Operating Checks; Interlock System - Jacobsen R-311T Dealer's Manual

3.2

OPERATING CHECKS ______________________________________________________

After the initial inspection test the mower for proper
operation. If mower is being fitted with an accessory you
may want to assemble these and check operation of the
mower with accessory attached.
1. Test the Interlock system.
[Section 3.2].
2. Start mower and check that switches, pedals, and
controls operate as described.
[Section 2.2]
3. Check that warning lights and alarm are working.
4. Check that brake pedal does not have more than one
inch free travel before engaging.
3.2

INTERLOCK SYSTEM ______________________________________________________

The Interlock System prevents the engine from starting
1.
unless the parking brake is Engaged, traction pedal is in
Neutral, and the PTO switch is OFF. The system also
stops the engine if the operator leaves the seat with the
PTO switch ON, traction pedal out of neutral, or parking
brake Disengaged.
!
Never operate equipment with the Interlock System
disconnected or malfunctioning. Do not disconnect
or bypass any switch.
2. Perform each of the following tests to insure the
Interlock System is functioning properly. Stop the test
and have the system inspected and repaired if any of
the tests fail as listed below:
l the engine does not start in test 1;
l the engine does start during tests 2, 3, or 4;
l the engine continues to run during tests 5 or 6.
Test Operator
Seated
Yes
1 4
2
4
3 4
4
5
4
6
4
WARNING
Interlock System Check
Parking
Brake
No Engaged Disengaged
4
4
H 4
H
H Lift your weight off seat. The engine will shut down.
5. Operate traction pedal and check that mower operates
smoothly in both directions. Check that mower stops
when traction pedal is released.
6. Check that mower does not creep with engine running
and traction pedal in neutral.
[Section 4.9]
7. Check adjustment of traction pedal stop.
[Section 4.10]
8. Check that decks raise and lower correctly and that
power take-off switch operates. Make sure blades turn
off when decks are raised.
9. After operation, stop mower and inspect again for oil or
3. Refer to the chart below for each test and follow the
check (4) marks across the chart. Shut engine off
between each test.
Test 1: Represents normal starting procedure. The
operator is seated, parking brake is Engaged, traction
pedal is in Neutral, and the PTO switch is OFF. The
engine should start.
Test 2: The engine must not start if the PTO switch is
ON.
Test 3: The engine must not start if the parking brake is
Disengaged.
Test 4: The engine must not start if the traction pedal is
not in Neutral.
Test 5: Start the engine in the normal manner then turn
the PTO switch ON and lift your weight off the seat. H
Test 6: Start the engine in the normal manner then
disengage parking brake and lift your weight off the
seat. H
Traction Pedal in
Neutral
Yes No
4
4
4 4
4
4
4 4
SET UP 3
PTO Engine
Switch Starts
On Off Yes
4 4
4
4
4 H
4 H
No
4
4
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