HYDRAULIC SYSTEM (CONTINUED)
SYMPTOM
PROBLEM: REMEDY
SYS TEM OP ER ATES ER RAT IC -
ALLY
Air in the sys tem:
check suc tion side of sys tem for leaks. Re -
pair leaks.
Cold oil:
al low am ple warm- up time. Use proper weight oil
for op er at ing tem pera ture.
Dirty or dam aged com po nents:
clean or re pair as needed.
Re stric tion in fil ters or lines:
clean and/or re place fil ter or
lines.
Not enough oil in sys tem:
fill and check for leaks.
SYS TEM OP ER ATES SLOWLY
Oil vis cos ity too high, or “cold oil”.
Al low oil to warm up
be fore op er at ing.
Low pump drive speed:
in crease en gine speed (check pump
own ers man ual for speci fi ca tions).
Low oil level:
check res er voir and add oil as nec es sary.
Air in sys tem:
check suc tion side for leaks. Re pair leaks.
Badly worn pump, valves, cyl in ders, etc.:
re pair or re place
faulty com po nent(s) as nec es sary.
Re stric tions in lines or fil ter:
clean and/or re place fil ter or
lines.
Im proper ad just ments:
check ori fices, re lief valves, etc.
Ad just as nec es sary.
Oil leaks:
tighten fit tings. Re place seals, gas kets and dam -
aged lines.
SYS TEM OP ER ATES TOO FAST
Wrong size or in cor rectly ad justed re stric tor:
re place or
ad just as nec es sary.
En gine run ning too fast:
re duce en gine speed.
OVER HEAT ING OF
OIL IN SYS TEM
Oil pass ing through re lief valve for ex ces sive time:
re turn
con trol valve to neu tral when not in use.
In cor rect, low, dirty oil:
use rec om mended oil. Fill res er voir
with clean oil. Re place fil ter.
En gine run ning too fast:
re duce en gine speed.
Ex ces sive com po nent in ter nal leak age:
re pair or re place
com po nent as nec es sary.
Re stric tion in fil ters or lines:
clean and/or re place fil ter or
lines.
In suf fi cient heat ra dia tion:
clean dirt and mud from
res er voir and com po nents.
Mal func tion ing com po nent:
re pair or re place.
5-7
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...
