Methods For Inspecting Performance - Takeuchi TB53FR Workshop Manual

STANDARDS FOR JUDGING PERFORMANCE
METHODS FOR INSPECTING PERFOR-
MANCE
Hydraulic Oil Pressure (Main Relief Valve Set
Pressure)
Boom, Arm
Measuring Method
• Engine
• 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.
Pressure Detection Port
Circuit
Port Position
Boom P1
Arm P2
Adjusting Method
1. Loosen locknut (2), then begin adjusting pressure
by turning setting screw (1).
Turning clockwise ................ raises the set pressure.
Turning counterclockwise .... lowers the set pressure.
2. In order to keep the setting screw from turning
after pressure has been adjusted, tighten the lock-
nut while at the same time holding the setting
screw firmly in place.
3. Operate the relief valve once more to confirm that
the pressure that has been set it stabilized.
: Rated r.p.m.
Relief Valve
Size
G1/4 R1
G1/4 R2
P2
R3
II-19
SPECIFICATIONS
P1
P3
J1B005
R1
R2
J1B006
TB53FR