SERVICE MANUAL
ENGLISH
BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D
CA 451 / CA 531 / CA 551
909 6756 000(
5)2010-03
3
OTHER SYSTEMS .................................................................................................................................................... 94
SCREW AND NUT TIGHTENING CHECK (All models) ....................................................................................... 94
ELECTRICAL SYSTEM ............................................................................................................................................ 95
MACHINE WORKING HOUR CHECK (For BA 451, BA 451D, BA 531, BA 531D,
BA 551, BA 551D, BA 551CD, BA 611D, equipped with optional hour counter) ................................................... 95
MACHINE WORKING HOUR CHECK (For CA 451, CA 531, CA 551,
equipped with optional hour counter) ................................................................................................................... 95
POWER SUPPLY CABLE CHECK (For CA 451, CA 531, CA 551) ..................................................................... 95
BATTERY CHARGE AND MAINTENANCE (All models) ..................................................................................... 95
BATTERY DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D; BA 531, BA 531D,
BA 551, BA 551D, BA 551CD, BA 611D) .............................................................................................................. 96
BATTERY TYPE SETTING (WET OR GEL) (For BA 451, BA 531, BA 551) ........................................................ 97
BATTERY TYPE SETTING (WET OR GEL) (For BA 451D, BA 531D, BA 551D,
BA 551CD, BA 611D) ........................................................................................................................................... 98
FUSE CHECK/REPLACEMENT (For BA 451, BA 451D, BA 531, BA 531D, BA 551,
BA 551D, BA 551CD, BA 611D) ........................................................................................................................... 99
FUSE CHECK/REPLACEMENT (For CA 431, CA 531, CA 551) ....................................................................... 100
BRUSH MOTOR ELECTROMAGNETIC SWITCH DISASSEMBLY/ASSEMBLY
(For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) ........................................ 101
DRIVE SYSTEM ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY
(For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) ................................................................................. 103
FUNCTION ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY
(For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) ........................................ 105
WATER FLOW CONTROL ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY
(For CA 451, CA 531, CA 551) ........................................................................................................................... 106
TROUBLESHOOTING ....................................................................................................................................... 107
COMPONENT LAYOUT (For BA 451, BA 531, BA 551) .................................................................................... 108
WIRING DIAGRAM (For BA 451, BA 531, BA 551) ............................................................................................ 109
COMPONENT LAYOUT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) .......................................... 110
WIRING DIAGRAM (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) ................................................. 112
COMPONENT LAYOUT (For CA 451, CA 531, CA 551) .................................................................................... 113
WIRING DIAGRAM (For CA 451, CA 531, CA 551) ........................................................................................... 114
EB1 ELECTRONIC BOARD CONNECTOR PINS
(for BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) .......................................... 115