Komatsu AX20 Operation & Maintenance Manual page 93

Warming up the engine
Let the engine warm up for five or six minutes. On LPG trucks, do not depress the accelerator too far after starting
or during warm-up. This may cause freezing of the regulator and/or damage to the engine.
Precautions for restarting the engine (Applies to gasoline and LPG engine lift trucks only)
When the engine does not start, return the key from the START position to the OFF position.
With the anti-restart feature, the key cannot be turned to the START position again from just the ON position.
Return the key to the OFF position and then restart.
NOTICE
Read "16.2 MOUNTING/DISMOUNTING", "16.3 OPERATOR'S SEAT POSITION ADJUSTMENT" and "16.4
PLACING LIFT TRUCK IN MOTION", then check the following items.
n CHECK FOR ABNORMAL NOISE, ABNORMAL VIBRATION
Check in particular that there is no abnormal noise or abnormal vibration from the engine or hydraulic pump.
n CHECK ENGINE EXHAUST GAS COLOR
No color, light blue: Normal
Black: Incomplete combustion
White: Oil leaking into cylinder
n CHECK FUEL LEVEL IN FUEL TANK
When adding fuel, never let the fuel overflow. This may cause a fire. If you spill fuel, clean up any
spillage.
NOTICE
Never use any fuel mixed with kerosene (diesel engine lift truck).
If the fuel gauge indicator is at the (A) position, the tank is full.
If the fuel level is low, stop the engine and fill the tank through
the fuel filler port.
See "LUBRICANT LIST" on page 4-2 for details of the fuel to
use.
When adding fuel, remove all dirt from around the cap and be
careful not to let any dirt get into the tank.
After adding fuel, tighten the fuel filler cap securely and wipe up
any fuel that was spilled.
LPG engine lift trucks
Check the fuel gauge indicator on the LPG tank.
22. TRAVEL OPERATIONS
3-25