TM 11-4920-209-15-1
dip a piece of wire into the grease and apply
compound. If dirt is difficult to remove, use
it around the stud (29, fig. 3-1) and to sides of
mild soap if necessary.
the trunnions (19 and 20, fig. 3-1) where the
stud rides.
Remove rust and corrosion from metal sur-
c. To grease the table bearing, apply grease
faces by lightly sanding them with fine sand-
with a grease gun through the grease fitting
paper. Brush two thin coats of paint on the
(35, fig. 3-1).
bare metal to protect it from further corro-
sion. R e f e r to applicable cleaning and
refinishing practices specified in TM 9-213.
Troubleshooting this equipment is based upon
the operational check contained in the daily
3-10. lubrication
preventive maintenance checks and services
a. Lubrication of the tilt head trunnions
chart. To troubleshoot this equipment, perform
must be performed each month and the table
all functions starting with item number 4 in
bearing every six months. A month consists
the daily preventive maintenance checks and
of 30 days of normal 8-hour operation. When
services chart (para 3-5) and proceed through
the equipment is operated more than 8 hours
the items until an abnormal condition or result
a day, adjust the lubrication intervals accord-
is observed. When an abnormal condition or
ingly. For example, when the equipment is
result is observed, note the item number and
operated 16 hours a day instead of 8, lubricate
turn to the corresponding, item number in the
the equipment every 15 days instead of every
troubleshooting chart (para 3-12). Perform
month.
the checks and corrective actions indicated in
b. To apply grease to the tilt head trunnions,
the troubleshooting chart.
3-13. Repair
is replaced, refer to the schematic diagram
When repair of the equipment is necessary,
refer to figure 3-1. If an electrical component
Previous Page
