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20-23-11-991-071 Fig. 272
3. Job Set-up
__________
Subtask 20-23-11-860-055
A. Safety Precautions
(1)
Obey the safety procedures of the hydraulic system (Ref. TASK 29-00-00-910-002).
(2)
Make sure that the related hydraulic reservoirs and the related hydraulic systems are depressurized (Ref. TASK 29-00-00-864-001) and (Ref. TASK 29-14-00-614-001)
4. Procedure
_________
Subtask 20-23-11-917-078
A. Equipment
(Ref. Fig. 268/TASK 20-23-11-991-067)
(1) RYNGLOK Installation Tooling. For the installation of RYNGLOK unions, you must use these tools:
(a) Swage tool
NOTE : There are two types of swage tools: old generation and new
____ generation. To swage the unions, you can use the old-generation tools or the new-generation tools.
1 Old-generation swage tools.
_
-RTST(X)-01-SIZE standard swage tool This tool pushes the union ring onto the union body to make the swage.
-RTST(X)R-01-SIZE reversed swage tool This tool pulls the union ring onto the union body to make the swage. You can use this tool to swage the unions where access is not easy:
-at or near a bulkhead or an adjacent fitting
-when you cannot use the standard tool.
-RTST(X)R-51-SIZE special reversed tool
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RYNGLOK installation Tooling Figure 268/TASK 20-23-11-991-067- 12 (SHEET 1)
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RYNGLOK installation Tooling Figure 268/TASK 20-23-11-991-067- 22 (SHEET 2)
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You must use the special reversed tool where there is an
opposite fitting end or forging body size larger than the
dash size of the fitting end to be swaged.
This special reversed tool has a colored band and the
required pressures are identified on the tool body.
2_ New-generation swage tool
- RTST(X)-02-SIZE push/pull swage tool
This new-generation tool replaces the standard (push) and
reversed (pull) tools for easier installation especially in
areas where access is not easy.
(b)
Pressure pump The pump can be:
-
a hand pump, AEROQUIP P/N 10-00400A
-
a foot-operated air/hydraulic intensifier, AEROQUIP P/N 10-00401A
-
a switch-operated air/hydraulic intensifier, AEROQUIP P/N 10-00402.
(c)
RTSGO-51-SIZE inspection gages Use these tools to make sure that the swage is correct (full movement of the ring).
(d)
RTSGO-01-SIZE marking gages Use these tools to make installation marks on the tubes.
(2) Union assemblies Before you start the installation, make sure that you use the correct union assemblies. (Ref. Fig. 269/TASK 20-23-11-991-068)
Subtask 20-23-11-917-079
B. Tubing Repair (Ref. Fig. 270/TASK 20-23-11-991-069)
(1) Single-union repair You can use a single-union repair if the length of the defect is in the specified limits (L max). There are two methods for a single-union repair:
(a) Method 1: You remove (cut out) the part of the tube that has the defect.
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