Chevrolet Silverado / GMC Sierra. Manual — part 2383
Fig. 22: Rotating J 45405 To Bottom Against Die Cage
Courtesy of GENERAL MOTORS CORP.
20. Select the appropriate forming mandrel and place into the forming ram.
21. Rotate the hydraulic fluid control valve clockwise to the closed position.
22. Rotate the body of the J 45405 until it bottoms against the die cage. See Special Tools.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 23: Bottoming Forming Mandrel Against Clamping Dies Using Pipe Flaring
Tool
Courtesy of GENERAL MOTORS CORP.
23. While guiding the forming mandrel into the exposed end of pipe to be flared, operate the
lever of the J 45405 until the forming mandrel bottoms against the clamping dies. See
Special Tools.
24. Rotate the hydraulic fluid control valve counterclockwise to the open position to allow the
hydraulic forming ram to retract.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 24: Using Pipe Flaring Tool
Courtesy of GENERAL MOTORS CORP.
25. Insert the finishing cone into the forming ram.
26. Rotate the hydraulic fluid control valve clockwise to the closed position.
27. Rotate the body of the J 45405 until it bottoms against the die cage. See Special Tools.
28. While guiding the finishing cone into the exposed end of pipe to be flared, operate the lever
of the J 45405 until the finishing cone bottoms against the dies. See Special Tools.
29. Rotate the hydraulic fluid control valve counterclockwise to the open position to allow the
hydraulic forming ram to retract.
30. Loosen the die clamping screw and remove the dies and pipe.
31. If necessary, lightly tap the dies until the die halves separate.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 25: Identifying Correct Brake Pipe Flare Shape & Diameter
Courtesy of GENERAL MOTORS CORP.
32. Inspect the brake pipe flare for correct shape and diameter (a).
Specification:
6.74-7.10 mm (0.265-0.279 in) flare diameter for 4.76 mm (3/16 in) diameter pipe
8.57-9.27 mm (0.344-0.358 in) flare diameter for 6.35 mm (1/4 in) diameter pipe
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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