STICK GP-HOE 3439458 - Caterpillar

Undercarriage
Undercarriage1. Track.2. Rear roller frame.3. Front roller frame4. Rear idler.5. Pivot shaft6. Track rollers.7. Front idler.The main components of the undercarriage are pivot shaft (5), equalizer bar, track roller frames [front frame (3) and rear frame (2)], track rollers (6), idlers [front (7) and rear (4)], recoil and track adjuster group (inside front roller frame), and tracks (1).Pivot shaft (5) connects the roller frames to the tractor main frame. Each roller frame can oscillate (turn) at the pivot shaft.The equalizer bar connects the two roller frames at the front of the tractor. The oscillation of the roller frames is controlled by the equalizer bar.The track roller frames consist of front frame (3) and rear frame (2). The front idler (7) is installed on the front frame. Rear idler (4) and track rollers (6) are installed on the rear frame. A recoil and track adjuster group installed in front roller frame (3) protects the undercarriage and final drives from overloads and keeps the tracks adjusted.Tracks (1) are sealed and lubricated for increased wear.Pivot Shaft
Pivot Shaft (Section Taken Through Track Roller Frame)
1. Tractor main frame. 2. Seal. 3. Pivot shaft. 4. Track roller frame. 5. Bushing. 6. Bushing. 7. Retainer. 8. Cover.Pivot shaft (3) is fastened to the side of tractor main frame (1). Roller frames (4) are connected to the pivot shaft by sintered metal bushings (5) and (6). Each roller frame can oscillate (turn) at the pivot shaft. The roller frames oscillate on the sintered metal bushings in a sealed oil compartment in each roller frame.Retainer (7) is fastened to the the end of pivot shaft (3) and prevents axial movement of the track roller frame on the pivot shaft.Equalizer Bar
Roller frames are connected together at the front by equalizer bar (1). A spherical bearing (3) is 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. 7. Pin.A 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.
Equalizer Bar
1. Equalizer bar. 2. Pin. 3. Spherical bearing. 4. Seals.
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.The track roller frame can be separated into two sections. The 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. A recoil oscillation guide (3) is installed