25-4. AXLE NO. 1 AND 2 AIR BRAKE CHAMBER REPLACEMENT (CONT).
Adhesives, solvents, and sealing
compounds can burn easily, can
give off harmful vapors, and are
harmful to skin and clothing. To
avoid injury or death, keep away
from open fire and use in well-
ventilated area. If adhesive,
solvent, or sealing compound
gets on skin or clothing, wash
immediately with soap and
Coat first three threads of air brake
chamber (6) with sealing compound.
Install air brake chamber (6) into brake assembly (7) until air brake chamber bottoms out in brake
Air brake chamber can only be unscrewed a maximum of one turn. Otherwise, incorrect
brake operation could result.
Rotate air brake chamber (6) to align air ports.
Using spanner wrench, tighten collet nut (5) to 250 to 280 lb-ft (339 to 380 N.m).
Perform Step (h) only if fittings were removed.
Coat threads of two fittings (3) and (4) with sealing compound.
Install fittings (3) and (4) in air brake chamber (6).
Refer to Table 25-1 for air line numbers.
Install air lines (1) and (2) to air brake chamber fittings (3) and (4).