MK Diamond Products MK-Scarifier SG-5 Owner'S Manual Download Page 45

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MK-Scarifier MaiNTeNaNce

V-Belt inspection, adjustment and replacement

(A)

Remove the Cutting

Drum (See Cutting Drum

Change-out).

(B)

Locate and remove the Belt

Guard Retaining Screws us-

ing a 9/16-wrench.

(C)

Remove the Belt Guard.

(D)

Inspect the V-belt for exces-

sive wear, cracks and cuts –

if worn, proceed to step F.

(E)

Check V-belt for proper ten-

sion, if tension correct, go to

step O (proper tension is 1/2-

inch deflection of the belt).

(F)

Locate the Engine Mounting

Plate Bolts on both sides.

(G)

Loosen the Front Engine

Mounting Plate Bolts on

both sides using a 9/16-inch

wrench.

(H)

Loosen the Rear Engine

Mounting Plate Bolts on

both sides using a 9/16-inch

wrench.

(I)

Locate the V-belt Adjusting

Screw Lock Nut inside

the Cutting Drum Well.

Loosen the nut using a

9/16-inch wrench.

NOTe:

When a new belt is installed, it should be inspected and re-tensioned after the first forty-eight

(48) hours of operation.

In order to ensure the Scarifier operates at peak efficiency, the power transmission V-belt should be

inspected monthly and changed if any signs of damage and/or excessive wear is observed.

Summary of Contents for MK-Scarifier SG-5

Page 1: ...PERATING INSTRUCTIONS www mkdiamond com Caution Read all safety and operating instructions before using this equipment This owner s manual MUST accompany the equipment at all times Revision 105 Manual Part 158537 SG 9 SG 5 01 2014 ...

Page 2: ...tain your MK Scarifier safely and correctly Please take the time to familiarize yourself with the MK Scarifier by reading and reviewing this manual Read and follow all safety operating and maintenance instructions If you should have questions concerning your MK Scarifier please feel free to call our friendly customer service department at 800 421 5830 Regards MK Diamond NOTE THIS INFORMATION FOR F...

Page 3: ...NPACKING ASSEMBLY Unpacking 14 Contents 14 Transport 14 Handlebar 15 Scarifier Drum Scarifier Drum Cutter 16 Drum Configuration 17 18 Assembly 19 20 ASSEMBLY Assembly 21 24 SETUP Vacuum Setup 25 Filling Oil Reservior Fuel Tank 24 25 Pre start Inspection 26 Setup 27 28 Operation 29 30 Cleanup 30 31 MAINTENANCE Maintenance 32 47 THEORY Theory of Scarifying 48 ACCESSORIES Accessories 49 ORDERING RETU...

Page 4: ...potential hazards that could hurt you or others Each safety message is preceded by a safety alert symbol and one of three words DANGER WARNING or CAUTION DANGER You WILL be KILLED or SERIOUSLY INJURED if you do not follow directions WARNING You CAN be KILLED or SERIOUSLY INJURED if you do not follow directions CAUTION You CAN be INJURED if you do not follow directions It may also be used to alert ...

Page 5: ...ing If in doubt use the next heavier gauge The smaller the gauge number the heavier the cord USE PROPER APPAREL DO NOT wear loose clothing gloves neckties rings bracelets or other jewelry that may be caught in moving parts Non slip footwear is recommended Wear protective hair covering to contain long hair SECURE WORK Clamps or a vise should be used to hold work whenever practical Keeping your hand...

Page 6: ...facturer does not assume responsibility for any accident due to equipment modifications USE RECOMMENDED ACCESSORIES Always ensure that the machine is on level ground before using When loading or unloading the machine use caution Remove the blade prior to hoisting loading and transporting the machine TRANSPORT A blade or cutter should always be installed so that rotation is in the direction of the ...

Page 7: ...Keep hands feet hair and clothing away from all moving parts to prevent injury Never operate the motor with covers shrouds or guards removed OVER SPEED NEVER tamper with the governor components or settings to increase the maximum speed Severe personal injury and damage to the engine or equipment can result if op erated at speeds above maximum ELECTRICAL SHOCK NEVER touch electrical wires or compon...

Page 8: ...SITION 65 MESSAGE Some dust created by power sanding sawing grinding drilling and other construction activities con tain chemicals known to the State of California to cause cancer birth defects or other reproductive harm Some examples of these chemicals are Lead from lead based paints Crystalline silica from bricks cement and other masonry products Arsenic and chromium from chemically treated lumb...

