RUIXIN PRO RX-008 Knife Sharpener Kit User Manual

RUIXIN PRO RX-008 Knife Sharpener Kit

Part 1. SETUP RX-008 KNIFE SHARPENER

1. Assemble the whetstone bracket and connect the rod (In order to prevent loosen while sharpening, you can use a screwdriver to tighten it) ( Figure 1)
   

2. . Fix the base on the table, then remove the screws on the base. ( Figure 2)
   
   

3. Secure the Angle Adjustment Post to the Base (Tighten the long rod first, then tighten the butterfly buckle firmly) ( Figure 3)
   

4. If you need to sharpen the chef knife or other kitchen knife, you can put on a silicone non-slip pad

5. Instructions on sharpening stones installation
   
   Step 1. Install the stone according to the figure 1.
   Step 2. Slightly tighten the screws at the back.

6. Installation completed as below:
   

Part 2. START SHARPENING BY FOLLOWING STEPS BELOW:

1. CHECK: Re-Check your setup of the knife sharpener.

2. Angle Adjustment:
   a) Use a protractor app on a smart phone (if it’s iPhone, APP: Measure- Level) to measure the angle of the FLAT surface of the knife blade. Add (or subtract, depending the measure) the desired bevel angle to this angle to get the angle the stone needs to be.
   b) Insert the stone holder rod into the ball joint and adjust the thumb screw to move the stone to the proper angle.
   c) Measure the stone angle and the knife angle again and re-calculate or adjust as necessary.

3. C hoose the appropriate stone from the kit: Coarse(LOW Grit) or Fine(High Grit), Difference Usage – The coarse grinding can be used to repair serious passivated blade, the fine grinding can be used to edge, consolidate the blade and daily sharpening; Start with the coarsest (lowest Grit) stone, and then to higher ones
   Kindly note: The pivot of RX-009 has a whetstone thickness compensation function, you can use different thickness whetstones by SIMPLY adjusting the height of the pivot
   

4. Steps to use the stones before and during sharpening work:
   a) Wet the stone with water. soak it for 5-10 mins before use, lubricate with water or honing oil as needed. You can soak all of them in one time to save time, and wipe off the extra water before use it.
   b). Insert the stone into the holder.
   c). Draw the stone diagonally along the blade tip to handle or handle to tip, towards the spine. Use LIGHT pressure, not much more than the weight of the stone. Slowly and smoothly.

5. Repeat 4.c) for about 10 strokes and WIPE THE BLADE with a clean, soft cloth.

6. Sharpen the other side of the blade by Flip the knife: Remember to re-measure and adjust the angle. Then Repeat 4.c) -5 on sides of the blade. (If the angle changes while flip, please refer to more details on FAQ part.)

7. If the edge is about to completed, repeat 4.c) with 5 strokes on each side this time.

8. Change Stones: pass to the next finer stone. (Higher Grit)

9. Repeat steps 4.c)-7 till you’ve done this all with your finest stone.

10. Leather strop use: (NOTE: If it is not included in the offer you’ve chosen, please skip Step 10).
    a). Check and adjust the angle as needed.
    b). Strop the edge from tip to handle or handle to tip but diagonally AWAY from the spine this time.
    c). Strop for 3-5 strokes on each side. Remember to re-measure and adjust your angle whenever you flip the knife.

11. Wipe the knife clean.

12. Maintain and store stones after use: Rinse the stones. Rub the used side with finger or soft brush to loosen the metal filings. Dry the stones with a clean towel and let them air dry the rest of the way before storing them.

13. Disassemble the knife sharpener and store everything back to the carry bag.

Part 3. TIPS ON OPERATING:

1. Wipe off excess water after wet the stones to prevent water fall off from STONE ARM to PIVOT.
2. Place the blade on the BLADE TABLE with the knife handle against the machine and the edge parallel to the front of the GUIDE
3. Place the STONE on the edge of the knife. Pull the knob all the way toward you, and slide the STONE over to the HEEL of the blade.
4. The Stroke : Push the STONE ARM forward and at the same time let it slide to the opposite side of the BLADE TABLE (diagonal motion). PULL the STONE ARM back to the starting position along the same path. Apply just enough pressure to get the stone to cut. Most of the sharpening is done on the push stroke. Don’t pick the STONE up on the pull stroke, just let it slide on the edge. Make smooth, long, slow strokes so you just bump the stops gently. Hold the KNOB loose in your hand so it is free to follow the shape of the knife blade. Let the STONE slide from side to side in a straight line. Do not move in circles, as it will concentrate all the sharpening in only one area of the edge.
5. Go slowly. The STONES cut faster and are easier to control when they are moving slowly. If you go fast, they just slide over the blade and do not cut.
6. Clean the STONE and wipe the knife blade off – (move the STONE ARM to the side, so the water run away from the PIVOT) Put just enough water on the STONE to cover the surface. This will float the metal and grit away from the surface. Then wipe the STONE off with a damp terry cloth/rag.
   

