Schwing SP ROCK Bedienungsanleitung
SERVICE REPAIR INSTRUCTIONS FOR
THE SP ROCK VALVE
DOCUMENT #98330783 5900 Centerville Road
St.Paul, MN 55127
Tel 651-429-0999
Fax 651-429-3464
www.schwing.com
REV. 10/25/14
Service Manual
Small Rock Valve
1
Small 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 rec-
ommendations.
1. WARNING! Read and understand the operation manual of the machine before attempting any repairs. If in
doubt, call the manufacturer. Incorrectly done repairs endanger operational safety of the machine.
2. WARNING! Burning hazard! Never work on a hydraulic system with hot oil.
3. WARNING! Falling hazard! If you cannot work at ground level, you must use a suitable work platform.
4. WARNING! If maintenance work requires that you use a crane, hoist, fork truck, etc., you must read and
understand the safety regulations for that equipment.
5. WARNING! If working the machine requires that it be operated, and you are not qualified as an operator, you
must get someone who is qualified to assist you.
6. WARNING! If you will be working in a hidden area inside the machine, protect yourself by taking the key
from the ignition and putting a “DO NOT OPERATE” sign on the controls. In the case of electrically driven
units, disconnect the main circuit breaker and lock it in the disconnected position.
7. WARNING! Never activate the system hydraulics without checking if another workman is in a hidden posi-
tion. Always yell “CLEAR”, and allow time for response, before starting the prime mover.
8. WARNING! Never use gasoline or diesel fuel as a cleaning solvent. This is critical to remember when clean-
ing hydraulic oil reservoirs, because gas and diesel fuels are highly explosive, and gasoline or diesel fuel traces
left in the oil may ignite when compressed.
9. WARNING! Always use the correct tools for the job. Tools should be kept clean, and in good condition.
10. If you see a co-worker engaging in an unsafe practice, explain the dangers. Safety is always in the hands of
those on the job.
11. WARNING! Never work on a pressurized hydraulic system. Stop the prime mover and relieve the accumulator
circuit (if so equipped) before you open the hydraulic system.
WARNING
READ FIRST!
Service Manual
Small Rock Valve
2
Rock Valve Parts Identification and Clearance Specifications
Cording must be to
outside when installed
Lubrication grooves MUST face
out from Rock Valve
Kidney or Outlet Plate
Kidney Seal
Spectacle or Inlet Plate
Rock Housing
Cutting Ring
Rock Valve
Pressure Spring
Bushing
Seal Cover
Dimensions shown are
with all new wear parts.
Tension Nut
Locking
Bolt
Locking
Washer
Centering Screw
Outlet Flange
Setting Disc
1.5 - .2.0mm
(.060 - .080")
A
Service Manual
Small Rock Valve
3
Small Rock Valve Lubrication Points
Use a grease gun with the recommended grease listed in the chart below. Locate the grease points, clean the grease
fitting before filling it, and inject grease until you see old grease displaced by the new grease. Lubricate the grease
points at 8 hour intervals and whenever the machine work is completed for the day.
Minimum Specifications for grease.
Lithium base high-pressure grease KP 2 K per DIN 51502.
BP
MOBIL
SHELL
TEXACO
ARAL
ESSO
OPTIMAL
Energrease LS2
Mobilith AW 2
Alvania grease R2
Multifak 20
HLP 2
Beacon 2
Olitsa longtme 2EP
Grease Points
Grease Points
Service Manual
4
Small Rock Valve
Friction
Friction Friction and
stone crushing
Friction and
stone crushing
max 1.5mm
0.590"
Cutting Ring
max 1.5mm
0.590"
Cutting Ring
Housing Lining Housing Lining
Lengthening the Service Life of
the Spectacle Plate and Cutting
Ring
Conditioned by outside influences (material
variations), as well as by differing work strains
on partial sections, the cutting ring and the
housing lining wear out unequally.
The grooves resulting from operation are
irrelevant as long as the armouring is not worn
out completely.
Spectacle or Inlet Plate
Cutting Ring
To ensure uniform wear and, thus, considerably
longer service lives, we recommend the
following:
1. Move the Rock Valve to the left and right
end position once a week after thorough
cleaning, and check the condition of both the
Cutting Ring and the Housing Lining.
2. Turn the Cutting Ring 90 degrees when there
is a clearance greater than 1.5mm-2.0mm
(.0590”-.0590”) between the Cutting Ring
and the Housing Lining. The Cutting Ring
typically wears at the 3 and 9 o’clock posi-
tion. Turning the Cutting Ring 90° will
ensure uniform wear and lengthen the ser-
vice life.
Service Manual 5
Small Rock Valve
Rotate the Cutting Ring 90˚ clockwise
Securing Bolts
B
Inlet Housing Lining
Cutting Ring
Rock Valve
Pressure Spring
Check for the gap at several points along the
Cutting Ring circumference, and always turn the
Cutting Ring in the same direction.
It is only necessary to loosen the Securing Bolts
of the Housing Cover approximately 10mm
(.3937”) in order to release the Pressure Spring
and turn the Cutting Ring.
3. Check the distance between the Cutting Ring
and the Rock after each turn of the Cutting
Ring. If it exceeds 8mm (.315”), the preten-
sion of the Pressure Spring is not enough to
correctly press the worn cutting ring up
against the Spectacle Plate. In this case, the
Cutting Ring has to be replaced
Service Manual
6
Small Rock Valve
Locking Bolt
Tension Nut
Tension Nut
Setting Disc
Rebuilding the Rock Valve
1. Remove the Locking Bolt from the Tension
Nut.
2. Loosen the Tension Nut.
NOTE: It’s ok to remove the Tension Nut with
a wrench, but it must never be tightened more
than hand tight
3. Remove the Tension Nut.
4. Remove the Setting Disc
Service Manual 7
Small Rock Valve
Alignment Rod
C
L
Locking Bolt
Stop Washer
5. Install the alignment rods
• SAI Part #30309007
6. Slide the rear housing cover back slightly.
7. Center Rock Valve using a pry bar, so the
lever is straight up.
8. Remove the Locking Bolt for the Cylinder
Pin on the Slewing Yoke
9. Using a drift punch, drive pin out of the hole.
10. Pull yoke up and out of the slew lever. Move
out of the way and tie up.
Service Manual
8
Small Rock Valve
Slew Lever
Disk
12 x 30 Bolt
Pressure Spring
Kidney Seal
11. Remove 12mm bolt and lever disk from
Rock shaft
12. Remove slew lever.
13. Using a lifting device, slide Rock Valve out
of bushing and place on a work surface.
14. Remove Kidney Seal and Pressure Spring.
Clean both ends of the Rock Valve, remov-
ing all concrete debris.
Inhaltsverzeichnis
Andere Schwing Steuereinheit Handbücher
Beliebte Steuereinheit Handbücher anderer Marken
Festo
Festo Compact Performance CP-FB6-E Stücklistenhandbuch
Elo TouchSystems
Elo TouchSystems DMS-SA19P-EXTME Bedienungsanleitung
JS Automation
JS Automation MPC3034A Bedienungsanleitung
JAUDT
JAUDT SW GII 6406 Series Kurzanleitung
Spektrum
Spektrum Air Module System Bedienungsanleitung
BOC Edwards
BOC Edwards Q Series Bedienungsanleitung
