HYDRAULIC SYSTEM RT540E SERVICE MANUAL
2-18 Published 4-20-2015, Control # 502-01
Table 2-1
Valve Pressure Setting Table
Valve To Be Set
Pressure
Setting
PSI (MPa)
Tolerance
PSI (MPa)
Adjustment Location
Hoist (s), and Lift Pressure Setting
4000 (27.6) ± 50 (0.4) GP2 - Superstructure mounted main
directional control valve load sense
relief valve (Figure 2-9)
Telescope Extend Pressure Setting 2700 (18.6) ± 50 (0.4) GP7 - Superstructure mounted main
directional control valve port relief
valve (Figure 2-10)
Telescope Retract Pressure Setting 3000 (20.7) ± 50 (0.4) GP7 - Superstructure mounted main
directional control valve port relief
valve (Figure 2-10)
Outrigger Extend/Retract/Rear Steer/Oil
Cooler Motor Pressure
2500 (17.3) ± 50 (0.4) GP2 - Carrier mounted outrigger
control manifold (Figure 2-11)
Swing Left and Right Work Port Relief
Pressures
2100-2450
(14.5 - 16.9)
See Range GP1 - Superstructure mounted
accessory manifold with swing
directional control valve (Figure 2-9)
Front Steer Pressure Setting 2500 (17.3) ± 50 (0.4) GP5 - Superstructure mounted
accessory manifold with swing
directional control valve (Figure 2-9)
Swing Brake Supply Pressure Setting 250 - 275
(1.7 - 2.1)
See Range GP4 - Superstructure mounted
accessory manifold with swing
directional control valve (Figure 2-9)
Pilot Supply Pressure Setting 2500 - 2550
(17.3 - 17.6)
See Range GP3 - Superstructure mounted
accessory manifold with swing
directional control valve (Figure 2-9)
Non-CE Cranes
Piston Pump
P Pressure Setting
CE Cranes
Piston Pump
P Pressure Setting
325 - 400
(2.2 - 2.8)
525 - 550
(3.6 - 3.8)
See Range GP2 - Carrier mounted piston pump
(Figure 2-13)
Service Brake High Charge Limit 2320 (17.4) +72, -145
(0.5) (1.00)
GP7 (Figure 2-10) Non-adjustable
Service Brake Low Charge Limit 1950 (13.5) ±145 PSI (1.00) GP7 - (Figure 2-10) Non-adjustable
Service Brake Accumulator Pre-charge 800 - 850
(5.5 - 5.8)
See Range Accumulator (Figure 2-12)
Reference Only
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