National Mower DL 68" Lawn Mower User Manual


 
68OMCE-10/01-350
12
OPERATION
FIGURE C
The following is a description of the machine controls
and their function. Refer to Figure C.
1. Engine Clutch Lever (labeled Mowing Clutch) –
Engages power for travel and mowing. Down position is
disengaged and up position is engaged. IMPORTANT –
Engage slowly before full engagement. Always disengage
the drive when stopping or leaving the machine. See
Caution Decal.
The engine clutch lever has an electrical interlock and
engine will not start if clutch is engaged. For added safety,
the interlock system should be checked periodically to
ensure that it is adjusted to function properly.
2. Wing Mower Clutch – Engages drive to wing mowers.
Pull lever back and down to engage. Never engage drive
unless wing mowers have been lowered to cutting position.
3. Ignition Key Switch – Provides a means to secure the
mower when unattended. Turn the key clockwise to
unlock the ignition.
4. Throttle Control – Regulates mowing and travel speeds.
Moving the control handle back or lowering it will reduce
engine speed for starting and idling engine. Push forward
to increase engine speed. Never operate mower at speeds
faster than necessary to do a good, safe job.
5. Brake – Is designed to slow the mower and lock the rear
wheels in the full stop position. Depress the foot pedal to
engage. Note: It is best to slow the mower with the throttle
and then disengage clutch lever before applying brake.
This prevents excessive wear and engine overload.
6. Parking Brake Lever – Provides a lock for the brake.
Push brake lever forward, over center, to lock. Pulling
brake lever back, toward the rear of the machine will
disengage the brake.
7. Shifter Lever – Located on the mower differential, this
control has three positions: Forward, Neutral (center
position), and Reverse. The lever must be pulled toward
the center of the machine to clear the notch in the stop disc
and positioned securely in the new notch.
IMPORTANT: Never shift while machine is in motion
because it could cause damage to the gears. Always
disengage engine clutch before attempting to shift.
8. Rear Mower Clutch Shifter Lever – Engages drive
to the rear mower. Pull lever forward and toward the
center of the machine to engage sliding jaw clutch. To
disengage, pull lever forward and out to engage locking
pin. Never engage the drive unless the rear mower has
been lowered to the cutting position.
9. Rear Mower Lifter Handle – Raises rear mower to the
transport position. Pull handle up, forward and over center
to lock it in an up position.
10. Wing Mower Lifter Handles – Raises wing mower to
the transport position. Lift wing mowers until they can be
secured with hooks on frame.
Moving machinery can be dangerous if not operated
properly. Follow all safe operating suggestions listed on
Safe Operation Practices, Page 6.