UNDERCARRIAGE / Upper And Lower Roller MAINTENANCE STANDARD Upper Roller C A W1V7-03-06-002 Unit: mm (in) Remedy A B C Replace B NOTE: Values in [ ] are just for reference. W3-6-12 Standard Allowable Limit 100 (3.9) － 190 (7.5) － 150 (5.9) [140 (5.5)]