Related Manuals for Schwing ROCK
Summary of Contents for Schwing ROCK
- Page 1 SERVICE REPAIR INSTRUCTIONS FOR THE "ROCK" VALVE DOCUMENT #799000 5900 Centerville Road REV. 10/23/07 St.Paul, MN 55127 Tel 651-429-0999 Fax 651-429-3464 www.schwing.com...
-
Page 3: Table Of Contents
TABLE OF CONTENTS Safety Instruction .............................1 Rock Valve Parts Identification - “M” Rock ...................2 Rock Valve Parts Identification - “E” Rock ....................3 Rock Valve Parts Identification - “B” Rock ....................4 Rock Valve Lubrication Points ........................5 Rotating The Cutting Ring ........................6 Replacing the Cutting Ring ........................8... - Page 4 TABLE OF CONTENTS...
-
Page 5: Safety Instruction
SERVICE TRAINING Rock Valve Rock Valve Safety Instruction When performing maintenance on Schwing Equipment, the safety regulations must be followed. The observation of these regulations is the responsibility of the maintenance personnel. The following are some supplementary recommendations. WARNING READ FIRST! 1. -
Page 6: Rock Valve Parts Identification - "M" Rock
SERVICE TRAINING Rock Valve Rock Valve Parts Identification - “M” Rock ivot Lever Cover Bolt Bearing Bushing Bearing Bushing Cover Sealing Cover Cover Slewing Lever Wearing ivot Bushing Insert (Right Hand) "M" Rock Valve Housing ivot Bushing Wearing Sleeve Insert... -
Page 7: Rock Valve Parts Identification - "E" Rock
SERVICE TRAINING Rock Valve Rock Valve Parts Identification - “E” Rock Pivot Lever Cover Cover Bolt Bearing Bushing Cover Bearing Bushing Sealing Slewing Lever Cover Pivot Bushing Wearing Insert (Right Hand) "E" Rock Valve Housing Pivot Bushing Wearing Insert (Left Hand) -
Page 8: Rock Valve Parts Identification - "B" Rock
SERVICE TRAINING Rock Valve Rock Valve Parts Identification - “B” Rock Cover Pivot Lever Cover Bolt Bearing Bushing Bearing Bushing Cover Sealing Cover Slewing Lever Pivot Bushing Wearing Insert (Right Hand) "B" Rock Valve Housing Pivot Bushing Wearing Insert (Left Hand) -
Page 9: Rock Valve Lubrication Points
Grease the rock valve lubrication points before the pour begins. Once you start pumping, grease them every couple of hours. There are six zerks to grease for the rock valve, plus the two for the agitator. If your unit is equipped with an auto-lube, greas- ing is accomplished automatically. -
Page 10: Rotating The Cutting Ring
Schwing recommends going clockwise each time.) 9. Be sure that the ring is centered in the rock valve. Tighten the cover bolts slightly, if needed, to be sure that the ring isn’t cocked one way or the other. - Page 11 SERVICE TRAINING Rock Valve 10. Be sure there is no debris between the back cover and the rock valve housing. If there is, clean it out. Tighten the cover bolts just enough to bring the back plate up against the rock housing.
-
Page 12: Replacing The Cutting Ring
SERVICE TRAINING Rock Valve Replacing the Cutting Ring 1. Loosen the bolt on the Pivot Lever a few turns with a 30 mm wrench. 2. Remove the Housing End Cover Bolts with a 36 mm. wrench. Service Manual... - Page 13 SERVICE TRAINING Rock Valve 3. Pry the End Cover away from the housing as far as the Pivot Lever will allow. ivot Lever ry Bar 4. Remove the Cutting Ring, and replace it with the new part. 5. When reassembling, make sure that the Cut- utting ring ting Ring fits correctly and that the Pressure...
-
Page 14: Pressure Spring
Kidney Seal would result. The Tension Nut adjusts the Kidney Seal area of the Rock Valve ONLY. To check or adjust, remove the Keeper Bolt will line up with a threaded hole in the Setting Disc. If you are between two holes, loosen the Tension Nut so it lines up with the previous hole. -
Page 15: Determining Wear On Kidney Seal And Kidney Plate
Rock Valve. If you will be repairing the Rock, or trouble- shooting a problem, always fill the hopper with water to the top of the Rock Valve before switch- ing. Figure 3 Service Manual... -
Page 16: Replacing The Kidney Seal
SERVICE TRAINING Rock Valve Replacing the Kidney Seal Kidney Seal 1. Remove the Keeper Bolt from the Tension Nut using a 24 mm wrench. eeper Bolt 2. Remove the Tension Nut using a 60 mm. wrench. ension Nut Service Manual... - Page 17 SERVICE TRAINING Rock Valve 3. Remove the Setting Disc from the Rock pivot shaft. etting Disc 4. Remove the bolts from the End Cover and insert the two Guide/Support Rods into the upper holes using a 36 mm. wrench. Guide Rod...
