3-9
COU PLING OF THE TRAC TOR TO THE SEMITRAILER
DAN GER
KEEP ALL PER
SON
NEL CLEAR OF
FRONT, REAR, AND SIDES OF TOW
-
ING VE HI CLE AND SEMITRAILER DUR -
ING COU PLING, COM PO NENT OP ER A -
TIONS, AND UN
COU
PLING. FAIL
URE
TO STAY CLEAR CAN RE SULT IN SE -
RI OUS PER SONAL INJURY OR DEATH.
3-9.1
Ver
ify the semitrailer wheels are
chocked and brakes func tion prop erly.
3-9.2
Make cer
tain the cou
pler of the tow
ing
ve
hi
cle’s fifth wheel is open by pull
ing the
latch han dle.
3-9.3
Slowly back the tow
ing ve
hi
cle so its
fifth wheel con tacts the front of the king pin
plate on the semitrailer and slips un
der it.
Con tinue back ing un til the fifth wheel cou pler
locks onto the semitrailer king pin.
CAU TION
PUSH
ING THE SEMITRAILER BACK
-
WARDS CAN DAM AGE PARK ING
STANDS.
3-9.4
Ver ify the ve hi cle cou pling is se cure by
at
tempt
ing to pull the trac
tor for
ward a few
inches. If the trac
tor dis
con
nects from the
semitrailer, lo cate source of cou pling fail ure;
re pair be fore con tin u ing; and re peat
Sec tion
3-9.5
Check that the tow
ing ve
hi
cle cou
ples
se curely to the semitrailer be fore set ting tow -
ing ve hi cle and semitrailer park ing brakes.
IM POR TANT
KEEP BRAKES EN
GAGED FOR RE
MAIN
DER
OF HOOKUP, CHECK OUT PRO CE DURES, AND
PARK ING.
3-10 CON NECT ING TRAC TOR SER VICES TO THE SEMITRAILER
3-10.1
Con nect the tow ing ve hi cle 7-pole elec -
tri cal plug to the elec tri cal re cep ta cle on the
front of the semitrailer
(See Fig ure 3-5).
IM POR TANT
THE KEY ON THE PLUG AND THE KEYWAY IN
THE SOCKET MUST BE PROP
ERLY ALIGNED
BE
FORE IN
SERT
ING THE PLUG INTO THE
SEMITRAILER SOCKET.
3-10.2
If you have not al
ready done so, con
-
nect the trac
tor hy
drau
lic lines to the
semitrailer un
less your semitrailer is
equipped with the self-con
tained hy
drau
lic
power en gine package.
CAU TION
OP ER AT ING PRES SURES GREATER
THAN 2500 PSI CAN CAUSE DAM AGE
TO THE TRAILER.
IM POR TANT
SOME OIL MAY NEED TO BE RE MOVED FROM
THE TRAC TOR RES ER VOIR TO AL LOW ROOM
FOR 12 GAL
LONS OF AD
DI
TIONAL OIL DIS
-
PLACED FROM THE TRAILER HY
DRAU
LIC
SYSTEM.
3-10.3
Air Lines:
See Sec tion 3-8.
3-12
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...
