TM 5-3895-371-24 & P
CHAPTER 8
REPAIR OF BITUMETER AIR CHAMBER
8-1. Disassembly. (Refer to para 2-23 for removal instructions.)
a.
Remove clamp (fig. 8-1) that fastens chamber cap and chamber base together by removing
two capscrews and nuts.
b.
Pry clamp off of chamber.
c.
Lift off chamber cap and remove diaphragm, spring and piston.
8-2. Reassembly.
a.
Clean assembly, except diaphragm, in dry cleaning solution.
b.
Inspect diaphragm for cracks or tears. Replace if defective,
c.
Assemble piston, spring and diaphragm in chamber base.
d.
Press down on top of piston to compress the spring; then clamp the piston rod in a vise to
hold the spring in the compressed position.
e.
Install chamber cap and clamp.
f.
Fasten clamp securely with two capscrews and nuts.
8-1
