Midland SIDE DUMP GRAVEL TRAILER Operator's Manual page 94

PROBLEM
Air System
Excessive compressor
cycling.
Trailer brakes slow and
sluggish.
82
CAUSE
Air leak.
System or component failure.
SOLUTION
Check air line fittings and hose
connections on service or supply
line.
Check service chamber at clamp
housing, push rod for damage.
Check service chamber diaphragm.
Check emergency chamber clamp
and vent holes for leakage.
Repair or replace air chamber as
required.
Check FFVII brake valve. Repair or
replace as required.
Check slack adjuster and chamber/
spring brake push rod alignment for
interference.
Assure slack adjuster and
chamber/spring brake push rod
angle 90° applied with proper
adjustment.
Assure open lines - no kinks,
bends, closed shut-off cocks,
restrictions, excessive elbows.
Assure adequate tractor brake
function.
Have authorized service center
check for adequate pressure and
timing balance relative to tractor/
trailer application.