Lull 644B Operation Manual - Manual (Page 14)

10
INSTRUMENTS AND CONTROLS
PARK BRAKE CONTROL
Park Brake Control
Pull knob (1) out (toward you) to engage the park brake.
Important: Always stop the machine with service
brakes before engaging park brake. Do
not use the park brake to slow or stop
the machine EXCEPT in an emergency.
Note: When park brake is engaged, transmission will
default to NEUTRAL, regardless of shift selector
position.
SHIFT SELECTOR
Shift Selector
The shift selector is located on the steering wheel
column. It controls machine travel direction and
transmission speed range.
Direction Control
Machine travel direction is controlled by moving the shift
lever to one of three positions:
FORWARD (F): Move the lever fully forward to select
forward machine movement.
NEUTRAL (N): Move the lever to the center position to
disengage the transmission. The engine may be started
only when the transmission is in NEUTRAL.
REVERSE (R): Move the lever fully rearward to select
reverse machine movement.
Speed Range Selection
The transmission has three speed ranges in forward or
reverse. To select different transmission speed ranges,
rotate the selector handle to the desired position. Speed
ranges may be selected while the vehicle is moving in
forward or reverse.
Note: The transmission requires 3 seconds
immediately after engine start for
self-diagnostics. Always wait at least 3 seconds
after engine start before engaging transmission.
The following table shows the maximum travel speed
for each position on the selector:
Note: The Model 644B is not equipped with a fourth
speed. If fourth is selected, the transmission will
remain in third speed.
H1007
H1022
F
N
R
1
2
3
4
N
ZF 3WG-100 Speeds
POSITION SPEED
1 2.5 mph
2 5.9 mph
3 13.2 mph
4 (See Note)