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SECTION 4 —MAINTENANCE
4.1 GENERAL
Maintenance personnel responsible for the upkeep of this equipment should possess a
basic understanding of the equipment and normal sequence of operation. Refer to Sec-
tions 1 and 3 of this manual.
Maintenance discussed in this section is divided into two parts — Preventive Mainte-
nance and Corrective Maintenance (Trouble Shooting).
Preventive Maintenance consists of those routines which keep the equipment in proper
working condition. Preventive Maintenance is not only desirable, but is necessary, since
routine inspection will ensure continued trouble-free operation of the equipment and pre-
vent, or at least detect at an early stage, mechanical or hydraulic troubles that might
otherwise develop into equipment malfunction.
Corrective Maintenance (Trouble Shooting) is the examination and repair or replacement
of the part or parts of the equipment that resulted in equipment malfunction.
4.2 SAFETY PRECAUTIONS
WHEN ANY REPAIRS OR ADJUSTMENTS ARE MADE AND BODY
IS FULLY OR PARTLY RAISED, BODY MUST BE BLOCKED SE-
CURELY SO IT CANNOT FALL.
4.3 SUGGESTED PREVENTIVE MAINTENANCE PROGRAM
Suggested preventive maintenance checks are listed below.
Perform These Checks Monthly
1) Check bolt tightness at shear bolt at rear, hinge pins, both ends of lever arm shaft,
upper and lower link pins, cylinder upper and lower pins, hold downs, PTO, pump,
cab control and drive line bearing. Self locking nuts are used throughout unit, and
any time a replacement is needed, it must be replaced with an equal part.
2) Inspect drive line for possible wear and check set screws for tightness and lock
wire in position.
3) Check oil level in cylinder for correct height. See Section 2.9.
4) Check color of oil for possible contamination. If oil appears thick or dirty, drain sys-
tem and replace. See Section 4.5 for proper type oil.
5) Check for oil leaks in all hydraulic fittings and hoses. Retighten fittings and replace
hoses as necessary.
CAUTION
