II-20
SPECIFICATIONS
STANDARDS FOR JUDGING PERFORMANCE
METHODS FOR INSPECTING PERFOR-
MANCE
Hydraulic Oil Pressure
Travel
Measuring Method
• Engine : Maximum R.P.M.
• Hydraulic Oil Temp. : 50~60°C
• Insert the pressure gauge into the pressure detec
-
tion port and fit pipe (1) over the travel motor
sprocket to disable the motor. Next start up the
hydraulic circuit to be tested and measure the re-
lief pressure.
Circuit
Pressure Detection Port
Relief
Valve
Port Position
Size
Left Travel
(forward)
P1 G1/4 R1
Right Trav-
el (forward)
P2 G1/4 R2
Lift Arm, Bucket
Measuring Method
• Engine : Maximum R.P.M.
• Hydraulic Oil Temp. : 50~60°C
• Mount the pressure gauge on the pressure detec
-
tion port, operate the desired hydraulic circuit and
measure the relief pressure.
Circuit
Pressure Detection Port
Relief
Valve
Port Position
Size
Arm, bucket
P3
9/16-
18UNF
R3
T7B007
C
P1
P2