Safety Interlock System Tests - Viking MT 880 Gebrauchsanleitung

F
If the unit does not pass a safety test, do
not operate it. See your authorized dealer.
Under no circumstance should you attempt
to defeat the purpose of the safety inter-
lock system.
A-4
system tests
A
B
This unit is equipped with safety interlock
switches and other safety devices. These safety
systems are present for your safety: do not
attempt to bypass the safety switches and never
tamper with the safety devices. Check their
operation regularly.
Service interval: Every fall and spring
Operational safety checks
C
Your unit is equipped with a seat switch safety
system. Check the seat switch operation every
fall and spring with the following tests:
Test 1 - Engine should NOT crank if:
• PTO (A) is engaged, or
D
• Brake pedal (C) is NOT fully depressed
[parking brake (B) disengaged].
Test 2 - Engine SHOULD crank if:
• PTO (A) is disengaged, and
E
• Brake pedal (C) is fully depressed [parking
brake (B) engaged].
Test 3 - Engine should SHUT OFF if:
• Operator rises off seat (E).
Test 4 - PTO should SHUT OFF if:
• The grass catcher (F) is opened with the PTO
switch (A) in the on position.
Test 5 - Mower blade brake check
The mower blades and mower drive belt should
come to a complete stop within five seconds
after PTO switch is turned to the off position (or
operator rises off seat). If mower drive belt does
not stop within five seconds, perform the PTO
clutch adjustment found in the "Regular
Maintenance" section or see your authorized
dealer.
Safety
interlock
Once the engine has stopped, the
PTO switch must be turned off after
the operator returns to the seat in
order to start the engine.