Page 9: ...equipment grounding conductor to a live terminal Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in doubt as to whether the tool is properly grounded Use only 3 wire extension cords that have 3 prong grounding plugs and 3 pole receptacles that accept the tool s plug Repair or replace a damaged or worn cord immediately WARNIN...

Page 10: ...I outlet See the pump manual and informational tags enclosed separately for all pump information ON ON CAUTION DO NOT EXPOSE TO RAIN For maintenance care and operation of the electric motor refer to your electric motor instruction book let furnished with the electric motor Protect the electric motor from dust as much as possible and keep ventilating openings clean Before plugging in the machine ma...

Page 11: ...ersized extension cords will be repaired or replaced totally at the customer s expense There will be no warranty claim To choose the proper extension cord Locate the length of extension cord needed in the table below Once the proper length is found move down the column to obtain the correct AWG size required for that length of extension cord To reduce the risk of electrocution keep all connections...

Page 12: ...ding silicosis In addition California and some other authorities have listed respirable crystalline silica as a substance known to cause cancer For manuals and parts lists scan the qR code with your smart phone DANGER Lethal exhaust gases Use only in well ventilated areas DO NOT use indoors DO NOT operate this equipment before reading the owner s manual WARNING SAFETY LABEL LOCATIONS Safety labels...

Page 13: ... The Scarifiers use a 6 inch diameter 8 inch long cutting drum with 6 hardened steel shafts that will accommodate the most common cutting discs The Scarifier is designed to grind surfaces remove old coatings prepare surfaces before applying new coatings roughen surfaces groove surfaces and slot surfaces Depending on cutting wheel style production rate varies from 350 to 500 square feet per hour fo...

Page 14: ...state zip Code phoNe Fax e mail produCt model part NumBer maChiNe serial MK DiaMonD Warranty CarD q tile distriButor q home CeNter q equipmeNt supply house q tool supply q Bldg material supply q reNtal equipmeNt house are you a do it yourselFer q or CoNtraCtor q IF so what type tile q masoNry q other what Criteria was importaNt iN ChoosiNg this saw rate From 1 to 5 5 BeiNg the most importaNt power...

Page 15: ... the user A Locate the Handlebar retain ing bolts B Remove the Retaining Bolts using 9 16 wrenches and or sockets C Raise or lower the Handle bar as needed D Align one set of Retaining Bolt holes in the Handlebar to the holes in Scarifier Frame E Install the Retaining Bolts and tighten using 9 16 wrenches and or sockets NOTE Do not rotate saw to rest on handlebar Engine damage will result ...

Page 16: ...oval of paint epoxy urethane adhesive and heavy dirt grease and oil deposits 18 tooth hardened steel 2 OD x 5 8 ID x 1 4 Average life of 500 to 800 square feet Maximum cutting rate is 1 16 per pass Used for paint and oil removal traffic and shop floor safety line removal cleaning and concrete preparation 12 tooth hardened steel 2 OD x 9 16 ID x 1 4 Average life of 500 to 800 square feet Maximum cu...

Page 17: ...17 MK SCARIFIER Drum CONFIGURATIONS Steel Drum Configuration for Removal General Purpose Cleaning Drum Configuration 120 Steel Cutters 246 Spacers S 6 Shafts 84 Carbide Stars 192 Spacers S 6 Shafts ...

Page 18: ...18 MK SCARIFIER Drum CONFIGURATIONS 1 Groove Drum Configuration 5 Stripe Line Drum Configuration 42 Carbide Stars 288 Spacers S 6 Shafts 123 Steel Cutters 231 Spacers S 6 Shafts ...

Page 19: ...arifier to the starting position G Repeat Steps A through E until the Surface is level See Figure 1 A Configure the Cutting Drum for Grooving B Adjust the Cutting Drum Depth until the Scarifier is cutting grooves approximately 1 8 of an inch C Move the Scarifier in a smooth forward motion D Should the Cutting Discs loose contact with the surface repeat Step B and continue forward motion E Repeat S...

Page 20: ...g Drum as necessary to increase the roughness of the surface C Scarifier in a smooth forward motion D Should the Cutting Discs loose contact with the surface repeat Step B and continue for ward motion E Repeat Steps A through D until the desired roughness is achieved See Figure 3 Roughening or Preparing a Surface Direction of Movement Set depth to contact the surface Maintain set cutting depth ...

