TM 9-2320-272-10
2-24.
OPERATION OF MEDIUM WRECKER (Contd)
f.
Securing Crane After Operation.
(1)
Secure outriggers (4), two boom jacks
(3), tie bar (6), and boom jack base plates (5).
Refer to step d.
NOTE
When retracting boom, pull crowd control
lever back to RETRACT and hoist control
lever back to UP to prevent block from
becoming tangled.
(2)
Fully retract boom (1) into shipper
(2) and center boom (1) to rear of wrecker.
(3)
Remove retaining clip (11) from
upper retaining brackets (7) and swing shipper
braces (8) to shipper brace brackets (9) on
wrecker body. Secure shipper braces (8) in
place with L-shaped retaining pins (10) and
retaining clip (12).
(4)
Push boom control lever (17) forward to DOWN to allow shipper braces (8) to support boom (1) and weight of
shipper (2).
(5)
Install lifting sling (15) onto crane block hook (14). Attach hook ends of sling (15) to brackets (16) on
outrigger (4).
(6)
Pull hoist control lever (18) back to UP and remove all slack from lifting sling (15) and boom cable (13).
2-144
