PLATFORM AS 2698661 - Caterpillar

Equalizer Bar
Roller frames are connected together at the front by equalizer bar (1). Spherical bearings (3) are installed in both ends of the equalizer bar. Pins (2) connect the equalizer bar to the roller frames. Seals (4) keep foreign material out of the bearings.
Equalizer Bar
(1) Equalizer bar. (2) Pin.
Equalizer Bar
(1) Equalizer bar. (2) Pin. (3) Spherical bearing. (4) Seals.Powdered metal bearing (5) is pressed into the center bore of the equalizer bar. Pin (7) connects equalizer bar to the main frame of the tractor. Seals (8) keep foreign material out of the bearing.The equalizer bar pivots (turns) on pin (7). Stops in the equalizer bar saddle control the amount of oscillation of the equalizer bar.
Pivot Area of Equalizer Bar
(1) Equalizer bar. (5) Bearing. (6) Tractor main frame. (7) Pin. (8) Seal.Track Roller Frame
Track Roller Frame
(1) Pivot shaft housing. (2) Access port (for track adjustment cylinder). (3) Recoil oscillation guide. (4) Seal. (5) Front roller frame. (6) Rear roller frame. (7) Shims.
Front Section of Track Roller Frame
(8) Valves. (9) Cylinder. (10) Piston. (11) Retainer. (12) Recoil spring.The track roller frame can be separated into two sections. Front section (5) has a large tube assembly which telescopes (slides) into rear roller frame (6). Inside the tube are recoil spring (12) and track adjuster. A groove is machined in the outer diameter of the tube.Recoil oscillation guide (3) is installed in rear roller frame (6). After installation, the oscillation guide is in alignment with the groove in the tube. The oscillation guide will prevent any rotation of the tube inside the rear section of the roller frame, but will allow the tube to slide in and out during recoil. Seal (4) keeps the oil in and dirt out of the recoil spring compartment.Valves (8) are used for moving the front roller frame to adjust the track. Grease is pumped in the fill valve and causes piston (10) to move to the right. This movement causes the front roller frame to move out of the rear roller frame. The movement of the recoil rod and front idler tightens the track. The tension on the track is released by a relief valve.
To prevent personal injury, never visually inspect the vent holes or valves to see if grease or oil is coming out of them. Make sure the vent holes are clean before the tension is released on the track. Watch the front roller frame to see that it moves.
Shims (7) allow the height of the front idler to be adjusted for various tractor applications.Track Rollers
The track rollers are fastened to the roller frames. The track rollers are in contact with the inside surfaces of the track links. Flanges on the track rollers prevent the movement of the track from side to side. The inside surfaces of the track links give equal distribution of the weight of the machine along the track.Each track roller frame has seven track rollers, four single flange and three double flange. Starting at the front of the machine, the