SCREEN GP-MAGNETIC 2349246 - Caterpillar

Pivot Shaft
Pivot Shaft (Section Taken Through Track Roller Frame)
(1) Bushing. (2) Track roller frame. (3) Bushing. (4) Pivot shaft.Roller frames (2) are connected at the rear by pivot shaft (4). The pivot shaft is also connected to the machine main frame.Each roller frame can oscillate (turn) at the pivot shaft. The frames oscillate on large bronze bushings (1) and (3) in a sealed oil compartment in each roller frame.Equalizer Bar
Equalizer Bar
(1) Equalizer bar saddle. (2) Rubber pads. (3) Roller frames. (4) Equalizer bar.Roller frames (3) are connected together at the front by equalizer bar (4). A sealed joint connects the equalizer bar to the track roller frame.A special bearing that does not need lubrication is installed in the center of the equalizer bar.On top of the equalizer bar are rubber pads (2). These pads control the amount of oscillation of the equalizer bar.Track Roller Frame
Track Roller Frame
(1) Rear roller frame. (2) Access port (for track adjustment cylinder). (3) Recoil oscillation guide (under cover) (4) Front roller frame.
Recoil Assembly
(5) Valves. (6) Cylinder assembly. (7) Piston. (8) Tube assembly. (9) Recoil spring. (10) Retainer.
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.
The track roller frame can be separated into two sections. Front section (4) has tube assembly (8) which telescopes (slides) into rear roller frame (1).Inside tube assembly (8) are recoil spring (9) and the track adjuster. A groove is machined in the outer diameter of the tube assembly. A recoil oscillation guide (3) is installed in rear roller frame (1).After installation, recoil oscillation guide (3) is in alignment with the groove in tube assembly (8). The recoil oscillation guide prevents any rotation of the tube assembly inside the rear section of the roller frame. The recoil oscillation guide does allow the tube assembly to slide in and out during recoil.Valves (5) are used for moving the front roller frame to adjust the track. Grease is pumped into valves (5) and causes piston (7) to move to the right.The movement causes front roller frame (4) to move out of rear roller frame (1). The movement of the recoil rod and front idler tightens the track. The tension on the track is released by a relief valve.Cartridge Pin Assembly
Cartridge Pin
(11) Inner collar. (12) Outer collar. (13) Thrust rings. (14) Duo-Cone seals. (15) Bushing. (16) Pin.The major and minor bogies pivot (turn) on sealed and lubricated cartridge pins.The main components of the cartridge pins are pin (16), collars