ARMY TM 5-5420-212-23
MARINE CORPS TM 08676A-23/2
When using compressed air, wear safety goggles or glasses and ensure that air blast is not
directed towards another person.
Use compressed air to remove dust, dirt and other foreign matter from rollers.
Check to ensure that rollers are not binding, cracked, or worn. If so, report condition to Depot Maintenance
and replace with a complete new assembly.
Check headless pin (6) location holes are not elongated. If holes are elongated report condition to Depot
Remove cotter pins (1) from headless pin (2) which secures carrier (3) to base (4).
Remove headless pin (2) and lift out carrier (3).
Access to inner cotter pins is gained from beneath the carrier. Place carrier on its side.
Remove cotter pins (5) from headless pin (6).
Remove headless pin (6) and remove roller assembly (7) from carrier (3).
Repeat procedure for other roller assembly.
Install new roller assembly (7) in carrier (3), with spring pin (8) positioned in U-shaped slot (9) in carrier.
Insert headless pin (6) through carrier and roller.
Insert cotter pins (5), one in each end of headless pin (6), and bend the prongs in opposite directions
around the pin.
Repeat procedure for other assembly.
Position carrier in base and insert pin (2), then fit cotter pins (1) bending prongs around the pin.