Gehl Dynalift 663 Operator'S Manual Download

Page: 23 / 72

PRINTED IN U.S.A.

907879/AP1198

In the “OFF” position, the clutch mechanism of the
transmission remains engaged when applying brakes.
In the “ON” position, the clutch mechanism is disen-
gaged while applying the brakes.

Normal brake force will hold the machine in position
while accelerating the engine to power hydraulic con-
trol functions during load placement.

NOTE:

The switch panel also includes control

switches for the following accessories used with
the cab enclosure option:

Heater:

Provides circulating heated air throughout the

cab interior.

Heater/AC:

This switch turns on or off either heating

or cooling selection for the operator’s station interior.
Units without air conditioning have only the heater
mode switch.

Head Lights/Work Lights:

Work lights may be added

to the operator station and boom to provide illumina-
tion for forward travel and work operations.

Windshield Wiper:

Helps maintain proper visibility

for the operator through the windshield area.

Windshield Washer:

Used to apply cleansing agent

while activating the windsheld wiper motor.

Turn Signal:

Used with the light package to indicate

direction of turns.

Hazard:

This switch can be activated to make the tail

lights flash off and on if the machine is stalled or tem-
porarily stopped in a traffic area on the road or jobsite.

Cold Start:

Activates injection of ether agent for faster

engine start in cold weather.

Engine Preheat

(Perkings Engine only)

Warms

intake air to the engine manifold.

Travel Controls

These controls are used to maneuver the machine
around the jobsite or for road travel. Decals on the dash
area provide graphic representation of the various con-
trol actions.

Steering:

The power steering motor is designed to give

effortless steering with no shock reaction from the axle
wheels to the steering wheel. Turn the direct connect-
ed steering wheel to the right or left to turn the machine
in the direction of wheel turn action.

Steer Selector:

Use “2-wheel mode” for higher speed

travel. Use “4-wheel mode” for making tighter turns,
usually on jobsite. Use “crab mode” when a small
amount of side shift is needed for picking or placing
loads. Any mode can be used in forward or reverse
travel.

NOTE:

The rear wheels are not self-centering.

Make sure all wheels are in a straight ahead posi-
tion before changing the selector mode.

Any of the steering position modes can be used in for-
ward or reverse travel. The operator should learn to
anticipate changes in machine movement if the steer-
ing selector mode must be changed.

Park Brake:

Functions as both a parking brake and

emergency brake. The park brake handle is linked by a
cable to a brake assembly on the transmission output
shaft.

To adjust the tension, turn the knob on the top of the
brake lever until a pull effort on the hand lever is 20
lbs. (89 N) is achieved.

The park brake may be used as an emergency stopping
system on relatively level terrain should the service
brakes fail. When properly adjusted and maintained it
meets ANSI test requirements providing 35% of ser-
vice brake performance at 20 lb (89 N) hand lever
effort.

WARNING

Unattended machine hazard.

Set park brake and lower attachment tool to
ground before leaving machine. An unattend-
ed machine can move or roll and cause death
or serious injury to operator or bystanders.

Periodically check the park brake tension and
adjust, if required, to maintain adequate hold-
ing power. Always be sure the park brake lever
is off when resuming machine operation.

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