JLG 4017PS Operator Manual - Manual (Page 76)

Section 3 - Controls and Indicators
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3.5 OPERATOR SEAT
Operator Presence
The operator seat (1) is equipped with an operator presence system. Engine start
and hydraulic functions are prohibited if operator is not present. If the system detects
a loss of pressure during operation, after a two second delay one of the following will
occur:
1. With the park brake (2) engaged and transmission in neutral (3):
• Hydraulic controls are disabled. (Continuous Auxiliary function permitted)
• Upon returning to seated position, hydraulic controls are enabled.
2. With the park brake (2) disengaged and transmission in neutral (3):
• Hydraulic controls are disabled and horn sounds continuously. (Continuous
Auxiliary function permitted)
• Upon returning to seated position, hydraulic controls are enabled and horn
will cease.
3. With the park brake (2) disengaged and transmission in forward or reverse (3):
• Hydraulic controls are disabled, horn sounds continuously and transmission
shifts to neutral.
• Upon returning to seated position, hydraulic controls are enabled and horn
will cease. Return transmission to neutral to allow system to reset prior to
reengaging forward or reverse travel.
OZ4330
2
3
1
3
(IF EQUIPPED)