TM 5-3820-241-34
MAINTENANCE OF THE ROCK DRILL
CRAWLER AND CARRIER
Section I. TRAMMING MOTOR
6-1. General
b. Disassembly.
(1) Disassemble the tramming motor in
The pneumatic rock drill is equipped with two, 11
numerical sequence as illustrated in figure 6-1.
horsepower, 5 cylinder reversing air motors used
to power the drill carrier through two 35:1 gear
reduction transmissions.
6-2. Tramming Motor Removal and Disassembly
a. Removal. Remove the tramming motor