TM 9-2330-390-14&P
4-83. TOP AND BOTTOM BEAMS AND POSITIONING CYLINDERS REPLACEMENT
(Con't).
8.
9.
10.
11.
NOTE
Ensure that hole at rod end of positioning cylinder is ailned with hole in top beam.
Install two fully collapsed positioning cylinders (2) inside telescoping vertical tube of top beam (1).
Install two clevis pins (13) flatwashers (14), and new cotter pins (15) on positioning cylinders (2) and top beam
(1).
NOTE
Ensure that openings for fittings in positioning cylinders are ailned with holes in bottom
beam.
With top and bottom beams (1 and 3) fully supported, install two positioning cylinders (2) on bottom beam (3).
Install two clevis pins (18), flatwashers (17), and new cotter pins (16) on positioning cylinders (2) and bottom
beam (3).
12.
13.
14.
15.
16.
Use extreme caution when raising top and bottom beams. Ensure that lifting device
is secure and all personnel stand clear. Failure to follow this warning may cause
serious injury to personnel or damage to beams and positioning cylinders.
Raise top and bottom beams (1 and 3) with positioning cylinders (2). Support beams in vertical position.
Install top and bottom lockout brackets on axle assembly and pivot axle bracket (see paragraph 4-82).
Install hydraulic lift cylinders (see paragraph 4-110).
Remove lifting device from top beam (1).
Install telescopic brace (see paragraph 4-86).
4-227
