Specalog for D7G Series 2 Track-Type Tractor, AEHQ5716

UndercarriageThe Caterpillar undercarriage is designed for optimized machine balance and best possibleperformance and component life.Roller Frames. The track roller frameis a reinforced box section constructionwith six lifetime lubricated track rollersper side and outside mounted carrierrollers, two per side.Rollers and Idlers. Feature symmetricDuo-Cone seals for long sealing life toprevent oil loss and dirt entry. Toric ringsmaintain performance over a wide rangeof temperatures. Rollers and idlers areserviceable and rebuildable to providevalue. Abutment-style caps securelyattach rollers and idlers to the bogies.All idlers, track and carrier rollers arelife-time lubricated and require noperiodic maintenance intervals.Track Shoes. Track shoes are availablein sizes to match the working conditions.Guards. Front and rear guiding guardsare standard.Sealed and Lubricated Track.Minimizes internal bushing wear withthe pin by a thin film of lubricantand retained by a polyurethane seal.This extends the service life of theundercarriage as a system.6