Most ROCKNIFE RK465 User manual

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ROCKNIFE™ RK465
Product Manual
Table of Contents
2 | Rocknife™ Diagram
3 | Main Assembly
4 | Bearing Mandrel Assembly
5 | Lower Housing Assembly
6 | Static Piston Assembly
7 | RK465 LockingLid™ & Isolators
8 | Rebuild Procedures
20 | Rebuild Kit & Service Instructions

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Stabilize housing by placing Lower Housing in chain vice.
Drive out 3/8” coiled spring pin from Collar on rear of Housing.
Remove Collar.
Remove Outer Bearing Housing (OBH) using large pipe wrench.
NOTE: Lower Housing and OBH are threaded together with LEFT-
HAND threads.
Once broken free, it takes 11-12 revolutions to separate the two
pieces. Set OBH aside.
NOTE: OBH weighs 115 lbs. Use caution when removing.
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ROCKNIFE™ RK465
Rebuild Procedures

Using punch or screwdriver, remove and discard 7
Radial Bearings from Lower Housing.
Remove and discard 3 Wiper Seals from Lower Housing.
Leave Spiral Retaining Ring in Lower Housing. Do not
remove. Thoroughly clean and remove all grease from
Lower Housing, including external threads.
Set Housing aside.
Use 1/4" hex drive to remove two screws from Split
Ring. Remove Split Ring, clean, and set aside. Remove Bearing Mandrel from Lower Housing. Use chain wrench to pull Mandrel forward (can also tap on end of
shat).
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Remove Front Bearing Spacer, clean, and set aside. Remove Thrust Bearings (2x) from Outer Bearing
Housing until Static Piston is exposed.
Once Static Piston is exposed, install two 6-inch machine screws (included in Rebuild Kit) to assist in
removal of Piston. Position Removal Tool as shown (included in Rebuild Kit) and pull to remove piston.
Once Static Piston is free, remove machine screws (set aside and save for later), remove and discard
internal seals, and remove and discard external o-rings. Thoroughly clean Static Piston and set aside.
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