Repair manual

CRT Repair Engine Troubleshooting and Replacement
wc_tx000585gb.fm 137
8.8 Checking Operator Presence Relay
See Graphic: wc_gr003433
The operator presence relay (a) is located behind a protective cover
mounted to the machine frame. Battery voltage is sent to terminals 30
and 85 of the operator presence relay by the key switch via the pink
wires. To check the voltage at the operator presence relay, carry out
the following procedure:
8.8.1 Remove the protective cover.
8.8.2 Cut the wire ties that secure the operator presence relay.
8.8.3 Slide the connector down the terminals of the relay so that you can
probe the terminals with the lead of a multimeter.
8.8.4 Turn the ignition switch to the ON position.
8.8.5 Check for battery voltage between terminal 30 and ground.
• If battery voltage is measured, the operator presence relay is
receiving power.
• If battery voltage is not measured, check the continuity of the wir-
ing between the operator presence relay and the ignition switch.
Repair or replace the wiring as needed.
8.8.6 Next, check if power is being switched through the operator presence
relay by checking for battery voltage between terminal 87 of the
operator presence relay and ground.
• If battery voltage is measured, the operator presence relay is
functioning.
• If battery voltage is not measured, the operator presence relay is
not functioning. Check the wiring to and function of the throttle
switch.
wc_gr003433
a
86
85
30
87
87a