Yamaha YK-X Series User Manual page 142

CHAPTER 5 Periodic Inspection
2. Y-axis
1) Prepare the following tools and items.
• Harmonic grease 4B No.2
• Waste cloth (rag)
• Phillips screwdriver
• Hex wrench set
• Screw Lock (thread sealant)
• Torque wrench
• Replacement parts (See table below.)
YK500XG, YK600XG
Parts name
Harmonic drive
q Rubber wire diameter 1.78mm × Ring inner diameter 72.75mm
w Rubber wire diameter 1.50mm × Ring inner diameter 49.00mm
O-ring
e Rubber wire diameter 0.99mm × Ring inner diameter 53.28mm
YK600XGH, YK700XG, YK800XG, YK900XG, YK1000XG
Parts name
Harmonic drive
q S90(JIS)
w Rubber wire diameter 1.78mm × Ring inner diameter 66.40mm
O-ring
e Rubber wire diameter 1.3mm × Ring inner diameter 66.50mm
2) Turn off the controller.
3) Place a sign indicating that the robot is being inspected, to keep others from
operating the controller switch.
4) Enter the safeguard enclosure.
5) Remove the cover. (See Fig. 5-8.)
6) Unplug the connectors on the Y-axis motor power wire YM and resolver wire
YP in the Y-axis arm. Also disconnect the Y-axis motor ring-tongue terminal.
7) Remove the bolts securing the Y-axis motor, and slowly pull out the Y-axis
motor while turning the Y-axis joint. (See Fig. 5-9.)
Items in parentheses ( ) apply to the YK600XGH and YK700XG to
YK1000XG.
CAUTION
!
An O-ring w is fitted to the motor. Replace this O-ring with a new one.
(See Fig. 5-12.)
Replacement parts
Type No.
SHG-20-80
Replacement parts
Type No.
SHG-25-80
5-20
YAMAHA Parts No.
KBF-M2510-000
KN4-M257K-000 Lower part of harmonic drive
KN3-M2143-000 For motor
KN3-M2144-000 Supplied with harmonic drive
YAMAHA Parts No.
KBP-M2510-000
KN4-M2143-000 Lower part of harmonic drive
90990-17J030 For motor
KN5-M257L-000 Supplied with harmonic drive
Note
Note