82
TOTAL LIFE SCALE
Management & Merchandising
Maintenance/Rebuild/Replace
Action Symbols
(M) — Measurement or Inspection
Point
(T) — Sealed Track Pin and Bushing
Turn
(Td) — Sealed and Lubricated Track
Dry Bushing Turn
(Tw) — Sealed and Lubricated Track
Wet Bushing Turn
(R-Sw) — Track Roller Swap
(CR-Sw)— Carrier Roller Swap
(I-Sw) — Idler Swap
(REB) — Link, roller, etc. (welding
rebuild)
(REP) — Pin and Bushing or Bushing
and Seal Replacement
(SEG) — Segment Replacement
(REG) — Regrouser Shoe
////// — Unutilized Link or other major
component life remaining
(X) — Destruction of limiting track
component — indicated end
of effective track or other com-
ponent life
(O) — Denoted action taken on
component