Hitachi ZAXIS 30U-5N User Manual

MAINTENANCE
7-55
Check Water Separator (ZX30U-5N, 35U-5N)
Drain water --- every 8 hours (before starting
operation)
Waterseparator(1)isadevicedesignedtoseparatewaterfrom
the fuel. There is a float inside the case which buoys when
water accumulates.
Whenthefloatrisestothewaterdraininglevel,drainwater.
Drain Procedures
1. Parkthemachinefollowingthesameproceduresas
describedonpage7-6forpreparationforinspectionand
maintenance.
2. Place0.5litersorlargercapacitycontainerunderdrain
plug(3)tocollectthedrainedwater.
3. Closecock(2)atupperpartofwaterseparator(1).
Loosendrainplug(3)atlowerpartofwaterseparator
(1) to drain water. If water is difficult to drain, loosen air
bleedplug(4)counterclockwise2to3turns.
4. Afterdrainingwater,securelytightendrainplug(3)and
plug (4).
5. Opencock(2).
IMPORTANT: After draining water from the water
separator, bleed air from the fuel supply system.
Bleed Air from Fuel System (ZX30U-5N, 35U-5N)
Air in the fuel system will cause the engine to start hard
and/orrunroughly.Besuretobleedairfromthesystem
afterreplacingthefuelfilterorrunningthefueltankdry.
Automatic bleeding deveice is provided on this machine.
1. Confirmthatthefuellevelismorethanone-halfof
thetankcapacity.Ifthefuellevelislower,automatic
bleeding device will not operate. Add fuel.
2. TurnthekeyswitchONandholdfor10to15seconds.
3. Starttheengineandcheckthefuelsystemforfuelleaks.
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MADB-07-022
MADB-07-023
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Hitachi ZAXIS 30U-5N Specifications

General

Brand	Hitachi
Model	ZAXIS 30U-5N
Category	Excavators
Language	English