Jacobsen Super LF 1880, Safety & Operation Manual

OPERATION    5

GB-11

5

   OPERATION

5.1   DAILY INSPECTION ________________________________________________________

1.

Perform a visual inspection of the entire unit, look for
signs of wear, loose hardware, and missing or
damaged components. Check for fuel or oil leaks to
ensure connections are tight and hoses and tubes
are in good condition.

2.

Check the fuel supply, radiator coolant level,
crankcase oil and air cleaner indicator. All fluids
must be at the full level mark with engine cold.

3.

Make sure all mowers are adjusted to the same
cutting height.

4.

Check tires for proper inflation.

5.

Test the Interlock System.

Note:  For more detailed maintenance information,
adjustments and maintenance/lube charts, see the
Parts & Maintenance manual.

5.2

Interlock System _________________________________________________________________________

1.

The Interlock System prevents the engine from
starting unless the parking brake is engaged, the
traction pedal is in neutral and the reel switch is OFF.
The system also stops the engine if the operator
leaves the seat with the reel switch ON, traction
pedal out of NEUTRAL, or parking brake
DISENGAGED.

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:

●

   the engine does not start in test 1;

●

the engine does start during tests 2,3 or 4;

●

the engine continues to run during tests 5 or 6.

3.

Refer to the chart below for each test and follow the
check (

✔

) marks across the chart. Shut engine off

between each test.

Test 1: Represents normal starting procedure. The
operator is seated, parking brake is engaged, the
traction pedal is in neutral, and the reel switch is
OFF. The engine should start.

Test 2: The engine must not start if the reel switch is
ON.

Test 3: The engine must not start if the parking brake
is DISENGAGED.

Test 4: The engine must not start if traction pedal is
not in neutral.

Test 5: Start the engine in the normal manner then
turn reel switch ON and lift your weight off the seat. 

★

Test 6: Start the engine in the normal manner then
disengage parking brake and lift your weight off the
seat. 

★

★ 

Lift your weight off seat. The engine will shut down.

CAUTION

 The daily inspection should be performed only when 

the engine is off and all fluids are cold. Lower mowers 

to the ground, engage the parking brake, Stop engine 

and remove ignition key.

!

WARNING

Never operate equipment with the Interlock System
disconnected or malfunctioning. Do not disconnect or
bypass any switch.

!

 Interlock System Check

Test

Operator 

Seated

Parking 

Brake

Traction Pedal

in Neutral

Reel

Switch

Engine 

Starts

Yes

No

Engaged

Disengaged

Yes

No

On

Off

Yes No

1

✔

✔

✔

✔

✔

2

✔

✔

✔

✔

✔

3

✔

✔

✔

✔

✔

4

✔

✔

✔

✔

✔

5

✔

★

✔

✔

✔

★

6

✔

★

✔

✔

✔

★