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Connect the air hoses and open the air service valve. Then, push the cab control valve in and supply air to the trailer.
3. Connect the jumper cable.
Check to ensure that the stop lamps, tail lamps and turn signal lamps of the trailer light and flash by operating the re
鄄
spective switches.
4. Release the parking brakes of the trailer.
5. Pull the trailer brake lever toward you to check that the trailer brakes apply.
If exhaust air sound is heard when the lever is returned, the brakes are performing well.
BEFORE USING THE TRACTOR COUPLER
Before you use the tractor coupler, you should always;
●
Apply grease to each nipple and operating part sufficiently.
●
Whenever couple a trailer, apply grease to nipples of base upper part, rolling shaft and bracket sufficiently.
●
After cleaning the used grease in containing to foreign matter, apply new grease sufficiently.
TO COUPLE A TRAILER
●
If the trailer is positively coupled, the
indicator lamp in the instrument
will light. If the lamp does not light, check
NOTE:
The
indicator lamp will light with the gearshift lever only in reverse
●
On a pintle hook equipped vehicle, the
indicator lamp will light when the
trailer lock switch (If installed) is pushed in.
After the trailer has been coupled, perform the following step and check:
1. Couple the service 1 and emergency air hoses 2 and open air service
valve 3.
NOTE:
Do not confuse the hoses when coupling them.
CAUTION:
When the trailer is to be disconnected, close the air service valves and discon
鄄
nect the hoses.
2. On a pintle hook equipped vehicle, pull out the cab control valve and shut
off the supply of air to the trailer before connecting the service and emergency
air hoses.
90
OWNER
’
S MANUAL
JAC HEAVY DUTY TRUCK
