Skyjack SJ643 TH Operating Manual page 28

Section 3 – Familiarization
1
2
3
4
Positive Air Shutoff Valve Test Switch (If
20
: This switch is used for testing
Equipped)
the functionality of the positive air shut-off valve.
It allows the operator to shut off the air supply to
the engine if the engine continues running after
the main power is shut down. (Refer to
3.5-1).
Road Lights Switch (If Equipped)
21
switch activates the front headlights and rear tail
lights.
Work Lights Switch (If Equipped)
22
switch activates the front and rear work lights
located on top of operator's cab.
Boom Lights Switch (If Equipped)
23
boom light switch controls the light at the end of
the boom.
Steer Mode Switch: This switch has three
24
positions to allow selection of four-wheel steer,
front steer and crab steer.
Direction Control Lever: This lever allows
25
forward or reverse travel. The center position
is neutral. To select forward travel, lift from lock
position and move the direction control lever to
the FWD forward position; for reverse travel move
lever to REV.
216201ADA
28
25 24
FWD
N
REV
5 6 7 8
Section
: This
: This
: The
23 22 21 20
P
9 10 11 12 13 14
Control Functions
19 18
17
16
15
SJ643 TH & SJ843 TH