Wacker Neuson 28Z3 Service Manual

SHB 28Z3 EN - Edition 2.0 * 28Z3s20IVZ.fm I-5
Electrical system
Ohm's Law (current, voltage, resistance); power ..................................................... 6-2
Measuring equipment, measuring methods ............................................................. 6-2
Cable colour coding ................................................................................................. 6-3
Relays ...................................................................................................................... 6-3
Use, mode of function ........................................................................................ 6-3
Socket ...................................................................................................................... 6-4
Electric units ............................................................................................................ 6-4
Fuse box .................................................................................................................. 6-4
Alternator ................................................................................................................. 6-5
Starter ...................................................................................................................... 6-5
Switches: overview .................................................................................................. 6-6
Switch legend .................................................................................................... 6-6
Cigarette lighter ....................................................................................................... 6-7
Radio and mounting/wiring for radio installation (option) ......................................... 6-7
Front working light ................................................................................................... 6-8
Cab lights (option) .................................................................................................... 6-8
Rotating beacon (option) ......................................................................................... 6-9
Driving signal (option) .............................................................................................. 6-9
Wiring diagram (legend) ........................................................................................ 6-12
Wiring diagram ....................................................................................................... 6-13
Engine/chassis wiring harness (legend) ................................................................ 6-16
Chassis/engine wiring harness .............................................................................. 6-18
Cab wiring harness ................................................................................................ 6-19
Proportional controls wiring harness (option) ........................................................ 6-20
Engine speed control wiring harness (option) ........................................................ 6-21
Driving signal wiring harness (option) .................................................................... 6-22
Hydraulic quickhitch wiring harness (option) ......................................................... 6-23
Battery lead ............................................................................................................ 6-24
Options
Counterweight .......................................................................................................... 7-2
Specifications .................................................................................................... 7-2
Long stick ................................................................................................................. 7-2
Specifications .................................................................................................... 7-2
Automatic engine speed setting ............................................................................... 7-3
Installation ......................................................................................................... 7-4
Grab pipework ......................................................................................................... 7-5
Attachments ....................................................................................................... 7-5
3rd control circuit/PowerTilt ports ............................................................................ 7-6
Safe load indicator ................................................................................................... 7-7
Safe load indicator DE (from serial no. AG04828) (safety valves for boom) ........... 7-8
Safe load indicator DE (serial nos. AG02444 to AG04827) (safety valves for boom)
7-9
Safe load indicator DE (up to serial no. AG02443) .......................................... 7-10
Function ........................................................................................................... 7-10
Wiring diagram ................................................................................................ 7-11
Setting the pressure switch ............................................................................. 7-11
Safe load indicator FR (from serial no. AG04828) (safety valves for boom, stick and sta-
biliser blade) .......................................................................................................... 7-12
Safe load indicator FR (serial nos. AG02444 to AG04827) (safety valves for boom,
stick and stabiliser blade)
......................................................................................................................... 7-13
Safe load indicator FR (up to serial no. AG02443) .......................................... 7-14
Function ........................................................................................................... 7-14
Diagram (from serial no. AG04828) ................................................................. 7-15
Diagram (serial nos. AG02444 to AG04827) ................................................... 7-16

Wacker Neuson 28Z3 Specifications

General

Brand	Wacker Neuson
Model	28Z3
Category	Excavators
Language	English