Technical information

CONTENTS
EN / W-SQ20 for mobile applications / April 2010 3
3 OPERATION .................................................................................................................................................................. 21
3.1 General ............................................................................................................................................................ 21
3.2 Operating Instructions ...................................................................................................................................... 21
3.2.1 Summarised operating instructions (daily use) ................................................................................ 21
3.2.2 Extended operating instructions ...................................................................................................... 21
4 MAINTENANCE ............................................................................................................................................................. 23
4.1 Alternator .......................................................................................................................................................... 23
4.2 Engine .............................................................................................................................................................. 23
4.2.1 Preliminary instructions ................................................................................................................... 23
4.2.2 Bleeding fuel lines ........................................................................................................................... 23
4.2.3 Valve clearance ............................................................................................................................... 23
4.2.4 Replacing fuel filter .......................................................................................................................... 24
4.2.5 Replacing oil filter ............................................................................................................................ 24
4.2.6 Tensioning V-belt............................................................................................................................. 24
4.2.7 Air cleaner element .......................................................................................................................... 24
4.3 Regular maintenance ....................................................................................................................................... 25
4.3.1 Maintenance schedule ..................................................................................................................... 26
4.3.2 Putting out of service ....................................................................................................................... 26
5 TROUBLE SHOOTING .................................................................................................................................................. 27
5.1 Alternator/ electrical faults ................................................................................................................................ 27
5.1.1 General ............................................................................................................................................ 27
5.1.2 Trouble shooting table alternator ..................................................................................................... 27
5.2 Engine faults ..................................................................................................................................................... 28
5.2.1 General ............................................................................................................................................ 28
5.2.2 Trouble shooting table engine ......................................................................................................... 29
5.2.3 Warnings ......................................................................................................................................... 31
5.2.4 Service address ............................................................................................................................... 32
5.3 Special procedures alternator ........................................................................................................................... 33
5.3.1 Automatic Voltage Regulator (AVR) ................................................................................................ 33
5.3.2 Residual voltage check / excitation procedure (flashing) ................................................................. 33
5.3.3 Testing rotary rectifier diodes .......................................................................................................... 34
5.3.4 Winding resistant values .................................................................................................................. 34
5.3.5 Meggering ....................................................................................................................................... 34
5.4 Special procedures engine ............................................................................................................................... 35
5.4.1 Setting the RPM .............................................................................................................................. 35
5.4.2 Adjusting valve clearance and retightening the cylinder head bolts. ............................................... 35
5.4.3 Disassembling instructions .............................................................................................................. 36
6 SPARE PARTS LIST ..................................................................................................................................................... 38
MAINTENANCE LOG ............................................................................................................................................................... 39