Part 4. TIPS ON JUDGING WHETHER THE SHARPENING IS COMPLETED

1. Bring the edge to a BURR. Continue making equal passes down each side of the blade. When the two sharpening cuts come together at the edge, the metal breaks down and forms a BURR. which can be felt by drawing your thumb across and away from the edge on the opposite side of the last pass.
   

2. Check the edge for a BURR each time you switch sides. The BURR will begin to form in some areas and not others. Concentrate your sharpening in areas with no BURR and pass lightly over the areas that have started to BURR. When you have an even BURR down both sides of the edge, switch to a liner STONE, and make a few light passes on each side of the blade.

3. Remove the BURR. Wipe the stone and knife off. Make 2-3 passes down each side of the blade with NO PRESSURE on the STONE just the weight of the STONE ARM. DO NOT HIT THE STOP. Move the knife along quickly so the STONE only makes one light stroke in each section of the blade. Check to see that the BURR is gone. If you use too much pressure or make too many stone strokes, you will keep making new BURR

Part 5. FAQ

Q1: The stone cannot be clamped tightly

A: Firstly check whether the handle is in place or not (The screw on the handle can be loosened to adjust the handle position)

Secondly, check if you’ve installed the stone according to the above instructions.

Q2: Whetstone Guide Rod Falls Off

A: The guide rod may fall off due to not enough tight, please try to tighten it with a screwdriver

Q3: Angle adjustment pivot slides during sharpening

A: Firstly, please check if the stopper (circled in red) is under the pivot, to get fixed angles, the use of stoppers to prevent the pivot from slipping is required.

If pivot move up and down, you can use two stoppers together (other stopper on whetstone guide rod) to fix the position of the PIVOT

Q4: Angle difference while flipping the blade

A: Check whether if the knife is too deep into the fixture or not, then adjust the position of knife on clamp

TOO DEEP

NORMAL

Q5: Pivot sliding stuck

A: Slightly loosen the screw above the pivot, Apply some lubricating oil or graphite on the guide rod. Insert the guide rod and rub it back and forth to lubricate the pivot.

Part 6. FUNCTION&USAGE OF VARIOUS SHARPENING STONES

DIAMOND STONE

Diamond stone is generally used in cemented carbide knives. With high hardness and large grinding capacity,
and no need to lubricate. Ceramic knives can also be sharpened with diamond stones

120-240#: Coarse grinding, Suitable for Removing chips from a damaged blade
600#: Medium grinding, Smoothing a rough edge into a medium edge
1000-3000#: Fine grinding, Smoothing a medium edge into a sharp edge for Daily use

SILICON CARBIDE WHETSTONE

Made by sintering with silicon carbide abrasive mixed with binder. With high hardness and grinding
performance. Suitable for edge repair. Before use, please soak them into water or lubricate with honing oil

180#(60-70um): Suitable for Removing chips from a damaged blade
400#(35-25um): Roughly sharpening a blunt edge
800#(14-20um): Smoothing a rough edge into a medium edge

Alumina ceramic whetstone

The whetstone is sintered from alumina and binder, Alumina ceramics have high mesh and hardness, which is very suitable for fine grinding of knives. Before use, please soak them into water or lubricate with honing oil

1500-3000#(2.5-7um): Smoothing a medium edge into a sharp edge for Daily use

BORON CARBIDE WHETSTONE

The whetstone is sintered from boron carbide particles and binder, which has good stability and high hardness, and is very suitable for polishing the knife edge. More durable and better protection for knife. Before use, please soak them into water or lubricate with honing oil.

3000#fine (1.5-2um): Preliminary polishing of the blade
6000#(0.5-1.0um): Polished blade to mirror effect

NATURAL WHETSTONE/WATER STONE

Cut from natural emeralds, it has a high grain size ideal for edge polishing. Because it is a natural stone, there may be cracks in some places, which won’t affect the use

10000#(0.5-1.0um): Polished blade to mirror effect

LEATHER STROP

Made of cowhide paste, it is generally used at the end of sharpening knives. It can remove the burr on the blade and make the edge sharper. You can also apply polishing paste to further polish the blade.

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