YAAHKIEH PTO MC100 Series User manual

YAAHKIEH Version 202106
Semi Commercial Wood Chipper
User’s Manual
MC100 series (PTO)
Please read through this owner’s manual carefully before using the product, to ensure the
safety of yourself and others.
*Due to continuing improvements, actual product may differ slightly from the product described
herein.

YAAHKIEH Version 202106
Content
Semi Commercial Wood Chipper ................................................................................................................................... 1
User’s Manual ................................................................................................................................................................ 1
MC100 series (PTO) .......................................................................................................................................................1
1. Specifications ............................................................................................................................................................. 1
2 . General safety rules ................................................................................................................................................... 2
2.1 Labels ............................................................................................................................................................... 2
2.2 Safety for Yourself and Those Around You..................................................................................................... 3
2.3 Safety for Children and Pets .............................................................................................................................5
2.4 General Safety .................................................................................................................................................. 5
2.5 Transportation Safety ....................................................................................................................................... 8
3. Setting up .................................................................................................................................................................... 9
3.1 Controls and Features .......................................................................................................................................9
3.2 Unpacking .........................................................................................................................................................9
3.3 Assembly ........................................................................................................................................................ 11
3.3.1 Attaching hopper assembly ................................................................................................................. 11
3.3.2 Attaching the conveyor assembly ....................................................................................................... 11
3.4 Attaching chipper and tractor ......................................................................................................................... 11
3.4.1 Connecting the chipper and tractor ..................................................................................................... 12
3.4.2 Calculating length of PTO Shaft needed ............................................................................................ 13
3.4.3 Modifying the PTO Shaft-if required ..................................................................................................15
4. Operating .................................................................................................................................................................. 16
4.1 Starting ........................................................................................................................................................... 17
4.2 Processing .......................................................................................................................................................18
4.3 To Free a Jammed Rotor ................................................................................................................................ 19
5. Maintaining the chipper ............................................................................................................................................20
5.1 Regular Maintenance Check List ................................................................................................................... 20
5.2 Grease Fittings ................................................................................................................................................21
5.3 The Drive Belt maintenance ...........................................................................................................................22
5.4 The Blade and Counter Blade maintenance ................................................................................................... 23
5.5 Storage ............................................................................................................................................................ 24
6. Troubleshooting ........................................................................................................................................................25
7. Troubleshooting Table .............................................................................................................................................. 25
8. Spare Parts Diagram ................................................................................................................................................. 26

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Attention!
Please read the manual and warning signs or security points carefully. ignoring to read
and understand the manual content, may cause failure to start machine, damage to the
machine or serious injure to operator. Before using the machine, make sure you have
read the manual and understand all.
1. Specifications
Shipping Dimensions
1100 x 750 x 1100 mm
Shipping Weight
210kg
Serial Number
A Serial Number is used to identify your machine. The number is located on the Serial
Number Label on your machine. For your convenience and ready reference, enter the Serial
Number in the space provided on the front cover of this manual.
Tractor Horsepower
16 HP +
Drive
Tractor PTO
PTO Speed
540 RPM
Chipping Capacity
4"
Rotor Speed
2,200 RPM
Blade
2 blade, 1 anvil blade
Rotor
26kg
Hopper Opening at Top
480mmx340mm
Chipper Weight w/PTO Shaft
180kg

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2 . General safety rules
• Read this safety & operating manual and your tractor owner's manual before you use PTO
chipper. Become familiar with the operation and service recommendations to ensure the best
performance from your machine.
• Thoroughly inspect the area in which you will be working and remove all foreign objects.
Look for rope, wire, etc., and remove these objects before chipping. Inserting these objects
into the chipper hopper could damage the machine and/or cause injury.
• This is a high-powered machine, with moving parts operating with high energy at high
speeds. You must use proper clothing and safety gear when operating this machine to
prevent or minimize the risk of severe injury. This machine can crush, grind, cut, and sever
parts of your body if they enter the inlet or discharge area of your chipper.
2.1 Labels
Your PTO CHIPPER carries prominent labels as reminders for its proper and safe use.
Shown below are copies of all the safety and operation labels that appear on the equipment.
Take a moment to study them and make a note of their location on your chipper as you
assemble and before you operate the unit. Replace damaged or missing safety and operation
labels immediately.

