Hitachi ZAXIS 30U-5N User Manual

MAINTENANCE
7-23
Swing Internal Gear
--- every 500 hours
d
CAUTION: Lubricating both the swing bearing and
gear and rotating the upperstructure must be done by
one person. Before you lubricate the swing bearing,
clear the area of all persons. Lower the bucket to the
ground. Stop the engine. Pull the pilot control shut-off
lever to the LOCK position.
1. Parkthemachinefollowingthesameproceduresas
describedonpage7-6forpreparationforinspectionand
maintenance.
2. Removethecoverfromthebottomcenterofthe
undercarriage.Checkifgreaseiscloudyduetomixingof
water or dirt.
3. Applygreaseviagreasefitting(1).
4. Starttheengine.Pushthepilotcontrolshut-offleverto
theUNLOCKposition.
5. Raisethebucket200mmoffthegroundandrotatethe
upperstructure90°(1/4turn).
6. Lowerthebuckettotheground.
7. Repeattheprocedure(Step1to6)fourtimes.
8. Applygreasebythequantityshowninthebelowtable.
If the grease is contaminated, remove all old grease
andreplacewithnewgrease.Takecarenottosupply
excessivegrease.
Grease
Quantity
TotalGrease
Capacity
ZX30U-5N,35U-5N 0.2 L 3.0to3.3L
ZX50U-5N,60USB-5N 0.2 L 3.2to3.5L
Control Lever Universal Joint
--- every 500 hours or every year
Pulluptherubberbootsundertherightandleftcontrollevers,
and add grease to the four places of the pilot valve pushers as
indicated by arrows.
1
MADB-07-009
MADB-07-010
M1M7-07-016

Hitachi ZAXIS 30U-5N Specifications

General

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