JLG 600SC_660SJC Service Manual - Manual (Page 60)

SECTION 4 - BOOM & PLATFORM
4-20 – JLG Lift – 3120898
NOTE: The timing marks (the small punch marks on the
face of each gear), must be aligned for proper shaft
orientation. (See Actuator Timing.)
5. Install the shaft (2) into housing (1) by aligning the
proper punched timing marks. (See Actuator Tim-
ing.)
6. Temporarily tape the threaded portion of the shaft
will help installation past the shaft seals (masking
tape).
7. The end cap (5) is torqued to 40 - 50 ft. lbs. (54 - 68
Nm), such that the actuator begins rotation at
approximately 100 psi (6.895 Bar) pressure.
8. The end cap must be secured against the shaft by
installing axial set screws (4).
4.9 FOOT SWITCH ADJUSTMENT
Adjust so that functions will operate when pedal is at cen-
ter of travel. If switch operates within last 1/4 in. (6.35 mm)
of travel, top or bottom, it should be adjusted.
4.10 SUPERFLEX CONTROLLER
System Overview
The SUPERFLEX Controller is a stand alone control sys-
tem that electrically drives the machine’s electrohydraulic
valves.
It receives input, electrical signals, from OEM's proprietary
"DIGISENSOR", as well as pressure, temperature, flow,
angle, length, load cell, and strain gauge transducers. The
input signals can "condition" the DC outputs, via software,
if desired. It provides four (4) Pulse Width Modulated
(PWM) DC outputs, as well as a 5th channel for use as a
discrete (on/off) signal. Dual coil, single coil, and flow con-
trol type valves can be controlled in a bidirectional or uni-
directional mode of operation.
The SUPERFLEX has been designed with the following
user benefits in mind:
a. Easy to use
b. Easy to adjust
c. Fast set-up
d. Self diagnostics
System Elements
The SUPERFLEX System is composed of several compo-
nents:
1. SUPERFLEX Controller
2. DIGISENSOR and Joysticks
3. OPTIMIZER
SUPERFLEX CONTROLLER
The SUPERFLEX Controller is a microprocessor-based
electronic device, which converts the changing input val-
ues from the Joystick/DIGISENSORs, analog sensors,
tachometers, and on/off contact closures into digital sig-
nals which are used by the computer in the SUPERFLEX
controller. The controller will then provide [PWM] outputs
to electrohydraulic valves and coils. The desired output
(PWM) signals are fine tuned independently in each direc-
tion. The OEM "OPTIMIZER" is used to perform this tuning.
DIGISENSOR AND JOYSTICKS
Joysticks actuate special sensors (DIGISENSORs) which
transmit joystick position information to the SUPERFLEX
Controller via two wires. The proper polarity must be used
as indicated on the wiring diagrams. The uniqueness of
this sensor allows it to be remote, up to 500 feet, from the
SUPERFLEX Controller. It can operate in hostile EMI/RFI
environments.
Figure 4-26. Actuator Timing