCARRIAGE WEAR
WARNING! Before working at the machine, be sure that the blade and ripper have
been lowered to the ground, engine is OFF, the drive train neutral lock lever is in
locked (ON) position and parking brake is set. The starting switch and the electrical
system master switch are turned OFF, keys are removed and the controls are
tagged to prevent inadvertent engine starting.
Undercarriage components have a certain dimension when new. As wear occurs the dimension will
decrease (or increase in the case of track pitch and front idler flange height) until a decision must
be made whether to rebuild or recondition components, replace them or run them
to destruction. The 100 [%] dimension is the dimension of the component when an new.
The 0 [%] dimension is the point at which either maintenance must take place or the components
run to destruction. Before inspecting an undercarriage, the track tension on both sides must be
tightened. To do this, blocks of wood or metal should be placed in the sprocket tooth under the
track chain as shown in Fig. 14.2. The machine should then be moved backward so the sprocket
can grab the block and tighten the chain. This pulls the chain tight and up off the top idler.