- Page 18 6. Remove the Kidney Seal with a screw driver or similar tool. Kidney Seal 7. Clean the Kidney Seal groove of the Rock Valve thoroughly. 8. Replace the Kidney Seal while making sure that the flat surface is toward the End Cover.
- Page 19 SERVICE TRAINING Rock Valve 11. Replace the Tension Nut onto the Rock Pivot Shaft, and tighten it by hand. In this position, the clearance between the Rock Valve and the housing should be 1.5 to 2.0 mm. Rock 1.5 to 2.0mm...
-
Page 20: Spectacle Plate
Housing Lining recommend: 1. Moving the Rock Valve to the left and right end positions once a week--after thorough cleaning--and checking the condition of the cutting ring & housing lining. 2. Turning the Cutting Ring 90 degrees if there... -
Page 21: Replacement Of Spectacle Plate
SERVICE TRAINING Rock Valve 3. Checking the distance between the Cutting Ring and the Rock Valve after each turn of the Cutting Ring. If it exceeds 8 mm. (.31”), Inlet Housing Lining the pretension of the Pressure Spring is not... - Page 22 SERVICE TRAINING Rock Valve 2. Remove the Housing End Cover Bolts with a 36 mm. wrench. 3. Pry the End Cover away from the Housing ivot Lever Cover as far as the Pivot Lever will allow. ry Bar 4. Using a 14 mm. allen wrench, remove the socket head bolts that secure the plate.
-
Page 23: Replacement Of Outlet Housing Lining (Kidney Plate) Plate
Guide/Support Rods nut using a 24 mm. wrench. 2. Remove the Tension Nut using a 60 mm. wrench. 3. Remove the Setting Disc from the Rock Pivot Shaft. Securing Bolt 4. Remove the bolts from the End Cover and insert the two Guide/Support rods into the upper holes using a 36 mm wrench. - Page 24 SERVICE TRAINING Rock Valve 7. Free the lining from the End Cover, and remove it. It is heavy...get help if needed Lining 8. Thoroughly clean the entire area that the Outlet Housing Lining touches. 9. Fit a new O-ring into the replacement lining, and reassemble by following steps 1-7 in reverse order.
-
Page 25: Replacement Of Outlet Insert (Cover Lining)
SERVICE TRAINING Rock Valve Replacement of Outlet Insert (Cover Lining) (To be replaced at the same time as the Kidney Seal and/or Outlet Housing Lining.) 1. Remove the Tapered-Bend (Reducing Elbow) from the Pipe Bend (Connection Piece). Connection Piece 2. Remove the Outlet Housing Lining (Kidney Plate) as described in the Replacement of Outlet Housing Lining section. -
Page 26: Rock Valve Body
3. Completely remove the hopper. 4. Remove the End Cover as explained in the Kidney Seal or Outlet Housing Lining replacement section. 5. Remove the bolts from the Rock Valve while making sure to support it from underneath. Service Manual... -
Page 27: Pivot Shaft
The thick rubber goes on the inside towards the concrete. Thick rubber layer 8. Check the condition of the Rock Pivot Shaft Bushings, as well as the condition of the parts mentioned in the note above, to see if Pressure Spring anything else needs to be replaced while you’ve got the unit disassembled. - Page 28 SERVICE TRAINING Rock Valve 3. Remove the Pivot Cylinder Pin Retainer Bolt and Keeper Bar. 4. Remove the Pivot Cylinder Pin from the slewing lever. Pivot Pin Service Manual...
- Page 29 SERVICE TRAINING Rock Valve 5. Move the Pivot Lever away from the Cylin- der Rod, and remove it from the shaft. 6. Remove the Pivot Shaft from the Bearing Housings. 7. Examine and, if necessary, replace the bear- ing bushings as described later.
