SERVICE DATA
PERFORMANCE CRITERIA
5
2
PERFORMANCE CRITERIA
2D0AX002
Hydraulic oil pressure (Slew)
Measurement method
• Engine:
Maximum R.P.M.
• Hydraulic oil temp.: 50°C to 60°C (122°F to 140°F)
• Install a pressure gauge on the pressure detection
port. Operate the hydraulic circuit to be tested, and
measure the relief pressure. (Secure the upper struc-
ture so that it cannot slew in the direction to be mea-
sured.)
Adjustment method
The set pressure cannot be adjusted while the relief
valve is attached to the slew motor. If adjustments need
to be made, replace the relief valve assembly.
Hydraulic oil pressure (Pilot pressure)
Measurement method
• Engine:
Maximum R.P.M.
• Hydraulic oil temp.: 50°C to 60°C (122°F to 140°F)
• Install a pressure gauge on the pressure detection
port to measure the relief pressure.
Adjustment method
1. Loosen the locknut (1), and turn the setscrew (2) to
adjust the set pressure.
• Turn the setscrew clockwise to increase the set
pressure.
• Turn the setscrew counterclockwise to decrease
the set pressure.
2. In order to keep the setscrew (2) from turning after
the pressure has been adjusted, tighten the locknut
(1) while holding the setscrew (1) firmly in place.
Locknut: 15.7 N·m (11.6 ft.-lb)
3. Operate the relief valve once more to confirm that the
pressure that has been set is stabilized.
Circuit
Relief valve
Pressure detection port
Port
Size
Right slew
SR1
A3
G1/4
Left slew
SR2
Relief valve
Pressure detection port
Port
Size
PRB
PB
G1/4
A3
R3
Summary of Contents for TB215R
Page 1: ...CC8E005 WETB215R_A XI Seral No 215000003...
Page 3: ...SAFETY 1...
Page 13: ...SERVICE DATA 2...
Page 16: ...SERVICE DATA DIMENSIONAL DRAWING 3 2 DIMENSIONAL DRAWING 2A0AX001 Operating range 2A0AX02...
Page 53: ...SERVICE DATA WIRE HARNESS DIAGRAM 2 2 WIRE HARNESS DIAGRAM 2H0AX00 Body harness 03342 68000...
Page 54: ...SERVICE DATA WIRE HARNESS DIAGRAM 3 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 55: ...SERVICE DATA WIRE HARNESS DIAGRAM 4 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 56: ...SERVICE DATA WIRE HARNESS DIAGRAM 5 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 57: ...SERVICE DATA WIRE HARNESS DIAGRAM 6 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 58: ...FUNCTION 3...
Page 88: ...DISASSEMBLY AND ASSEMBLY 4...
Page 125: ...DISASSEMBLY AND ASSEMBLY OPERATING DEVICE 6 4 OPERATING DEVICE 4F0AX00 Hydraulic piping...
Page 230: ......
Page 232: ...TROUBLESHOOTING 5...
Page 287: ...Other 6...