Page 21: ...r to expose the end of the Cutting Drum Shaft E Remove the Shaft Retain ing Nut Cover from the Belt Guard to expose the Shaft Retaining Nuts F Rotate counterclockwise to using a 15 16 inch socket loosen the Outer Shaft Re taining Nut G Place an index finger on the end of the Cutting Drum Shaft H Remove the Outer Shaft Re taining Nut using your middle finger as shown I Repeat Step H for the Inner S...

Page 22: ...tting Drum and Shaft NOTE Assembly is opposite of disassembly CUTTING DRUM DISASSEMBLY A Rotate the Cutting Drum onto either end and locate the Retaining Ring Retaining Screws B Remove the 3 Retaining Screws using a 7 16 inch wrench C Remove the Drum Retaining Ring The Cutting Drum may be disassembled from either end NOTE D If present remove the three Flat Washer Spacers E Place the Retaining Ring...

Page 23: ... using Cutting Discs and Disc Spacers See Cutting Drum Configuration E Obtain the Retaining Ring and Flat Washer Spacers H Install the 3 Retaining Screws into the Cutting Drum do not cross thread the screws C Continue with Step B until the Cutting Drum assembly is complete F Install the 3 Flat Washer Spacers if used over the 3 Retaining Ring Retaining Screw holes I Tighten the 3 Retaining Screws u...

Page 24: ...en the Shaft Outer Retaining Nut B Verify the Cutting Drum and Shaft are fully installed and seated E Obtain the Shaft Outer Retaining Nut H Install the Shaft Retaining Nut Cover onto the Belt Guard C Install the Shaft Inner Re taining Nut F Install the Shaft Outer Retaining Nut I Pivot the Shaft Guard Cover into position and install the Rear Retaining Bolt FILLING OIL RESERVOIR SAE 10W 30 is reco...

Page 25: ...an oil gasoline mixture 3 Use unleaded gasoline with a pump octane rating of 86 or higher NOTES NOTE WARNING Refer to Engine Manual for details VACUUM SETUP FOR OPERATION The Scarifier is designed for use with a vacuum MK Diamond recommends using a vacuum to re duce the amount of dust generated during operation MK Diamond does not endorse any specific vacuum type but does recommend the customer us...

Page 26: ...roximately 1 4 inch in length When the carbide disc is worn to the end of the carbide tip the tip may fall out leaving a small hole NOTE A Inspect the Cutting Discs for excessive wear and missing tips B Inspect Engine for leaks C Inspect the Scarifier for general damage and or loose hardware D Verify the Height Adjust ing Wheel moves freely and moves up and down smoothly E Verify the Scarifier rol...

Page 27: ... the Engage Disengage Lever is in the Lift position B Raise the Cutting Drum to the highest position C Place Fuel Valve in the ON position D Place Choke Lever in the CLOSED position E Move the Throttle Lever to 1 3rd open F Place Engine Switch in the ON position G Pull Starter Cord slowly until slack is removed and resistance is felt H Pull Starter Cord straight back in a smooth fast motion I Plac...

Page 28: ... C Place the Engage Disengage Lever in the Lower position D Adjust the height of the Cut ting Drum for the Job being performed See Basic Grind ing Techniques E Locate the Vibration Lock F Lock the height of the drum using the Vibration Lock G Adjust the speed by using the Throttle as desired H Push the Scarifier at a smooth even pace to per form the cut I Place the Engage Disengage Lever in the Li...

Page 29: ...own A Verify the Engage Disengage Lever is in the Lift position D Place Engine Master Switch in the OFF position B Raise the Cutting Drum to the highest position E Place Fuel Valve in the OFF position C Move the Throttle Lever to lower blade speed ...

Page 30: ...Engine parts are extremely hot following use allow engine to cool 1 2 hour before cleaning Use care during cleanup to avoid injury 1 To extend operating life the scarifier should be cleaned following every use 2 Using a garden hose or pressure washer can force water into the air cleaner or muffler opening 3 Use care when cleaning around electrical components A Clean the Scarifier with soap and wat...

Page 31: ...emove the Cutting Drum See Setup Section H Clean the Shaft Penetration Hole of the Cutting Drum I Clean the Cutting Drum Shaft New Maintenance Perform the following after initial purchase and operation of the saw A Change engine oil after 1st month or 1st 20 operating hours See Engine Manual B Check and adjust tension on all V belts following 1st 48 hours of operation See V belt Inspection ...

