Maintenance
‑142‑
Specifications and Dimensions
Motor Flange Size
Dimensions of the Flat
Key
Specifications of the Disassembly
Bolt (Inner Hexagon Bolt)
Flange size 40
Type‑A flat
key—A3x3x14
No disassembly hole
Flange size 60
Type‑C flat
key—C5x5x16.5
M3x10 and above
Flange size 80
Type‑C flat
key—C6x6x25
M3x15 and above
Flange size 100
Type‑C flat
key—C8x7x35
M3x20 and above
Flange size 130
Type‑C flat
key—C8x7x35
M3x20 and above
Flange size 180
Type‑C flat
key—C10x8x64
M3x20 and above
● Tool needed: an Allen wrench
● Disassembly procedure:
1. Select a proper disassembly bolt (inner hexagon bolt recommended) based on
the motor model.
2. Use an Allen wrench to screw down the bolt clockwise until A‑A end of the flat
key is completely detached from the keyway, as shown below.
4.3.2 Disassembling the Motor Oil Seal
● Tools needed: a pair of needle‑nose pliers, a pair of slip‑proof gloves, and a piece
of cotton cloth
● Procedure:
1. Put the cotton cloth onto the supporting point B to avoid the end cover from
being scratched during disassembly.
2. Secure the motor and use the needle‑nose pliers to hold point A of the oil seal
lip.
3. Pry the oil seal out gradually against the supporting point B.
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