Takeuchi TB225, Operator'S Manual

Page: 218 / 297

5-52
MAINTENANCE
EVERY 4000 HOURS
• Cylinders
1. Start the engine, let it run at a low-idling
speed for 10 minutes.
2. Maintain the engine at low idle, then
extend and retract each cylinder 4 or 5
times, without let them reach the stroke
end.
3. Run the engine at high speed, then extend
and retract each cylinder 4 or 5 times,
without let them reach the stroke end.
4. Set the engine back to a low idle, then
extend and contract all the cylinders 4 or 5
times to the stroke ends.
• Emergency shut-off valve (If equipped)
This operation is dangerous and requires
experience. Ask your sales or service
dealer for help.
If air is not released, the working
equipment could become slow in reacting
to the operation of the operator and show
unexpected behavior.
When removing plugs or screws, or when
disconnecting hoses, stand to the side
and loosen them slowly to gradually
release the internal pressure before
removing.
1. Place a pan under the hose (A) or (B) to
catch the waste oil.
2. Start the engine and run it at low idle.
3. Fully lower the safety lock lever to the
unlock position.
Boom
4. Hold the hose fitting (A) in place with a
wrench and slowly loosen the hose nut (1).
5. Slowly move the boom in the “Boom
lower” direction a little until there are no
more air bubbles coming from the hose
nut (1) joint.
6. Hold the hose fitting (A) in place with a
wrench and tighten the hose nut (1).
Arm
4. Hold the hose fitting (B) in place with a
wrench and slowly loosen the hose nut (2).
5. Slowly move the arm in the “Arm lower”
direction a little until there are no more air
bubbles coming from the hose nut (2)
joint.
6. Hold the hose fitting (B) in place with a
wrench and tighten the hose nut (2).