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62
CONTROLS
First Auxiliary Hydraulic Lines
WARNING
Oil may spurt out if caps or filters are
removed or pipes disconnected before
releasing the pressure in the hydraulic
system.
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When disconnecting hoses, release the
internal pressure before removing.
These lines deliver the hydraulic oil necessary
for operating a hydraulic breaker, crusher or
other attachments.
Stop valve ...... : Closed : Open
Connecting the Hydraulic Circuits
To connect the attachment hydraulic lines,
use the following procedures:
1. Release the pressure remaining in the lines
then close the stop valve.
Refer to “Releasing the residual
pressure”.
2. Remove the plugs.
3. Connect the attachment hydraulic lines to
ports (a) and (b).
When fitted with a hydraulic breaker,
connect the return circuit to port (b) and
the supply circuit to port (a).
4. Open the stop valves.
When fitted with a hydraulic breaker, open
the selector valve (1).
Refer to page 63 “Selector Valve”.
5. When connecting is complete, purge air
from the hydraulic lines.
a. Start and run the engine at low idle with
no load for 10 minutes.
b. With the engine running at low idle
operate the auxiliary hydraulic switches
repeatedly (approx. 10 times) to purge
air from the hydraulic lines.
c. Stop the engine and wait for more than
5 minutes until bubbles escape from the
hydraulic oil in the tank.
IMPORTANT: Follow the procedures for
purging air as instructed by the attachment
manufacturer if specified to do so.
6. Check for leaks.
Disconnecting the hydraulic circuits
1. Release the pressure remaining in the lines
then close the stop valve.
Refer to “Releasing the residual
pressure”.
2. Disconnect the lines from ports (a) and (b).
3. Install the plugs.
Releasing the residual pressure
After using the auxilliary hydraulic circuits,
pressure remains in the circuits. This is called
the residual pressure. Release this residual
pressure before disconnecting the lines.
1. Stop the engine.
2. Turn the starter switch to the ON position.
3. Fully lower the safety lock lever.
4. Within 10 minutes after the engine comes
to a complete stop, move the 1st auxiliary
hydraulic switch to the right and left several
times.
5. Place the safety lock lever to the lock
position.
W2C005
b
a
S
O
W2B018
A
B
Accessories
Содержание TB175W
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Страница 169: ...167 SPECIFICATIONS Main Speci cations 168 Machine Dimensions 170 Operating Range 172 Lifting Capacities 177...
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