Jacobsen 67978 – LF 550 Safety & Operation Manual - Notice

OPERATION    4

17

4.4

STARTING________________________________________________________________

1.

Sit in operator’s seat, make sure the mow switch 

(B)

 is

OFF (down) and the parking brake switch 

(C)

 is

Engaged. Remove feet from pedals. Always use the

seat belt when operating mowers equipped with a

ROPS.

2.

Set throttle lever 

(U)

 to half throttle.

3.

Turn ignition switch 

(E)

 to ON (

) position.

The warning lights on the LDU 

(A)

 will come on and the

alarm will sound for one second. Check that lights are

operating.

4.

Turn ingition switch to Glow Plug position. Wait until

glow plug light goes out, then immediately turn ignition

key to “START” (

) position. Release as soon as

engine starts. 

Allow 30 seconds between start-up attempts to allow

time for engine starter motor to cool.

All warning lights should go off after engine starts.

Allow engine to gradually become warm before

operating at high RPM.

Figure 4A

4.5

STOPPING / PARKING ______________________________________________________

To stop:

Remove your foot from traction pedal. Always engage

parking brake switch before leaving machine.

To park the mower under normal conditions:

1.

Disengage the mow switch 

(B)

, raise and lock the

implements in the transport position, and move away

from the area of operation.

2.

Select a flat and level area to park.

a.

Release traction pedal to bring the mower to a

complete stop.

b.

Disengage all drives, lower implements to the

ground, reduce throttle to idle, and allow engine to

operate at no load for a minute.

3.

Engage parking brake switch, stop the engine, and

always remove the ignition key.

If an emergency arises and the mower must be parked in

the area of operation, follow the guidelines outlined by the

grounds superintendent.

If the mower is parked on an incline, chock or block the

wheels.

NOTICE

IMPORTANT:

Do not use starting assist fluids.

 Use of

such fluids in the air intake system may be potentially

explosive or cause a “Runaway” engine condition and

could result in serious engine damage.

NOTICE

Do not hold key in “START” position for more than 10

seconds at a time. After 10 seconds the starting circuit

will shut down and must be reset by returning the key to

the OFF position.

A

E

B

C

NOTICE

Permanent damage to the turbocharger may occur if

the engine is shut down without allowing the

turbocharger time to cool. 

To prevent damage, operate the engine with no load

and at half throttle for 3 to 5 minutes before shutting

off engine.