MAINTENANCE OF THE FEED SYSTEM COMPONENTS
Section I. FEED MOTOR
(1) Position the rock drill boom in the
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.
5-2. Feed Motor Removal and Disassembly