Table 2-4. Preventive Maintenance Checks and Services for Handling Equipment (Continued)
Q - Quarterly
S - Semiannually
A - Annually
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A D W M Q S A
a. Visually inspect hooks, cables, and
Hooks, cables or
chains for damage. Make sure crane and
hoist cables and chains are properly
secured, and clean. Avoid overloads.
b. Check cables and chains for fraying,
bends, kinks, or loose connections.
Repair, replace or tighten as necessary.
c. Check pendant control cable for cuts or
Cable has cuts or
abrasions that might lead to electrical
shorts on controls.
d. Check hoisting hook for wear, heavy
Hook does not
nicks, cracks, or bends. Make sure hook
turns freely and that latch has freedom of
a. Check interlocks are set properly for
b. Check brakes frequently. If brakes do not
Brakes do not
hold when lifted a few inches, do not use
equipment until brakes are adjusted.
c. Avoid bumping safety stops and protec-
tive stops. Use for emergency stop only.
d. Check rotating friction disc for wear
Wear is 1/16 inch.
adjustment. Adjust as necessary or
replace if total wear is 1/16 in.
e. Visually check brake assembly and man-
ual release for broken or damaged parts.
Replace or repair as required.
Clean brake magnet faces if dirty. Insert
clean sheet of paper between magnet
faces and energize brake. Move paper
around between magnet faces to dis-
lodge dirt. Remove paper.