TM 5-3820-241-34
MAINTENANCE OF THE FEED SYSTEM COMPONENTS
Section I. FEED MOTOR
5-1. General
(1) Position the rock drill boom in the
horizontal position.
The rock drill feed motor is a four cylinder,
(2) Disconnect the air supply at the
reversing air powered motor, driven through a
l u b r i c a t o r fitting, o p e n the blow handle and
1 6 : 1 reduction transmission attached to a
release all air from the system.
sprocket chain drive. The motor pulls the drill up
(3) Remove the feed motor in numerical
or down along the feed assembly.
sequence as illustrated in figure 5-1.
5-2. Feed Motor Removal and Disassembly
a. Removal.