UNIT MAINTENANCE PREVENTIVE MAINTENANCE CHECKS AND
SERVICES (PMCS) - CONTINUED
Table 1. Unit Maintenance Preventive Maintenance Checks and
Services (PMCS) for the D7F Tractor - Continued.
Inspect equalizer bar for cracks, bends, breaks and loose or
missing mounting hardware.
Inspect track roller guards for cracks, bends and wear.
Inspect the following components: track roller frame, idlers,
track rollers, track carrier rollers and sprockets. Replace compo-
nents that are damaged or worn beyond acceptable limits (WP
Check recoil spring and track adjuster cylinder for damage or
external leakage of grease. Replace as needed (WP 0113 00 or
Inspect for damage or wear to track links and bushings. Inspect
for cracked or missing track shoes. Replace any component that
is broken, cracked, missing or worn beyond acceptable limits.
The D7F uses two types of tracks: The Caterpillar
"branded track" (identified by a Caterpillar logo) and the
"classic track" (identified by a pictorial symbol of a track
link). Inspection criteria and maintenance of both styles of
tracks are the same. However, components of these tracks
are NOT completely interchangeable. Before maintenance
and requisitioning of parts, verify the type of track on the
tractor and proceed accordingly.
Check and adjust track tension if necessary (WP 0120 00).
Follow routing of lines, hoses and tubing for hydraulic system.
Inspect for loose fittings, cracks, bends, breaks and leaks.
Inspect blade lift cylinders and tilt cylinder and cylinder hydrau-
lic lines for secure mounting, loose fittings and leaks.
If equipped with ripper, inspect ripper lift cylinders and cylinder
hydraulic lines for secure mounting, loose fittings and leaks.
If equipped with winch, inspect winch hydraulic lines for secure
mounting, loose fittings and leaks.
If wear to cuttings edge and end bits is sufficient to cause
wear to blade support, change cutting edge and install new
Inspect cutting edge and end bits for damage, wear or loose or miss-
ing mounting hardware. Change cutting edge if damaged or worn to
less than 3/4 in. (19 mm) (WP 0169 00). Install new end bits if worn/
damaged (WP 0169 00).