JAC Trucks. Manual - part 36
66
re-assembly headlight is necessary.
Methods for it: park vehicle on flat
road, put vision screen that paral鄄
leled flat surface of headlight on
place straight ahead ( also using flat
wall) to keep distance of 10m be鄄
tween vision screen and flat surface
of headlight.( figure below)
Adjust and test using measuring cell.
Oppose specified distance to mea鄄
suring cell to check offset distance of
light beam's horizontal and vertical
lighting position from left side, right
side, distance place and nearby
place on screen of measuring cell.
Adjust horizontal and vertical adjust鄄
ing screw
of
headlight.
Adjust
dimmed beam to make the offset dis鄄
tance that left and right light drift to
left and right side(Vleft-Vleft, Vright-
Vright are midpoint) be limited to
100mm.
Small light
Two small lights are embedded on
the two symmetrical corner of front
panel. They should be turned on
when vehicle parks in dark or fog or
when vehicle runs on bright road to
show the position and the width of
the vehicle.
Fog light
Fog light can light further in fog than
other light. They should be turned on
when vehicle runs or parks in fog or
in dark to ensure vehicle can be
seen clearly. Fog light is combined
with headlight.
Ceiling light
The ceiling light is mounted on the
ceiling, and it is combined with in鄄
side rear mirror together. It can light鄄
en the cab, and it can also observe
the condition backward.
Battery
Battery equipped to trucks of this se鄄
ries is aneroid and sealed by a plas鄄
tic case, and it has a big capacity as
well as a light weight.
Use & Note
1. Keep the case clean in case of
discharging to reduce the capacity.
OWNER爷S MANUAL for
HFC1061,HFC1063,HFC1083
series trucks
2. Make sure that the holes on the
upper cap not choked, or the plate
will be damaged by the vapor pro鄄
duced by electrolyzing.
3. The electrolyte level should be
10~15mm higher than the plate. Only
distilled water can be filled into the
battery. Never fill the battery with
fountain or river water, for they will do
harm to it.
4. Check specific gravity and level of
the electrolyte regularly. Do it every
10~15 days in winter, while every 5~
10 days in summer. Specific gravity
is measured with gravimeter. Table 1
shows normal specific gravity of the
electrolyte.
5. The battery should always being
charged. Check voltage of the bat鄄
tery if engine is hard to start. Charge
additionally if it is detected that spe鄄
cific gravity of electrolyte lower than
1.18 ~1.20, otherwise, battery plate
will be vulcanized and it will reduce
lifespan of the battery. Additional
charging should be kept for 13 ~16
hours, and it can take in 1/10 of ca鄄
pacitance into battery. Cut down the
charging current by half after single
cell's voltage reaches 2.4V, and the
charging time should be 3~5 hours.
If the specific gravity of electrolyte
don't rise any more, and this situa鄄
tion keeps for 2~3 hours, it indicates
that the accumulator has been
charged fully. Table 2 shows the re鄄
lationship between temperature and
the corrected specific gravity value
of electrolyte.
6. Protect the joint of terminal post
and wire from dirt and looseness, or
the terminal post will be burnt out. Af鄄
ter tightening the joints, apply a
vaseline coat on the terminal post
that can protect the joints from rust
and loose contact, so that engine
can start easily.
7. If left unused for a long time, the
battery should be removed and pre鄄
served in a place where is dry,
shady, cool, and venrilative. Addi鄄
67