Brief Description; Travelling Drive; Work Hydraulics; Cooling System - Wacker Neuson 28Z3 Operator's Manual

1.3

Brief description

Travelling drive

Work hydraulics

Cooling system

Cab

OM 28Z3 US – Edition 2.0 * 28Z3b110.fm
The model 28Z3 excavator is a self-propelled work machine.
Get informed on and follow the legal regulations of your country.
This machine is a versatile and powerful tool for moving earth, gravel and debris on con-
struction sites and elsewhere. A wide range of attachments accounts for the numerous
applications of the machine, among others hammer and grab applications. See chapter
1.4 Fields of application, attachments for further applications.
The main components of the machine are:
• FOPS (Falling Object Protective Structure), TOPS (Tip Over Protective Structure) and
ROPS (Roll Over Protective Structure) tested closed cab (standard)
• FOPS (Falling Object Protective Structure), TOPS (Tip Over Protective Structure) and
ROPS (Roll Over Protective Structure) open version (option)
• Model 28Z3: water-cooled Yanmar three cylinder diesel engine.
• Sturdy steel sheet chassis; rubber-mounted engine
The diesel engine permanently drives the twin axial variable displacement pump whose oil
flow is sent to a hydraulic motor for each track drive unit.
The diesel engine also drives the joint gear pump for the work hydraulics. The oil flow of
this pump depends on the diesel engine speed only.
Coolant temperature is monitored with the indicator light on the machine's instrument
panel.
Do not modify or attempt to repair the ROPS cab or ROPS structure. A bent or damaged
ROPS will no longer protect the operator in the event of a tipping incident and must be
replaced. Contact your Wacker Neuson dealer for instructions or clarification.
The ROPS is a special safety device designed and produced to exacting material and
assembly standards for certification. Bending, heating, welding, cutting, or drilling holes in
the ROPS will reduce the protection performance in a tipping incident.
Fasten your seatbelt, otherwise you can be thrown around or even outside the cab and
crushed. Therefore always fasten your seatbelt as you drive and work with the machine.
Tighten the seatbelt before operating machine.
Introduction
1-3