Reelmaster 4000–DPage 5 – 34Electrical System (Rev. A)
Check Interlock System
CAUTION
The interlock switches are for the operator’s
protection, so do not disconnect them. Check
operation of the switches daily to assure inter-
lock system is operating. If a switch is defective,
replace it before operating properly. Even if the
switches are operating properly, replace them
every two years to assure maximum safety.
1. In a wide open area free of debris and bystanders,
lower cutting units to the ground. Stop engine.
2. Sit on the seat and engage parking brake. Turn key
and try to start engine with Mow–Backlap lever in both
the MOW and BACKLAP positions. If engine cranks,
there is a malfunction that must be repaired immediate-
ly. If engine does not crank, the cutter drive switch is op-
erating properly.
3. Sit on the seat and disengage the parking brake.
Turn key and try to start engine with Mow–Backlap lever
in STOP. If engine cranks, there is a malfunction that
must be repaired immediately. If engine does not crank,
brake switch is operating properly.
4. Engage parking brake, start engine and lower cut-
ting units. Move Mow–Backlap lever to MOW. Raise off
the seat; engine should stop within a few seconds, which
indicates the interlock system is operating properly. Also
raise off the seat with lever in BACKLAP. Engine should
stop, indicating interlock system is operating. If engine
does not stop, there is a malfunction that must be re-
paired immediately.
5. Engage parking brake, move Mow–Backlap lever to
NEUTRAL, start engine, disengage hand brake and
raise off seat. If engine stops, interlock system is operat-
ing. If engine does not stop, there is a malfunction that
must be repaired immediately.