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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
1
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Summary of Contents for Most ROCKNIFE RK465
- Page 1 ROCKNIFE™ RK465 Product Manual Table of Contents Rocknife™ Diagram Main Assembly Bearing Mandrel Assembly Lower Housing Assembly Static Piston Assembly RK465 LockingLid™ & Isolators Rebuild Procedures Rebuild Kit & Service Instructions...
- Page 8 ROCKNIFE™ RK465 Rebuild Procedures 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. Once broken free, it takes 11-12 revolutions to separate the two NOTE: Lower Housing and OBH are threaded together with LEFT- pieces.
- Page 9 Use 1/4" hex drive to remove two screws from Split Remove Bearing Mandrel from Lower Housing. Use chain Ring. Remove Split Ring, clean, and set aside. wrench to pull Mandrel forward (can also tap on end of shaft). Remove and discard 3 Wiper Seals from Lower Housing. Leave Spiral Retaining Ring in Lower Housing.
- Page 10 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.
- Page 11 Clean Bearing Mandrel of all grease. Heat, front and rear radial sleeves to break down adhesive under them. Using jaw-type pliers or chain wrench, break radial sleeves loose and remove from Mandrel. Set sleeves aside to cool and retain sleeves for later.
- Page 12 Bearing Mandrel: Once Mandrel is cool, use emery cloth to clean front and rear seal sleeve areas. Test fit new sleeves on each area and repeat with emery cloth until sleeves slide on and shoulder up easily. Remove both sleeves, clean all parts with degreaser, and allow to dry.
- Page 13 Static Piston: Install two external o-rings on Piston. Install three U-Cup seals in Piston. Install first seal with u-cup facing front of Piston. Install second and third seal with u-cup facing back of piston. Install seal back-up spacer, Use grease to help keep it in place.
- Page 14 Mount Bearing Mandrel Assembly in chain vise. Install Front Bearing Spacer. Internal radius on spacer should face front of Mandrel and fit snugly just behind Front Seal Sleeve. Apply grease to each sleeve on Bearing Mandrel.
- Page 15 Slide Lower Housing Assembly onto Mandrel. You will need to apply a little pressure when Wiper Seals ride over Front Sleeve. Install Bearing Spacer Ring. It will fit snugly up against last Radial Bearing.
- Page 16 Install 51210 Thrust Bearing (race, bearing cage, race), applying grease between each piece of the bearing. Orientation of Bearing Cage does not matter. Install Shaft Collar and torque bolts to 25 ft-lbs.
- Page 17 Install two 51309 Bearings. Apply grease between each piece (race, bearing cage, race, race, bearing cage, race). Orientation of Bearing Cage does not matter. Apply light coat of copper thread compound to external threads of Lower Housing. Do NOT apply grease to box threads in Outer Bearing Housing.
- Page 18 Carefully slide Outer Bearing Housing onto Bearing Mandrel. Use hoist to assist and to help keep threads in alignment. Carefully reposition assembly in chain vise with vise around Lower Housing. Thread Lower Housing onto Outer Bearing Housing. NOTE: left-hand threads.
- Page 19 Continue to thread Outer Bearing Housing until it shoulders up with Lower Housing. Remove any excess thread compound and mark shouldered connection with permanent marker. Tighten connection using 36” pipe wrench until there is 3/8” to ¼” separation between mark. Install Grease Fitting in fill port, pump grease into Fitting until grease comes out Exit point.
- Page 20 ROCKNIFE™ RK465 Rebuild Kit & Service Instructions Rebuild Kit — Part #RK465RBK Daily: Grease motor bearings every 8-10 hours. PART NUMBER DESCRIPTION For maximum life out of your bearings use Rocknife™ grease. 400ATSP Bearing Spacer Ring Rebuild motor every 80-100 hours. 400ATBK Seal Back-Up Spacer 400ATPT...
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