JLG M4069 Service Manual - Manual (Page 101)

SECTION 5 - JLG CONTROL SYSTEM
3121824 – JLG Lift – 5-5
NOTE: Refer to the appropriate Machine Personality Set-
tings Table, and the Machine Setup Table in the JLG
Service Manual for the default settings.
Password 33271 will give you access to level 1,
which will permit you to change all machine person-
ality and/or machine setup settings.
CHANGING THESE SETTINGS MAY ADVERSELY AFFECT THE
PERFORMANCE OF YOUR MACHINE.
The flash code is indicated on the face of the platform
control box as shown:
NOTE: For machines with software prior to P1.0, flash
codes are also displayed on the handheld analyzer.
For descriptions see,Table 5-1, Flash Codes/DTC’s.
IT IS A GOOD PRACTICE TO AVOID PRESSURE-WASHING ELEC-
TRICAL/ELECTRONIC COMPONENTS. SHOULD PRESSURE-
WASHING BE UTILIZED TO WASH AREAS CONTAINING ELECTRI-
CAL/ELECTRONIC COMPONENTS, JLG INDUSTRIES, INC. REC-
OMMENDS A MAXIMUM PRESSURE OF 750 PSI (52 BAR) AT A
MINIMUM DISTANCE OF 12 INCHES (30.5 CM) AWAY FROM THESE
COMPONENTS. IF ELECTRICAL/ELECTRONIC COMPONENTS
ARE SPRAYED, SPRAYING MUST NOT BE DIRECT AND BE FOR
BRIEF TIME PERIODS TO AVOID HEAVY SATURATION.
5.2 PC BOARDS
NOTE: Figure 5-2., PC Boards, is shown for part distinguish-
ing purposes. PC Board (p/n 1001099428) is used
on machines with Software P1.0 and higher. PC
Board (p/n 0610143) is used on machines prior to
Software P1.0. Visually reference the circuits and
chips circled in Figure 5-2. to determine which PC
Board is in the machine.
SYSTEM
FAULT
PCB - JLG P/N 0610143
PCB - JLG P/N 1001099428
Figure 5-2. PC Boards