SPRING 3T7120 - Caterpillar

Track Roller Frame
Illustration 1 g03592107
Illustration 2 g03592139
Recoil spring assembly
The track roller frames can be separated into two sections. The front section has a tube assembly. The tube assembly telescopes into the rear track roller frame.Reference: Refer to Systems Operation, KENR5631, "Track Roller Frame" for more information on the track roller frames.Track Roller
Illustration 3 g03593396The track rollers are fastened to the minor bogies.Each track roller frame has eight track rollers. Four of the rollers are single flange rollers. Four of the rollers are double flange rollers.Note: Some machines are equipped with only single flange rollers. Rollers are arranged in the following sequence. Start at the front of the machine.No. 1 Roller - Single flangeNo. 2 Roller - Single flangeNo. 3 Roller - Double flangeNo. 4 Roller - Double flangeNo. 5 Roller - Double flangeNo. 6 Roller - Double flangeNo. 7 Roller - Single flangeNo. 8 Roller - Single flangeReference: Refer to Systems Operation, KENR5631, "Track Roller" for more information on the single flange track rollers.Track Idler
Illustration 4 g03593622Each track roller frame has a front idler and a rear idler.Reference: Refer to Systems Operation, KENR5631, "Track Idler" for more information on the single flange track rollers.Tracks
Illustration 5 g03593777The machine has sealed, lubricated track. Each track assembly has the following components: links, pins, bushings, thrust rings, polyurethane seal assemblies, rubber stoppers and polyurethane plugs.Reference: Refer to Systems Operation, KENR8943, "Tracks" for more information on the tracks.Equalizer Bar
Illustration 6 g03594099
Front View
The track roller frames are connected together at the front of the machine by the equalizer bar.Reference: Refer to Systems Operation, KENR5631, "Equalizer Bar" for more information on the equalizer bar.Pivot Shaft
Illustration 7 g03594156The track roller frames are connected together at the rear of the machine by the pivot shaft. the pivot shaft is also connected to the main frame of the machine.Reference: Refer to Systems Operation, KENR5631, "Pivot Shaft" for more information on the pivot shaft.Major Bogies
Illustration 8 g03594256There are four major bogies that turn on sealed. lubricated cartridge pins. The front and rear major bogies support an idler and a minor bogie. The two middle major bogies support minor bogies.Minor Bogies
Illustration 9 g03594737There are 16 minor bogies (8 per side of the tractor) that pivot on sealed, lubricated cartridge pins. Each of the minor bogies support two track rollers.Sprocket Segments
Illustration 10 g03598156 There are five sprocket segments attached to each final drive.