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Inspection and Adjustment
SW502, TW502
1) Disconnect hose (1) from the front
propulsion motor at the high pressure inlet
port for low amplitude or hose (2) at the
high pressure inlet port for high amplitude.
Fit adapter
t.
★
TW502 has the front vibrator alone.
2) Install a 0-24.5 MPa (0-250 kgf/cm
2
)
pressure gauge to adapter
y.
3) Start the engine. Set the throttle lever to
the high idle position.
4) Select LOW amplitude or HIGH amplitude
by actuating the amplitude selector switch.
Operate the vibrator mode selector switch
from OFF to MANUAL mode ( ). Then
switch on the vibrator on-off switch located
on top of F-R lever, and take the pressure
gauge reading.
★
Use similar procedure for the measurement
of the rear vibrating unit.
2. Adjustment
★ If the measured valve falls outside the
permissible range, renew the relief valve
assembly.
★
The valve is of a non-serviceable type. Do
not attempt to adjust it.
Carefully perform disassembly and
reassembly taking necessary means to
avoid entry of foreign matter.
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