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No entry in the area marked. Stay away from the machine in
radius of 10 meters.
No touch on rotor, be caution that rotor is easily rolling and
very dangerous.
Wear gloves
Wear goggles
Wear muffler
Be careful of sharp blades.
2.2 Safety for Yourself and Those Around You
• This is a high-powered machine, with moving parts operating with high energy at high
speeds. You must operate the machine safely.
• Unsafe operation can create a number of hazards for you, as well as anyone else in the
nearby area.
ALWAYS TAKE THE FOLLOWING PRECAUTIONS WHEN USING THIS MACHINE:
• Always wear protective goggles or safety glasses with side shields while chipping to

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protect your eyes from possible thrown debris.
• Avoid wearing loose clothing or jewelry, which can catch on moving parts or the material
fed into the chipper hopper.
• We recommend wearing gloves while chipping. Be sure your gloves fit properly and do not
have loose cuffs or drawstrings.
• Wear shoes with non-slip treads when using your chipper. If you have safety shoes, we
recommend wearing them. Do not use the machine while barefoot or wearing open sandals.
• Wear long pants while operating PTO chipper.
• Use mufflers or ear plugs rated for at least 20 dba to protect your hearing.
• Never allow people who are unfamiliar with these instructions to use the chipper. Allow
only responsible individuals who are familiar with these rules of safe operation to use your
machine.
• Never place your hands, feet, or any part of your body in the chipper hopper, discharge
opening, or near or under any moving part while the machine is running. Keep area of
discharge clear of people, animals, buildings, glass, or anything else that will obstruct clear
discharge, cause injury, or damage. Wind can also change discharge direction, so be aware.
If it becomes necessary to push material into the chipper hopper, use a small diameter stick,
not your hands.
• Keep bystanders 10 meters away from your work area at all times. Wood chips exit the
chipper at great speeds. To be safe, do not operate the machine near small children or pets,
and never allow children to operate the chipper. Disengage the PTO and stop the tractor
engine when another person or pet approaches.
• Never use the machine without ensuring that all guards and shields are in place, including
the chipper hopper, conveyor and blowback shield.

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• Always operate the machine from the operator zone. Never pass or stand on the discharge
side of the machine when the tractor engine is running or the rotor is turning.
•Never transport the chipper with the PTO engaged and the rotor turning.
• Clear the area of objects such as wire and rope, etc. Inserting these objects into the chipper
hopper could damage the rotor and/or cause injury.
• Never, under any conditions, remove, bend, cut, fit, weld, or otherwise alter standard parts
on PTO chipper. Modifications to your machine could cause personal injuries and property
damage and will void your warranty.
2.3 Safety for Children and Pets
• Tragic accidents can occur if the operator is not alert to the presence of children and pets.
Children are often attracted to the machine and the chipping activity. Never assume that
children will remain where you last saw them.
ALWAYS FOLLOW THESE PRECAUTIONS:
• Keep children and pets at least 100 feet from the working area and under the watchful care
of a responsible adult.
• be alert and turn the machine off if children or pets enter the work area.
• never allow children to operate PTO chipper.
2.4 General Safety
• PTO chipper is a powerful tool, not a plaything.
• Operating this chipper safely is necessary to prevent or minimize the risk of death or

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serious injury. Unsafe operation can create a number of hazards for you.
• Exercise extreme caution at all times. The design of this machine is to chip wood. Do not
use it for any other purpose.
ALWAYS TAKE THE FOLLOWING PRECAUTIONS WHEN OPERATING THIS
CHIPPER:
• This machine is designed to operate at 540 rpm only! Never operate the machine at a faster
speed; doing so can cause serious injury to the operator or bystanders and could cause
damage to the machine that is not covered under warranty.
• The PTO chipper must be operated with the weight of the machine on the ground.
Operating the machine while it is off the ground can result in injury to yourself or others, or
can cause damage to the machine which is not covered under warranty.
• Keep in mind that the operator or user is responsible for accidents or hazards occurring to
other people, their property, and themselves.
• know how to stop the chipper quickly by disengaging the PTO and shutting down the
tractor.
• Operate this machine on a level surface only. Never operate your unit on a slippery, wet,
muddy, or icy surface. Exercise caution to avoid slipping or falling.
• Keep your face and body back from the chipper hopper to avoid accidental bounce back of
any material.
• When feeding material into the chipper hopper, be extremely careful that pieces of metal,
rocks, or other foreign objects are not included. Personal injury or damage to the machine
could result.
• Whenever you leave the operating position or if you have to remove processed material,

