BRAKES (CONTINUED)
SYMPTOM
PROBLEM: REMEDY
IN SUF FI CIENT BRAKES
Brakes need ad just ing:
ad just brakes.
Brakes need lu bri cat ing:
lu bri cate brakes.
Brakes need re lin ing:
re line brakes.
Low air pres sure:
trou ble shoot air sys tem.
De fec tive re lay emer gency valve:
re pair or re place.
Brakes over heated:
stop and al low brakes to cool, lo cate
cause of over heat ing.
BRAKES GRAB BING
Grease on brake lin ings:
re line brakes.
Brake rig ging bind ing:
align brakes or re place bent parts.
De fec tive brake valve on trac tor:
re pair or re place valve.
De fec tive re lay emer gency valve:
re pair or re place valve.
EX CES SIVE LEAK AGE WITH
BRAKES RE LEASED
Re lay emer gency valve leak ing:
re pair or re place valve.
Leak ing tub ing or hose:
re place de fec tive part.
EX CES SIVE LEAK AGE WITH
BRAKES AP PLIED
Re lay emer gency valve leak ing:
re pair or re place valve.
Leak ing brake cham ber dia phragm:
re place dia phragm.
Call Fac tory or see quali fied Trailer/Brake Tech ni cian
Leak ing tub ing or hose:
re place de fec tive part.
EX CES SIVE LEAK AGE WITH
EMER GENCY SYS TEM ONLY
AP PLIED - NO LEAK AGE WITH
NOR MAL BRAK ING
De fec tive re lay emer gency valve:
re pair or re place valve.
EX CES SIVE WA TER PRE SENT IN
BRAKE SYS TEM
Res er voir not drained of ten enough:
drain res er voir daily.
EX CES SIVE OIL PRE SENT IN
BRAKE SYS TEM
Com pres sor on trac tor pass ing ex ces sive oil:
re pair com -
pres sor.
BRAKE WILL NOT AP PLY
PROP ERLY
Flat spot on cam roller or cam shaft:
re place and lu bri cate.
BRAKES WILL NOT AP PLY
WHEN EMER GENCY LINE IS
DIS CON NECTED
Ini tial air pres sure too low:
al low air sys tem to build up to
mini mum 90 PSI and sta bi lize.
De fec tive re lay valve:
re pair or re place valve.
Air line leak:
lo cate leak and re pair.
Brake cham ber leak:
lo cate leak and re pair or re place.
ABS WARN ING LIGHT STAYS
ON
Re fer to Rock well WABCO ABS main te nance man ual sup -
plied with semi trailer, for sys tem func tion and use of blink
code di ag nos tics.
5-5
Summary of Contents for 318C
Page 3: ...MODELS 318C BOEING TRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i...
Page 8: ......
Page 12: ......
Page 32: ...3 20 FIGURE 3 6 STEPS FOR LOADING AND UNLOADING...
Page 36: ...3 24 FIGURE 3 8 REAR IMPACT GUARD AND ANTILOCK BRAKE SYSTEM...
Page 52: ...4 14 FIGURE 4 6 CHECKING AXLE ALIGNMENT FIGURE 4 7 EXAMPLES OF CAMBER...
Page 56: ...4 18 FIGURE 4 10 AXLE AND BRAKE ASSEMBLY...
Page 64: ...4 26 FIGURE 4 16 MOUNTING TIRES AND WHEELS FIGURE 4 17 STUD TIGHTENING SEQUENCE...
Page 76: ...5 10 NOTES...
