Repair manual

Troubleshooting the Drive System RD 27
wc_tx000949gb.fm 64
4.10 Checking the Backup Alarm Switch
Prerequisites  Machine shut down
 Multimeter
Procedure Follow the procedure below to check the backup alarm switch.
1. Peel back the boot (c) from the FWD/REV control lever to reveal the switches.
2. Remove the wires from the backup alarm switch (a).
3. Check for continuity between the NO terminal and the COM terminal of the
neutral switch in each position of the FWD/REV control lever. See chart.
Does the neutral switch function as stated in the chart?
Result The backup alarm switch has now been checked. Reassemble the machine.
FWD/REV control
lever Position
Continuity between
NO & COM
Forward No
Neutral No
Reverse Yes
Yes ____ No ____
The backup alarm switch is OK. The backup alarm switch has failed;
replace it.