Instrument Panel - JLG 642 Operation & Safety Manual

Section 3—Controls and Indicators

Instrument Panel

The instrument panel uses different colors to alert the operator to different types of
operational situations that could arise.
• When an indicator illuminates RED (except park brake) or if a gauge enters a red zone,
immediately bring machine to a stop, lower boom and attachment to the ground and
stop the engine. Determine cause and correct before continued use.
• When an indicator illuminates YELLOW an abnormal operating condition is present. If
not corrected, machine interruption or damage may result.
• When an indicator illuminates GREEN or BLUE or if a gauge is in the green zone,
important information regarding safe operation is being displayed.
3
2
1
19
18
EQUIPMENT DAMAGE. When a red indicator illuminates (except park brake),
immediately bring machine to a stop, lower boom and attachment to ground and stop
the engine. Determine cause and correct before continued use.
1. All Wheel Steer: Illuminates when all wheel steer is active.
2. Two Wheel Steer: Illuminates when two wheel steer is active.
3. Crab Steer: Illuminates when crab steer is active.
3-4
5
4
X
5
0
20
21
26
17
NOTICE
6
20
15 25
10 30
35
22
X100
40
25
16 14
15
7
8
9
23
24
RAS
27
13
10
11
12
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