Page 32: ... D be performed MK SCARIFIER MAINTENANCE A Shutdown the Engine See Normal Engine Shutdown B Check Air Filter for cleanliness See Engine Manual C Lubricate arbor in drum Clean engine throttle linkage with a dry cloth D Lubricate the Cutting Drum Shaft E Reinstall the Cutting Drum F Lubricate the outer surface of the Cutting Drum G Lubricate the Front Wheel Assembly H Lubricate the Rear Wheel Assemb...

Page 33: ...cate the Height Adjusting Wheel Bearing C Lubricate the Depth Control Screw D Lubricate the Cutting Drum Shaft Bearings E Lubricate the Front Wheel Assembly Bearings F Clean engine Air Filter See En gine Air Filter Inspection Cleaning and Replacement Monthly Maintenance The following should be performed monthly Items should be lubricated using a waterproof grease ...

Page 34: ...e Engine Manual C Clean and Readjust engine Spark Plug See Engine Manual C Inspect V belts See V Belt Inspection Adjust ment and Replacement D Check Adjust Idle Speed Check Adjust Valve Clear ance Shop Maintenance Required E Check Fuel Line 2 Year Maintenance Only Shop Maintenance Required Perform the following maintenance every year Yearly and Two Year Maintenance Perform the following maintenanc...

Page 35: ...el can damage paint and plastic Be careful not to spill fuel when filling the fuel tank Damage caused by spilled fuel is not covered under the warranty 2 DO NOT use stale or contaminated gasoline or an oil gasoline mixture 3 Use unleaded gasoline with a pump octane rating of 86 or higher WARNING Checking Oil Level NOTEs 1 Engine Oil Capacity is 1 16 US qt 1 1 l 2 When installing the Oil Dipstick e...

Page 36: ...oil Refer to Engine Manual for specific procedures SAE 10W 30 is recommended for general use Other viscosity oil shown in the chart below may be used when the average temperature in your area is within the recommended range NOTES A Lower the Scarifier to its low est position B Free the Oil Drain Line C Place a catch basin below the Oil Drain Line and re move the Drain Cap using two 1 2 inch wrench...

Page 37: ...ES A Place Fuel Valve in the OFF position B Loosen the Fuel Sediment Cup See Engine Manual for details Fuel Sediment Cup Cleaning Spark Plug Adjustment and Replacement 1 Gasoline is highly flammable and explosive You can be burned or seriously injured when handling fuel 2 To fuel stop engine if running and allow it to cool 3 Refuel in a well ventilated area 4 Keep gasoline away from appliance pilo...

Page 38: ...t Retain ing Nut Cover from the Belt Guard to expose the Shaft Retaining Nuts C Using a 15 16 inch socket loosen the Outer Shaft Re taining Nut Retaining Nuts are left hand threaded D Place an Index Finger on the end of the Cutting Drum Shaft E Remove the Outer Shaft Re taining Nut using your Middle Finger as shown F Repeat Step C through E for the Inner Shaft Retaining Nut WARNING Cutting Drum Ch...

Page 39: ...ner Retaining Nut M Obtain the Shaft Outer Retaining Nut N Install the Shaft Outer Retaining Nut O Using a 15 16 inch socket tighten the Shaft Outer Retaining Nut P Install the Shaft Retaining Nut Cover onto the Belt Guard Q Pivot the Shaft Guard Cover into position and install the Rear Retaining Bolt R Tighten the Shaft Guard Cover Retaining Bolts using 9 16 wrenches and or sockets ...

Page 40: ...Drum D If present remove the three Flat Washer Spacers E Place the Retaining Ring and the 3 Flat Washer Spacers in a secure location F Pull the Cutting Disc Shafts and remove the Cutting Discs and Disc Spacers G Assemble the Cutting Drum using Cutting Discs and Disc Spacers See Cutting Drum Configuration H Continue with Step B until the Cutting Drum as sembly is complete I Place the Cutting Drum o...

Page 41: ...ng Screw holes L Place the Retaining Ring onto the end of the Cutting Drum aligning the Retaining Screw Holes M Install the 3 Retaining Screws into the Cutting Drum do not cross thread the screws N Tighten the 3 Retaining Screws using a 7 16 inch wrench O Install the Cutting Drum See Cutting Drum Change out MK SCARIFIER MAINTENANCE ...

