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User Manual
ROX000295904
3. Pull out the inner rod with the pilot body. Be careful to avoid damaging the seal
4. Unscrew the 4 bolts (31) and remove the crane hook.
5. Partly expand the inner barrel (22) and mount the safety clamp.
6. Pull back the hammer nut (28) and unscrew set screw (8) from the union thread
7. Use a hook wrench to unscrew the union thread adapter from the inner barrel.
8. To separate the hammer nut from the union thread adapter, remove the retaining
9. Pull the inner barrel out of the rear of the outer barrel (17).
10. Unscrew 4 bolts (33) and remove lower cylinder head (25). The seal (9) can be
11. On the inner barrel (fastened in the vice with the safety clamp) remove 8 bolts (32)
12. On the inner barrel, remove pilot body (16) by unscrewing 2 bolts (30).
13. Remove one or both retaining rings (13) and pull off the non-stick coating guide (6).
14. The pilot body can be disassembled by removing the pin spring (15).
Postrequisites
All parts can now be properly cleaned and inspected. Use the nonmetallic pole, cloth, and
lubrication or cleaning solvent to clean the bores of outer and inner barrel.
After cleaning, all surfaces should be lubricated with a multipurpose lubricant that also
drives out moisture and protects against corrosion.
Mechanical retriever assembly
Prerequisites
A complete assembly drawing of the mechanical retriever tool can be found in
Mechanical Retriever
parenthetically in the following procedure.
Assembly will be done in the reverse order of the dis-assembly.
The following provides additional key points for the assembly :
Procedure
1. When installing seals (9), (10), and (11), make sure they and their grooves are
2. The tightening torque for the 8 bolts (32) for the head cover (26) is 25 N m.
3. The tightening torque for the 4 bolts (33) on the lower cylinder head (25) is 47 N m.
4. When installing the inner barrel into the outer barrel, put some thread seal tape
5. Ensure the o-ring inside the union thread adapter is in place and properly greased.
6. Ensure that the threads on the inner barrel are cleaned and greased before installing
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(10).
adapter (4).
ring (12).
Be careful to avoid damaging the seals (10) (9).
removed.
and remove the head cover (26). Seal (10) and (11) can now be removed.
Assembly, which contains the part numbers referred to
properly set in grease.
over the threads to protect the seal (9).
the union thread adapter.
Maintenance
June 2020
Roxar
37
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