Bobcat 328 - S/N 234211001 Operations Instructions download pdf (Page 103)

325/328 Excavator

81 Operation and Maintenance Manual

TRACK TENSION

NOTE: The wear of the pins and bushings on the

undercarriage vary with the working

conditions and the different types of soil

conditions. It is necessary to inspect track

tension and maintain the correct tension. See

the SERVICE SCHEDULE for the correct

service interval. (See SERVICE SCHEDULE on

Page 59.)

Figure PM-41

Raise one side of the machine approximately 100 mm

using the boom and arm [Figure PM-41].

Raise the blade fully and install jackstands under the

blade and track frame (Item 1) [Figure PM-41]. Lower the

boom until all machine weight is on the jackstands.

Stop the engine.

WARNING

AVOID INJURY

Keep fingers and hands out of pinch points when

checking the track tension.

W-2142-0903

Rubber Track Clearance

Figure PM-42

Figure PM-43

Measure the clearance at the middle track roller. Do not

get fingers into pinch points between the track and the

track roller. Use a bolt or a dowel of the appropriate size to

check the gap between the contact edge of the roller and

the top edge of the track guide [Figure PM-42] and

[Figure PM-43].

Rubber Track Clearance - 10-15 mm.

P-49460

P-49187

10-15 mm

B-14067

Track Frame

10-15 mm

Track

Roller

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Bobcat 328 - S/N 234211001 Operations Instructions Page 103