Takeuchi TB125, Руководство оператора

Страница: 146 / 267

144
TROUBLESHOOTING
To Lower the Boom
3. Put mark (M) on the plug of the port relief
valve (2) and set screw (3).
4. Gripping the set screw (3) with a
hexagonal wrench so that it does not turn
together with the lock nut (4), loosen the
lock nut (4).
5. Turn the set screw (3) slowly 1/2 (TB145 :
1 and 1/3) turns to lower the boom.
TB145 : Serial No. 14514824 ~
Turn the set screw (3) slowly one turn to
lower the boom.
6. Check for safety and machine stability.
7. Turn the set screw (3) back to its original
position.
8. Gripping the set screw (3) with a
hexagonal wrench so that it does not turn
together with the lock nut (4), tighten the
lock nut (4).
Tightening torque:
• TB125 · 135
20 N·m (14.5 ft-lb.)
• TB145 27.5 to 31.4 N·m
(20.3 to 23.1 ft-lb.)
9. Reinstall the cover and floor mat.
If the hoe attachment must be lowered to
the ground while the engine is stopped, use
the following procedure to do so.
This operation is dangerous and requires
experience. Have it performed by a Takeuchi
sales or service outlet.
<TB125 / TB135>
When equipped with accumulator (option):
Refer to page 232 “Accumulator”.
Procedure
WARNING
¡ ¡
¡ ¡
¡
Do not approach in the area of the
ground where the hoe attachment is to
be lowered. You may be hit by dirt
falling out of the bucket or the hoe
attachment as it drops.
¡ ¡
¡ ¡ ¡
Turn the port relief valve’s set screw
slowly so that the boom lowers slowly.
Do not turn the screw more than the
specified amount.
1. Remove the floor mat (5).
2. Loosen the bolts and remove cover (1).
<TB145>
2
2
5
1
E5J001