YASKAWA MA1440 Operating And Maintenance Manual page 55

1
Item number
11 Protective tube
12 Battery unit in robot
13 S, L, U, R, B and T-axes gear
14 Overhaul
1. The item numbers correspond with the following figure, "Inspection intervals."
2. When checking for conduction with multimeter, connect the battery to "BAT" and "OBT" of the plug connections of the respective motor. Now remove the connectors of the encoders of the
respective motor. Failure to observe this sequence can lead to loss of home positions (see section 9.3 "Note on maintenance" on page. 60).
3. The internal wiring harness in the robot (for the S, L, U, R, B and T axes) must be replaced at the 24,000 hours inspection.
4. The grease or lubricants used can be found in the following table, "Inspection points and greases used."
Inspection intervals
Schedule (h) Method
 Visual inspection


  Grease gun

Tab. 9-1: Inspection intervals
Operation
Inspect the protective tube for holes, cracks and
adhesion of welding spatters (replace if neces-
sary).
Refer to manual "OPTIONS FOR PROTECTIVE
TUBING (VELCRO TYPE) REPLACING PRO-
CEURES".
If a battery alarm appears or after the robot has
been operated for 36000 hours, the battery must
be exchanged.
Check for malfunctions (replace if necessary).
4
The grease must be refilled every 6000 hours
and exchanged every 12000 hours (see Chapter
9.4 "Refill/Replace grease." and 9.4 "Refill/Re-
place grease.").
To be per-
formed by:
1 2 3
  
  
 
 
