JLG 660SJ ANSI Service Manual - Manual (Page 165)

SECTION 4 - BOOM & PLATFORM
3120718 – JLG Lift – 4-29
4.12 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.
4.13 BOOM SYNCHRONIZING PROCEDURE (A
MODELS ONLY)
NOTE: If the Lower Boom assembly does not fully lower:
1. Remove all personnel from the platform.
2. Pull the red knob located under the manual descent
control valve.
3. From Ground Control, activate the lift control switch,
raise Lower Boom 6 feet (1.83m).
4. After raising Lower Boom, release the red knob.
5. Activate Lower Boom Down, fully lower boom.
6. Repeat step 1 thru 5 if necessary.
Table 4-2. Flow Control Card Settings
S Models
Function Minimum Current Maximum Current
Lift Up 450 to 55o mA 1400 to 1500 mA
Lift Down 450 to 550 mA 1400 to 1500 mA
Swing Right 450 to 550 mA 1400 to 1500 mA
Swing Left 450 to 550 mA 1400 to 1500 mA
Flow Control 750 to 850 mA 1400 to 1500 mA
Drive Forward 40 to 60 mA 150 to 200 mA
Drive Reverse 40 to 60 mA 150 to 200 mA
A Models
Lift Up 450 to 550 mA 900 to 1000 mA
Lift Down 450 to 550 mA 1400 to 1500 mA
Swing Right 450 to 550 mA 1400 to 1500 mA
Swing Left 450 to 550 mA 1400 to 1500 mA
Flow Control 750 to 850 mA 1400 to 1500 mA
Drive Forward 50 to 60 mA 150 to 200 mA
Drive Reverse 50 to 60 mA 150 to 200 mA
Table 4-3. Flow Control Card Ramp Time
Function Ramp Time
Lift Up Ramp Up Time = 4:00 sec.
Ramp Down Time = 3:00 sec.
Lift Down Ramp Up Time = 4:00 sec.
Ramp Down Time = 3:00 sec.
Swing Right Ramp Up Time = 4:00 sec.
Ramp Down Time = 3:00 sec.
Swing Left Ramp Up Time = 4:00 sec.
Ramp Down Time = 3:00 sec.
Drive Forward Ramp Up Time = 4:30 sec.
Ramp Down Time = 2:30 sec.
Drive Reverse Ramp Up Time = 4:30 sec.
Ramp Down Time = 2:30 sec.
Flow Control Ramp Up Time = 3:00 sec.
Ramp Down Time = 0:00 sec.