127
MAINTENANCE
Every 2000 Hours
Replacing the Hydraulic Oil and
Cleaning the Suction Strainer
WARNING
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Stop the engine and allow the machine
to cool down before performing
maintenance.
• The engine, hydraulic lines and many
other parts of the machine are hot
directly after the engine is stopped.
Touching these parts will cause
burns.
• The hydraulic fluid is also hot and
under high pressure.
Be careful when loosening caps and
plugs. Working on the machine under
these conditions could result in
burns or injuries due to the hot oil
spurting out.
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Never jump off the machine. Use the
steps and handrails when climbing on
and off the machine, and always
support your body at three points with
your hands and feet.
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Oil may spurt out if caps or filters are
removed or pipes disconnected before
releasing the pressure in the hydraulic
system.
• Gradually press the air breather
button to relieve tank pressure.
• When removing plugs or screws or
disconnecting hoses, stand to the
side and loosen slowly to gradually
release the internal pressure before
removing.
1. Slew 45
°
clockwise and set the machine
to the hydraulic oil level inspection posture.
Refer to page 109 “Inspecting the
Hydraulic Oil Level and Replenishing”.
2. Remove cap nut (2).
3. Press button (3) and release the pressure
in the tank.
4. Replace the air breather filter (A).
Refer to page 126 “Replacing the Air
Breather filter”.
5. Remove the plug (10).
6. Loosen the bolts, and remove the flange (4).
7. Remove the return filter (5).
8. Place a pan for catching the spent oil
under the drain plug (7).
9. Loosen the drain plug (7) and drain the
hydraulic oil.
10. Loosen the bolts, and remove the flange
(8).
11. Remove the suction strainer (9) and
clean it.
12. Clean the inside of the hydraulic tank.
13. Install the new return filter and suction
strainer (9).
14. Install the flanges (4) and (8).
15. Tighten the drain plug (7).
16. Supply hydraulic oil up to the middle of
the sight gauge (6) from the hole of plug
(10).
17. Tighten the plug (10).
2
8
4
5
9
7
6
3
1
L3G008
10
Summary of Contents for TB175
Page 7: ...4...
Page 9: ...6...
Page 157: ...154...
Page 160: ...157 MEMO...
Page 165: ...162 SPECIFICATIONS Operating Range Mono Boom L3K0021 J K H B A E F C D G...
Page 167: ...164 SPECIFICATIONS Operating Range 2 Piece Boom L3L032 J E F G C D K H B A...
Page 169: ...166 MEMO...
Page 183: ...180...
Page 223: ...220...
Page 224: ...221 INDEX...