-
Page 30: Pivot Shaft Bushing
SERVICE TRAINING Rock Valve Pivot Shaft Bushing 1. Remove the Pivot Shaft as described in the Seal Cover Pivot Shaft replacement section of this man- Bushing ual. 2. To replace the bushings, remove the Seal Cover and Bolts. Seal Cover Bushing 3. - Page 31 SERVICE TRAINING Rock Valve 5. Fit the rear bushing (pivot lever side) first with a 46 mm wrench. 6. Insert the bushing so that it is flush with the end of the bushing housing. Bushing Flush with Bushing Housing 7. Now replace the front bushing (Spectacle Plate Side) with the installation tool, tighten- ing the nut from the opposite end.
- Page 32 SERVICE TRAINING Rock Valve 8. Install a new O-ring into the Seal Cover, and secure the Seal Cover onto the 5 mm of pro- truding bushing. O-Ring 9. Remove the Bushing from the End Cover using a hydraulic press or similar tool.
-
Page 33: Setting Pivot Angles
Rod Locknut and adjust as required. iston Rod Lock Nut NOTE: After approximately setting the Piston Rod, check that the Rock Valve travels across the Spectacle Plate, and ensure that the Cut- ting Ring is centered over each port. When stopped in the end position equally on both sides. -
Page 34: Replacement Of Pivot Shaft Bushings
SERVICE TRAINING Rock Valve Replacement of Pivot Shaft Bushings When changing the pivot on a Rock Valve Slew- Bushings ing Cylinder, please be sure that you install new bushings in the pivot eyelets. These bushings are not automatically shipped with a pivot, so please order them with the pivot if you don’t have them... - Page 35 SERVICE TRAINING Rock Valve If any “clearance” is detected in the bushing of the Rock Slewing Pivot, the bushing should be checked immediately in order to prevent further damage. Bushings Pivot To check the bushing bore, drive out the thin, Teflon Coated Bushings or the Single Style...
- Page 36 SERVICE TRAINING Rock Valve If the thin, teflon coated bushings are used, they can be replaced with new ones providing that the bore diameter is 80mm to a maximum of 80.20mm. A diameter over 80.20mm must be re- worked on a boring machine and bored to 90mm and the new style solid steel bushing* pressed in.
-
Page 37: Additional Mounting Instructions For E-Rock Assembly
Additional Mounting Instructions for E-Rock Assembly The E-rock is generally assembled by the same procedure as any other standard M-Rock. Only the Rock-Extension and a Counter Nut have been added. The Back-up ring will act as an axial bearing if the Counter-Nut is in place and has been directly adjusted. - Page 38 Mounting of E-Rock-Valve and Cover The pre assembled E-Rock-Valve (supplied with kidney seal and cutting ring assembly) is pushed into the Housing till the cutting rings hit the wear insert (spectacle plate). The end-cover will then compress the E-Rock-Valve assembly and the swivel shaft will be ready to be fixed by the Adjusting nut and Locking-Ring by the following procedure:...
- Page 39 Placing the Counter-Nut at the lever side: Only the E-Rock Valve requires an additional Counter-Nut to compensate for internal thrust forces when the system is in operation. The Counter-Nut can only be adjusted after the swivel drive is completely assembled. The Counter-Nut has a pitch of 2 mm.
-
Page 40: Rock Slewing Cylinder
SERVICE TRAINING Rock Valve Rock Slewing Cylinder Pos Qty. Description Part No. Pos Qty. Description Part No. BOLT 10058467 SCREW DIN 908 R 3/8", 5.8 10001767 GREASE NIPPLE DIN 71412 CM 10 X 1, 5.8 10007884 SEALING RING DIN 7603 A 17 X 21 CU 10003956 SCREW DIN 933 M 10 X 20, 8.8... - Page 41 The electrode must be high Ni and Cr content and high elongation. For example, Huntington INCONEL #82 wire, (AWS-ERNICRS) and Huntington INCO weld A, for 1 / 8 " (Schwing Part#30352281) or 3 / 32 "(Schwing Part#30352282) electrode AWS-ENICRFE2 or equivalent.
-
Page 42: Rock Valve With Insert - Conversion
1. Weld per SAIE 5125 using E7108 and preheat to 200˚F complete 360˚ of weld circle. 2. Addition of the insert requires a depth of 2.047. So if the Rock Valve has the standard depth 1.732 then it must be machined to 2.047 at the same 9.843 Dia.
Need help?
Do you have a question about the ROCK and is the answer not in the manual?
Questions and answers