tool boxes (6 and 23) over their supports, and install the cap screws (26) and nuts (30). Place the mud guards (7) in
position and install the cap screws (5), plain washers (4), and nuts (3). Install the rear door braces (24). Install the engine-
compressor unit (par. 215).
Section XIV. UNIT SPRING MOUNTING
230. Description
The engine-compressor unit is mounted on four spring mountings. These mountings isolate the equipment to prevent
vibration while operating or moving the equipment.
231. Spring Mounting Removal
Remove the nuts (1), washers (2), vibration dampeners (3), and cap screws (6). Lift the engine-compressor from the
truck frame (par. 214). Lift off the plates (5). Take out the cap screws (16) with washers (15) and lift out the spring
assemblies. Unscrew the nuts (14) and remove the lockwashers (13). Lift off the bumpers (11) and separate the spacers
(9 and 10) and plates (7 and 8) from the springs (4). Do not unscrew the stud. (12).
232. Spring Mounting Cleaning and Inspection
Clean the mounting assembly parts in carbon tetrachloride or similar solvent, except the bumpers and vibration
dampeners. Clean off all rust or corrosion with steel wool or a buffing wheel. Inspect all parts for breaks or cracks.
Replace any damaged springs, spacers, or plates. Wash the bumpers and vibration dampeners in water. Dry thoroughly.
Inspect them for flaws or nicks. Replace any bumper or vibration dampener that shows any sign of weakness. Repaint as
instructed in paragraph 43.
233. Spring Mounting Installation
Place one spring plate (7) on each of the truck frame brackets. Set the springs (4), the other spring plates (7), and
plates (8) with stud (12) on the springs. Put the flat washers (15) on the cap screws (16), insert the cap screws through
the springs, and screw them into the plates. Put the spacers (9 and 10) and the bumpers (11) over the stud. Install the
lockwashers (13) and hex nuts (14). Put the plates (5) on the springs. Lower the engine-compressor to the truck frame
(par. 215). Insert the cap screws (6) through the springs. Install a washer (2) on
246