Table 2-4. Preventive Maintenance Checks and Services for Miscellaneous Equipment (Cont)
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
Make sure that all chucks, adjusting
keys, or wrenches are removed from
drills, grinders, or other power tools
before turning these tools ON.
g. Make sure that the item being drilled,
ground, pressed, or welded is being held
securely in place.
h. Check that indicator lights are operating
properly. Replace bulbs as necessary.
With welder started, but before welding,
rotate current control through its entire
range to lessen the possibility of contact
Check that arc welder electrode and
work connections are tight. Tighten as
Grinding wheels can explode if they
have received minor cracks when
When starting a grinder for the first
time or after installing a replacement
wheel, the operator must stand to
one side of the grinder for 1 minute
after turning it ON.
k. Check grinder wheel for wear. Replace
Grinder wheel is
after diameter is reduced to 2 inches
reduced to 2 inches
below original size.
below normal size.
Check safety guard and vacuum bag for
proper operation. Repair or replace as
missing or inoper-
m. Remove rust or corrosion. Touch up
paint in accordance with TB 43-0144.
a. Visually check accesses for damage or
defects which could impair effectiveness
and operability of doors, hatches, or port-
holes, etc. Repair as necessary.
b. Remove rust and corrosion. Touch up
paint in accordance with TB 43-0144 as
necessary. DO NOT paint threads or