(2)
Figure 11
Note: 4JH4-TE shown. If no water or fuel
drains from the fuel filter / water separator,
loosen the air bleed screw on the fuel filter
2 - 3 times. This can occur when the fuel
level is lower than the position of the
fuel / water separator.
1. Make sure the fuel cock of the fuel tank
is closed.
2. Loosen the hose clamp and remove the
fire-resistant cover, which is installed to
the lower part of the fuel filter / water
separator to protect the water alarm
switch.
3. Attach a tube (Figure 11, (6)) to the
drain plug (Figure 11, (4)).
4. Loosen the drain plug (Figure 11, (4))
at the bottom of the fuel filter / water
separator counterclockwise and drain
off any water or sediment.
Note: If there is a large quantity of water and
sediment in the fuel filter / water separator,
also drain the fuel tank. See Draining the
Fuel Tank on page 61.
5. Tighten the drain plug.
6. Remove the drain tube.
7. Install the fire-resistant cover and
tighten the hose clamp.
8. Bleed air from the fuel system. See
Bleeding the Fuel System on page 30.
Checking the Battery Electrolyte
Level (Serviceable Batteries Only)
WARNING! Batteries contain sulfuric
acid. NEVER allow battery fluid to come
in contact with clothing, skin or eyes.
Severe burns could result. ALWAYS
wear safety goggles and protective
clothing when servicing the battery. If
battery fluid contacts the eyes and / or
skin, immediately flush the affected area
with a large amount of clean water and
obtain prompt medical treatment.
NOTICE: NEVER turn off the battery switch
(if equipped) or short the battery cables
during operation. Damage to the electric
system will result.
Note: Battery fluid tends to evaporate in high
temperatures, especially in summer. In such
conditions, inspect the battery earlier than
specified.
1. Turn the battery master switch to OFF
(if equipped) or disconnect the negative
(-) battery cable.
2. Do not operate with insufficient battery
electrolyte as the battery will be
destroyed.
3. Remove the plugs and check the
electrolyte level in all cells. NOTICE:
NEVER attempt to remove the covers
or fill a maintenance-free battery.
PERIODIC MAINTENANCE
66 JH4 Series Operation Manual
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