Rdso: Technical Pamphlet G73 _top_
Maintenance of high-capacity draft gears to ensure efficient draft-and-buff impact absorption during train operations. 4. Maintenance Schedules Prescribed by G73
: A comprehensive teardown where door levers are inspected for wear, and the pneumatic cylinders are serviced or replaced. Critical Adjustments
: Used concurrently to evaluate Center Buffer Coupler (CBC) knuckles and coupler body tolerances using specialized contour gauges. rdso technical pamphlet g73
Wagons maintained under the RDSO G-73 particular specifications feature heavy-duty infrastructure optimized for loop-line bulk unloading: Standard Design Values (BOBR/BOBRN Series) Mild Steel, IRS:M41, & SAILMA-350-HI Bogie System Architecture CASNUB 22NL / 22NLB / 22HS with Tapered Roller Bearings Axle Load Capacity Standard 20.32 t up to upgraded 22.9 t / 25 t variants Coupling Type High-tensile Center Buffer Coupler (CBC) Discharge Mechanism Pneumatic/Manual Bottom-Opening Flaps (4 doors / 8 flaps) End Plate & Cross Ridge Slopes
Key design parameters specified in the include: Maintenance of high-capacity draft gears to ensure efficient
Indian Railways is moving toward . Currently, G73 is prescriptive (time/km-based). However, pilot projects under the "KAVACH" ecosystem are digitizing G73 into handheld devices.
The pamphlet exclusively covers the and CST-9 bogie designs. These are the standard three-piece bogies (two side frames connected by a bolsters) used under ICF coaches. It does not cover LHB bogies (which are covered by separate documents like RDSO/2008/GB/1). Critical Adjustments : Used concurrently to evaluate Center
Approximately every 5-7 years, or immediately after a major accident investigation reveals a new failure mode.
Draft revised particular specification No. G-73(1).pdf - RDSO
Because these wagons discharge from the bottom while traveling over a specialized track hopper bunker, the doors utilize an air-assisted control system connected to the locomotive's twin-pipe or single-pipe air brake circuit. G73 details:
