27
Maintenance of V ring in outdoor type motor
Under aging phenomena or by abrasion, the V ring may become less water-proof.
Exchange the V ring once every three years under the normal operation. Refer to the dimension in Table 39 for V ring
attaching dimension.
V Ring
V-10A–V-18A
V-20A–V-38A
V-40A–V-65A
V-70A–V-100A
Dimension B1
4.5 mm
6 mm
7 mm
9 mm
Remarks
Table 39 V Ring Attaching Dimension
• At exchange, apply a small amount of grease to the lip of the V ring.
• We recommend the V ring made by Forsheda.
(2) Recommended Grease
Ambient
temperature
°C
-10~40 UNIREX N2
Shell stamina Grease RL2
Open bearing
Thermal Class B Thermal Class F
Shell OilExxon Mobil
Table 38 Recommended Grease
• Do not use any grease other than those shown in Table 38.
(3) Grease Supply and Discharge (Refer to Fig.20)
1 Remove the discharge plug, discharge old grease and add new grease while unit is operating.
(Grease replenishment at rest cause an insufficient grease change.)
2 Replace the discharge plug after 10min operation.
• Excessive grease may cause temperature rise of bearing or leakage of grease.
• Exceeding the recommended amount of grease does not extend the replenishment interval.
• Don't neglect daily inspection; otherwise abnormal wear and noise from the motor, damage to the bearing may result.
1 Variator side
Fig. 20 Construction of Open Bearing in the Motor
2 Motor end side
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