Hitachi ZAXIS 30U-5N User Manual

13-15
ADDITIONAL CONTERWEIGHT
OPTIONAL ATTACHMENT
Additional Counterweight
The mass values of additional counterweights (1) are shown in
the table below.
Model Weight Overhangfromtheendofthe
base machine
ZX30U-5N 190kg 100 mm
ZX35U-5N 230kg 110 mm
ZX50U-5N 200kg 100 mm
ZX60USB-5N 270kg 110 mm
Removal
Removeadditionalcounterweight(1)byfollowingthe
procedure below.
1. Suspendadditionalcounterweight(1)byusingthe
lifting tools described below so that counterweight (1)
does not fall.
WireRope(2)2 Breakingload:morethan
7kN
PinShackle(3)2 JISNominalsize:8ormore
Eyebolt(4)2 M16
2. Removemountingbolts(5).
d
WARNING: Take care if additional counterweight (1)
is eccentrically lifted, lifted counterweight (1) may
widely sway. Place removed additional counterweight
(1) on a level surface.
Installation
1. Lift additional counterweight (1) by using the lifting
tools described above. Install additional counterweight
(1) on the standard counterweight. Tighten mounting
bolts (5).
 ZX30U-5N,35U-5N
Wrenchsize: 24 mm
Tightening
Torque:
270N·m(27kgf·m)
 ZX50U-5N,60USB-5N
Wrenchsize: 30mm
Tightening
Torque:
550N·m(55kgf·m)
2
3
4
1
5
MADB-13-037

Hitachi ZAXIS 30U-5N Specifications

General

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