TM 9-2320-260-20
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
EQUIPMENT CONDITION
APPLICABLE MODELS
q Parking brake set (TM 9-2320-260-10).
M820, M820A1, M820A2
q Van body fully expanded (TM 9-2320-260-10).
MATERIALS/PARTS
q End panels in full open position
Three cotter pins
(TM 9-2320-260-10).
REFERENCES (TM)
GENERAL SAFETY INSTRUCTIONS
TM 9-2320-260-10
Support hinged roof panel before removing
TM 9-2320-260-20P
counterbalance cable.
Support hinged roof panel before removing counterbalance cable.
Failure to do so may cause injury to personnel.
1. Support hinged roof panel.
2. Remove cotter pin (1), clevis pin (3), and clevis (2) from vertical drop arm (4). Discard cotter pin (1).
3. Remove cotter pin (5), clevis pin (6), roller (8), and counterbalance cable (9) from roller bracket (7).
Discard cotter pin (5).
4. Remove cotter pin (12), clevis pin (14), and roller ( 11) from counterbalance cable (9) and
counterbalance arm (13). Discard cotter pin (12).
5. Remove turnbuckle (15) from turnbuckle eye (16).
6. Remove counterbalance cable (9) from two cable guides (10).
1.
Position counterbalance cable (9) through two cable guides (10).
2. Install turnbuckle (15) on turnbuckle eye (16).
3. Install roller (11) over counterbalance cable (9) and on counterbalance arm (13) with clevis pin (14)
and new cotter pin (12).
4. Position counterbalance cable (9) on roller (8) and install roller (8) on roller bracket (7) with clevis
pin (6) and new cotter pin (5).
5. Install clevis (2) on vertical drop arm (4) with clevis pin (3) and new cotter pin (1).
6. Adjust turnbuckle (15) until counterbalance cable (9) is tight.
7. Remove hinged roof panel support.
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