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5
5.
PLANNED MAINTENANCE
Refer to the basic PDM Manual No. 901356 Chapter 3
for basic planned maintenance procedures.
indicates additional planned maintenance tasks which
should be performed on a quarterly basis. These
maintenance procedures should be performed only by
qualified service personnel.
Table 2. VISUAL CHECKS
ITEM
PROCEDURE
Check all fluids and lubrication points.
Refer to PDM manual paragraph 3-4
Check lift chains
Check for damage and adjustment. If adjustment is necessary refer
to PDM manual Chapter 8
Check sheaves and bearings.
Check for damage or binding.
Check cable in pivot tube.
Check for excessive wear around spring tube assembly and where
cable exits pivot tube.
Check brake linkage and pads for wear.
Refer to PDM manual Chapter 6 to replace worn linkage or pads.
Check lift cylinder for leakage.
Raise cylinder to fully elevated position. Disconnect drain line and
observe amount of oil coming from cylinder fitting. If more than a
couple of drops of oil is forced out of gland, change packing. Refer
to
Check hydraulic system filter and breather.
Replace if dirty.
