Drain Fuel Pre-Filter - Hitachi ZW 310-6 Operator's Manual

Drain Fuel Pre-Filter

--- every 10 hours (daily)
IMPORTANT: Drain fuel filter daily before starting
operation. The engine may be damaged if you do not
drain fuel filter daily.
Fuel pre-filter (1) has water separator function, which drains
water. Drain water when the engine trouble indicator
flashes.
Draining Procedures
1. Place 0.5 liters or larger capacity container under drain
valve (2) to hold the drained water.
2. Turn valve (2) counterclockwise approximately 3½ turns
by hand. Until the valve drops down 25.4 mm (1 in) and
draining occurs.
3. Drain water until clear fuel is visible.
IMPORTANT: When closing drain valve (2), do not
overtighten the valve. Overtightening can damage the
threads.
4. To close the valve, lift the valve and turn clockwise until
it is hand-tight.
5. Start the engine. Check drain valve (2) for fuel leaks.
MAINTENANCE
1
2
1
2
7-70
90Z7B-7-64-1
90Z7B-7-64-2