Page 42: ... MK Diamond Part 160300 A Inspect the Dust Screen Brushes for wear B Loosen the end of each Brush Holder with a Flat Blade Screwdriver C Slide each Brush out of its Brush Holder D Obtain Replacement Brushes E Slide the new Brushes into the Brush Holders F Pinch the end of the Brush Holders to hold each Brush in place ...

Page 43: ...aining Collars toward the center of the Axle and then slide the Axle out of the Scarifier D Obtain 2 replacement Wheels and remove the Dust Cover from one side of each Wheel E Seat the Front Wheels into the Wheel well with the Dust Cover side facing inward F Slide the Axle through one Wheel Install the 2 Retain ing Collars and then slide the Axle through the second Wheel G Push the Retaining Colla...

Page 44: ... ing Nuts using 3 4 inch wrenches D Remove the Rear Wheel Truck Assembly Re taining Bolts E Lower the Rear Wheel Truck Assembly F Remove the Rear Wheel Retaining Cotter Pin Shim Washer and Rear Wheel from each side of the Assembly G Obtain replacement wheels H Install the new Rear Wheel Shim Washer and Cotter Pin on each side of the Assem bly I Install the Rear Wheel Truck Assembly Retaining Nuts ...

Page 45: ...Engine Mounting Plate Bolts on both sides G Loosen the Front Engine Mounting Plate Bolts on both sides using a 9 16 inch wrench H Loosen the Rear Engine Mounting Plate Bolts on both sides using a 9 16 inch wrench I Locate the V belt Adjusting Screw Lock Nut inside the Cutting Drum Well Loosen the nut using a 9 16 inch wrench NOTE When a new belt is installed it should be inspected and re tensioned...

Page 46: ...gine and Cutting Drum Pulleys N Verify the V belt is seated in all grooves of the Engine and Cutting Drum Pulleys O Pull the front of the Engine Mounting Plate away from the Frame to tension the V belt P Tighten the V belt Adjust ing Screw one turn using a 9 16 inch wrench Q Verify the tension of the V belt proper tension is 1 2 inch deflection of the belt R Repeat Steps P and Q until proper tensi...

Page 47: ...6 inch wrench T Tighten the Engine Mounting Plate Bolts on both sides us ing a 9 16 inch wrench U Install the Belt Guard V Tighten the Belt Guard Retaining Screws us ing a 9 16 wrench W Install the Cutting Drum See Cutting Drum Change out MK SCARIFIER MAINTENANCE ...

Page 48: ... carbide inserts tend to be the most commonly used due to their extended life As the disc is used more of the carbide insert is exposed until the disc is worn below the bottom of the insert Once worn below the insert the disc must be replaced The purpose of scarifying is to make scratches superficial incisions or roughen a surface There are a number of ways in which a concrete surface can be rough...

Page 49: ...ghteen Point Sharp Tooth Steel Disc Used for roughening oil removal carpet and tile adhesive removal cleaning and surface preparation Average Life 500 to 800 Sq Ft 4 158495 Twelve Point Blunt Tooth Steel Disc Used for paint and oil removal traffic and shop floor safety line removal cleaning and surface preparation Average Life 500 to 800 Sq Ft 5 158575 Hardened Steel Spacer Used to fill empty spac...

Page 50: ...saw Have the Serial Number of the saw Have the location of where the saw was purchased Have the date when the saw was purchased Contact Customer Service for approval to return the item s Obtain a Returned Goods Number RGA authorizing the return Follow the packaging instructions in the following section Ensure your item s are prepaid to the destination For returned items call toll free to 800 421 5...

Page 51: ... MK DIAMOND PRODUCTS INC will guarantee every machine they build to be free from defects in material and workmanship for 1 one year from date of purchase The obligation of MK DIAMOND PRODUCTS INC under this warranty is limited to the repair or replacement of any parts which under normal use prove to be defective in material or workmanship The parts involved or the unit in question should be return...

Page 52: ...MK SCARIFIER OWNER S MANUAL OPERATING INSTRUCTIONS MK Diamond Products Inc 1315 Storm Parkway Torrance CA 90501 Toll Free 800 421 5830 Phone 310 539 5221 Fax 310 539 5158 www mkdiamond com ...

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