Oshkosh JLG 400S, Service And Maintenance Manual

Page: 276 / 462

SECTION 4 - BOOM & PLATFORM
4-12 – JLG Lift – 3120895
the meter for the time it takes the output to go from 0
current to maximum current. This is ramp up time.
Adjust P1 until this time matches the time in table 2.
Rotating the adjustment potentiometer clockwise
will increase ramp time. To set the ramp down time,
hold the telescope function switch and watch the
time it takes the output to go from the maximum cur-
rent down to 0 current. This is the ramp down time.
Adjust P2 until this time matches the setting in table
2. Rotating the adjustment potentiometer clockwise
will increase the ramp time.
NOTE: No ramp needed for drive forward and reverse. THe
drive pump is a slow reacting pump with internally
built in ramp up and down times.
Table 4-2. Flow Control Card Settings
S Models
Function Minimum Current Maximum Current
Lift Up 400 mA 1320 mA
Lift Down 500 mA 1500 mA
Swing Right 400 mA 935 mA
Swing Left 400 mA 935 mA
Flow Control 700 mA 1600 mA
Drive Forward (Deutz) 820 mA 1120 mA
Drive Reverse (Deutz) 820 mA 1120 mA
Drive Forward (Ford) 820 mA 1200 mA
Drive Reverse (Ford) 820 mA 1200 mA
Figure 4-9. Control Card
Table 4-3. Flow Control Card Ramp Time
Function Ramp Time
Lift Up Ramp Up Time = 2:00 sec.
Ramp Down Time = 2:00 sec.
Lift Down Ramp Up Time = 3:00 sec.
Ramp Down Time = 2:00 sec.
Swing Right Ramp Up Time = 3:50 sec.
Ramp Down Time = 2:00 sec.
Swing Left Ramp Up Time = 3:50 sec.
Ramp Down Time = 2:00 sec.
Drive Forward Ramp Up Time = none
Ramp Down Time =none
Drive Reverse Ramp Up Time =none
Ramp Down Time = none
Flow Control
(Tele, Rotate, Jib)
Ramp Up Time = 3:00 sec.
Ramp Down Time = 0:00 sec.