Sakai SV540 Series, Shop Manual

Page: 265 / 306

9-057
TROUBLESHOOTING
2-6-1. No vibration occurs 2/3
Vibration mode change switch must be “CONT” (continuous mode).
Vibration select switch must not be “ ”.
Check whether ECO controller red LED shows any blink.
1) when red LED shows no blink.
Reference Fig.: 2-6-1
Check point Check/Cause Action
5. MID/FULL Speed
Control Relay (B-3)
(1) when starter switch is ON, measure voltage between
MID/FULL speed control relay (B-3) terminal 1 inlet wire
WB and chassis ground.
Standard voltage : 24 V or more
(2) when starter switch is ON, measure voltage between
MID/FULL speed control relay (B-3) terminal 3 inlet wire
RB and chassis ground.
Standard voltage : 24 V or more
(3) when starter switch is ON and throttle switch is
“MID”, measure voltage between MID/FULL speed
control relay (B-3) terminal 5 outlet wire RL and chassis
ground.
Standard voltage : 24 V or more
If above items (1) and (2) are OK and item (3) is NG, MID/
FULL speed control relay (B-3) is faulty.
•
Replace MID/FULL
speed control relay (B-3).
6. ECO controller (1) when starter switch is ON, measure voltage between
ECO controller terminal C1-P2 inlet wire YB and chassis
ground.
Standard voltage : 24 V
(2) when starter switch is ON and vibration select switch
is “ ” or “ ”, measure voltage between
ECO
controller terminal wires and chassis ground.
“ ” : ECO controller terminal C1-P9 inlet wire YR
and chassis ground.
“ ” : ECO controller terminal C1-P10 in let wire YB
and chassis ground.
Standard voltage : 24 V
(3) Check ECO controller terminal C1-P1 wire B is
grounded.
(4) After starting engine and vibration select switch is
“ ” or “ ”, measure current between
ECO
controller terminal wires and chassis ground.
“ ” : ECO controller terminal C1-P11 outlet wire RL
and chassis ground.
Standard current : 450 mA (at throttle switch is “MID”)
: 340 mA (at throttle switch is “FULL”)
“ ” : ECO controller terminal C1-P12 outlet wire
RY and chassis ground.
Standard current : 450 mA (at throttle switch is “MID”)
: 330 mA (at throttle switch is “FULL”)
If above items (1), (2) and (3) are OK and item (4) is NG,
ECO controller is faulty.
(NOTICE)
Since current value is output in PWM, standard value
shown above represent a maximum instaneous value.
•
•
Replace ECO controller.
•
•
•