Swivel Brake Valve Pressure - Kubota KX080-3 Workshop Manual

WSM KX080-3 Service
h. Swivel brake valve pressure
1)
4)
7)
5)
3)
2)
5)
6)
IV-S-46
(Measurement method)
1. Set the pressure gauge to the coupler at the
main pump discharge side. Or remove the plug
off the main pump discharge side and set the
pressure gauge there.
2. Bring the bucket in contact with a solid block.
Slowly move the bucket toward the block. With
the engine at 1500 rpm, measure the relief pres-
sure.
3. Hydraulic oil tempreture must be 50 ± 5°C, 122
± 9°F.
Reference valve : See Specifications
1) Primary pilot pressure port
2) Pump 1 pressure port
3) Pump 2 pressure port
4) Pump 3 pressure port
5) Swivel motor, ORV
6) Anti-swivel back valve
7) Negative brake timer
Hydraulic system