SERVICE MANUAL
sometimes corrected by tightening the connector nut, but if
this fails, replace the connectors or hose, or both.
MAINTENANCE
Every six months all air connections should be checked and
tightened if leaking (refer to SERVICE CHECKS). Once each
year all tubing and hoses should be inspected for dents, kinks,
swelling, chafing or crimping. Replace tubing if these conditions
are found.
Be sure to inspect trailer brake hoses and hose coupling
packing rings and replace if necessary.
SERVICE CHECKS
Operating Tests
If any evidence is found that an air line is restricted, remove
and blow out through it in both directions to be sure the passage
through the tubing is not obstructed in any way. Inspect piping for
partial restrictions such as may be caused by dents or kinks.
Damaged pipes must be replaced.
Leakage Tests
With the air system fully charged, the governor cut out and
brakes applied, use SE-2326 Leak Detector Tester at air lines,
hoses and fittings to check for leakage. No leakage is
permissible. Leakage at a tubing fitting is sometimes corrected
by tightening the fitting nut. If this fails to correct the leakage,
replace the tubing, sleeve or fitting, the tubing or hose.
CTS-4079 - CHAPTER XII - Page 7
