MAINTENANCE
REPLACING FUEL FILTER
1.Set the container under the filter cartridge to catch fuel.
2.Using a filter wrench, turn the filter cartridge to the left to remove it.
3.Clean the filter holder, fill the new filter cartridge with fuel, coat the packing surface of the fi lter cartridge with engine oil, then install the cartridge to the filter holder.
4.When installing, tighten until the packing surface contacts the seal surface of the fi lter holder then tighten a further 2/3 of a turn. If the filter cartridge is tightened too much, the packing will be damaged and will cause fuel leakage. Fuel leakage will occur if the filter cartridge is not tightened enough. Always tighten to the correct angle.
5.Squeeze the fuel primer bulb to pump fuel back into the engine.
6.Replace corrosion resistor cartridge (if equipped).
7.Screw in valves at the top of the corrosion resistor.
8.Using a filter wrench, turn the cartridge to the left to remove it.
9.Coat the seal surface of the new cartridge with engine oil and install it to the filter holder.
10.Tighten until the packing surface contacts the seal surface of the filter holder, then tighten a further 2/3 of a turn.
11.Open valves.
SERVICINGTHE MAST RAISE/LOWER CABLE SYSTEM:
To replace any components in the mast raise/lower cable system, use the following steps (See Figure 21):
Figure 21. Mast Raise/Lower Cable System
1.Lower the mast to the horizontal resting position.
2.Inspect the cable clamps, pulleys, and other components for worn or damaged parts.
3.Disconnect the cable from the ball socket pin and remove from the mast pulley and cable sheave. Detach the cable from the hand winch as necessary.
4.Replace the pulley and the cable as needed.
5.Rethread the cable through the pulley and reattach the cable to the ball socket pin.
6.Raise and lower the mast several times to verify correct operation.
SERVICINGTHE MAST EXTENSION CABLE SYSTEM:
To replace the cable in the mast extension cable system, use the following steps (See Figure 22):
CENTER | LOWER | LOWER |
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MAST |
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PULLEY | PULLEY | SHACKLE |
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UPPER | CENTER | LOWER |
MAST | MAST | MAST |
Figure 22. Mast Extension Cable System
PAGE 34 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
