THK KRF - Page 77

8.
Maintenance
8-35
KRF
8. Maintenance
4. Replace with the new timing belt, and mount the housing C.
Model number Bolt used Tightening torque [N·cm]
KRF4R M3×8 162
KRF5R M3×8 162
KRF6R M3×10 162
Bolt type: Hexagonal-socket-head type bolt
5. Adjust the belt tension.
* For the method to adjust the belt, see "Motor mounting method".
6. Tighten the mounting bolt of the motor mounting plate. After tightening, measure the tension
again.
Mounting bolt
Model number Intermediate ange type Bolt size Tightening torque [N·cm]
KRF4R WM, WN, WP, WQ M3×6L 125
KRF5R WM, WN, WP, WQ M3×6L 125
KRF6R WP, WQ M3×6L 125
Bolt type: Hexagonal-socket-head type bolt