DFD6361-Maintenance - 第473页
E-37 1-3-3. Cl eaning t he spindle main bod y Procedur e for cleani ng the spi ndle main body CAUTION - Be car eful n ot to touc h the edge o f the spin dle. I f your fingers or hands to uch it, y ou may be i njured. - D…
E-36
Procedure for removing the wheel cover (Continued)
Step No.
Do This
7
Unscrew two retaining screws (M4), and then remove the wheel
cover.
ÿ
Retaining screws (M4)
Continued in the next section.
E-37
1-3-3. Cleaning the spindle main body
Procedure for cleaning the spindle main body
CAUTION
- Be careful not to touch the edge of the spindle. If your fingers or
hands touch it, you may be injured.
- Do not use the scrubbing cloth to clean the taper section. Such
cloth scratches the surface of the taper section, which deteriorates
its accuracy.
Step No.
Do This
(Continued from the previous section)
1
With wastes, clean the thrust bearing section and air curtain outlet.
With the lint-free cloth moistened with alcohol, wipe off soil on
the spindle front rid, air outlet and seal ring.
Spindle front rid
Air outlet
Taper section
Seal ring
: Cleaning area
2
Make sure that air is discharged from all round the air outlet.
3
If the air outlet is blocked with soil;
With a soft nylon brush such as toothbrush, rake out soil of the air
outlet. And then, perform the step procedures of No. 1 and 2.
Continued in the next section.
E-38
1-3-4. Completion of spindle cleaning
Procedure for completion of spindle cleaning
CAUTION
After cleaning the spindle, dry it completely. Moisture or drops of
water left on it can lead to corrosion of the spindle.
Step No.
Do This
(Continued from the previous section)
1
Wash out stains.
2
Wipe out drops of water on the spindle with clean wastes.
3
Blow air to the spindle in order to dry it.
4
If you removed the wheel cover,
- Reinstall the wheel cover piping.
- Reinstall the wheel cover.
5
Reinstall the flange or hub mount.
6
Install the blade.
FYI: Possible problems of the spindle due to stains
Generation of rust
Although the anti-corrosion stainless steel is used as the material of the spindle,
there is a possibility that rust will form on the spindle, depending on the usage
conditions, which might ultimately result in breakage of the spindle.
Generation of abnormal sound
If contamination adheres to around the outlet of air curtain, wind noise could
be emitted.
Motor failure and galling of the ball bearing section
If the air curtain function is deteriorated, the wheel coolant water will enter
inside the spindle and this could cause failure of the motor.
Also, the degraded function of the ball bearing section could result in galling.