TM-9-2350-256-10

RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1

OPERATOR'S MANUAL

OCTOBER 2014
TM-9-2350-256-10

  TM-9-2350-256-10 - Page 47 of 796

TRACK AND SUSPENSION
•
Track Support Roller (Figure 5, Item 1)
— supports the weight of the track (Figure 5, Item 2) as it
returns to the front of the vehicle when moving. There are three support rollers per side.
•
Tracks (Figure 5, Item 2)
— consist of rubber track shoes, end connectors (with bolts and wedges), and
center guides.
•
Track Drive Hub and Sprocket (Figure 5, Item 3)
— receives power from the transmission output
reduction drives and applies it to the tracks (Figure 5, Item 2) to move the vehicle.
•
Shock Absorbers (Figure 5, Item 4)
— mounted between the first, second, and sixth roadwheel arms
(Figure 5, Item 5) and hull to dampen torsion bar (Figure 5, Item 10) action.
•
Roadwheel Arm (Figure 5, Item 5) —
connected to the torsion bar (Figure 5, Item 10). The roadwheels
(Figure 5, Item 6) mount to the roadwheel arms.
•
Roadwheel (Figure 5, Item 6)
— mounted to the roadwheel arm (Figure 5, Item 5) and rides on top of
the track (Figure 5, Item 2) providing support and guiding the track (Figure 5, Item 2). There are six sets
per side.
•
"Stop" Blocks (Figure 5, Item 7)
— welded to the hull over the second through fifth roadwheels to limit
torsion bar windup beyond allowable limits.
•
Volute Bumper Spring (Figure 5, Item 8)
— provides secondary dampening action in conjunction with
the torsion bars (Figure 5, Item 10). Mounted on the hull behind the first and sixth roadwheels.
•
Torsion Bar Anchors (hidden) (Figure 5, Item 9)
— secure the ends of the torsion bars
(Figure 5, Item 10). One anchor secures one torsion bar (Figure 5, Item 10).
•
Torsion Bar (Figure 5, Item 10)
— secured at the anchor (Figure 5, Item 9) and connected to the
roadwheel arm (Figure 5, Item 5), the torsion bar acts as a spring for the roadwheel (Figure 5, Item 6).
•
Track Adjusting Link Assembly (Figure 5, Item 11)
— provides for track (Figure 5, Item 2)
tension adjustments.
•
Compensating Idler Wheel (Figure 5, Item 12)
— used to maintain track tension while the vehicle is
crossing rough terrain.
Figure 5.
Track and Suspension.
TM 9-2350-256-10
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