JLG 40RTS ANSI Service Manual - Manual (Page 38)

SECTION 2 - PROCEDURES
2-22
– JLG Sizzor – 3120691
2.20 PRESSURE SETTING PROCEDURES - (4
W/S)
Racine Three Stack Valve (If Equipped)
1. Install pressure gauge at quick connect on Racine
Two Stack Valve.
2. Adjust both Steer Section Crossover Relief’s all the
way in.
3. Adjust Main Relief Cartridge out several turns.
4. Activate engine and allow hydraulic system to come
up to operating temperature.
5. Bottom out Steer function. Adjust Main Relief to
2500 psi (172 bar).
6. Bottom out Front Steer Right and Steer Left func-
tions and adjust each Steer Crossover Relief to 1500
psi (103 bar).
7. Bottom out Rear Steer Right and Steer Left functions
and adjust each Steer Crossover Relief to 1500 psi
(103 bar).
8. Bottom out Lift Overload functions and adjust Lift
Up Relief Pressure as follows:
25RTS - 1300 psi (90 bar)
33RTS - 1550 psi (106 bar)
40RTS - 2000 psi (138 bar)
9. De-energize Lift function, shut down motor, and dis-
connect pressure gauge.
Lift Down Speed Adjustment
1. Activate engine and allow hydraulic system to come
up to operating temperature.
2. Adjust color flow valve lift down speed at 30-40 sec-
onds.
Leveling Jacks Valve (If Equipped)
1. Activate engine and allow hydraulic system to come
up to operating temperature.
2. Install pressure gauge at quick connect on Racine
Two Stack Valve.
3. Energize and bottom out any jack function. Adjust
relief cartridge as follows:
25RTS - 1300 psi (90 bar)
33RTS - 1550 psi (106 bar)
40RTS - 1900 psi (131 bar)
4. De-energize jack function and shut down engine.
Remove pressure gauge.
2.21 OSCILLATING AXLE LOCKOUT
CYLINDER BLEEDING PROCEDURE
NOTE: Ensure platform is fully lowered to open the cam
valve prior to beginning oscillating axle lockout cylin-
der bleeding procedure.
1. Making sure that machine is on a level surface and
rear wheels are blocked, disengage drive hubs.
NOTE: All drive hubs must be unlocked on machines
equipped with 4WD.
.
Figure 2-23. Drive Hub Disconnect