JLG M4069 ANSI Service Manual - Manual (Page 101)

SECTION 5 - JLG CONTROL SYSTEM
3121122 – JLG Lift – 5-5
NOTE: Refer to Table 5-3, Machine Model Adjustment, and
Table 5-4, Machine Configuration Programming
Information 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