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leaves, or debris from the machine, always disengage the PTO, shut down the tractor engine,
remove the key, wait for all moving parts to come to a complete stop, disconnect the PTO
shaft from the tractor, then wait 5 minutes before removing processed material, leaves, or
debris from the machine.
• If the cutting mechanism strikes a foreign object or if your machine should start making an
unusual noise or vibration, immediately disengage the PTO, shut down the tractor engine,
remove the key, wait for all moving parts to come to a complete stop, disconnect the PTO
shaft from the tractor, then wait 5 minutes before inspecting for clogging or damage.
Vibration is generally a Warning of trouble. Clean and repair and/or replace damaged parts.
• Never tamper with safety devices. Check their proper operation regularly.
• Stay alert for hidden hazards or traffic. Never carry passengers on your machine.
• Never overload or attempt to chip material beyond the manufacturer’s recommendation;
see chapter 4. personal injury or damage to the machine could result.
• While using PTO chipper, don't hurry or take things for granted. When in doubt about the
equipment or your surroundings, stop the machine and take the time to look things over.
• Never operate the machine when under the influence of alcohol, drugs, or medication.
• Use the machine only in daylight.
• Keep all nuts and bolts tight and keep the equipment in good operating condition.
• Your PTO chipper is driven by a PTO shaft that transfers power from your tractor. A PTO
shaft is extremely dangerous and can cause serious injury or death. Read and understand all
of the safety and operating instructions manual that came with your PTO shaft.
No list of warnings and cautions can be all-inclusive. If situations occur that are not covered
by this manual, the operator must apply common sense and operate this chipper in a safe

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manner.
2.5 Transportation Safety
• Before transporting, be certain the PTO chipper is correctly and Securely attached to your
tractor and the safety chains of the PTO are in place.
• Make sure the PTO chipper is raised high enough to clear all obstacles during
transportation.
• Never transport the machine for long distances.
• Never allow anyone to ride on the PTO chipper.
• Never transport anything on the machine.
• Never transport the PTO chipper with the PTO engaged.
• Obey local, state, and federal regulations when transporting the machine on public roads
and highways.
• Allow for added length in driving situations, e.g., when turning, parking, and Crossing
intersections.
• Adjust your transportation speed for terrain and conditions.
• Use caution when backing or turning. Be aware of the large turning radius Required with
PTO chipper attached to your tractor.
Additional Information and Potential Changes
We reserves the right to discontinue, change, and improve its products at any time without
notice or obligation to the purchaser. The descriptions and specifications contained in this
manual were in effect at printing. Equipment described within this manual may be optional.

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Some illustrations may not be applicable to your machine.
3. Setting up
This chapter outlines unpacking and a few simple steps you will need to follow to set up
your new machine before you use it. It may be helpful to familiarize yourself with the
controls and features of your PTO CHIPPER as shown in before beginning these
procedures.
3.1 Controls and Features
3.2 Unpacking
• Wear gloves when removing the crate top to protect your hands from debris.
• Stabilize the wood crate on clean flat terrain before attempting to unpack and assemble the
chipper.

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Unpacking the PTO CHIPPER is a two-person job.
We recommend you have an extra set of hands
available before you begin because the CHIPPER
weighs 145KG.
Step A
1. Use the electric driller with socket 10mm to take
off the fix screw (picture right)
2. Lift up crate top and put it aside by two people
3. Remove the carton board
4. Take off the stretching plastic
5. Cut plastic banding with wire cutter
Step B
1. Put carton board under banding aside on a flat area
2. Remove the conveyor
3. Put the hopper aside with carton board cushioned
4. With the help of another person, lift and slide the machine off the pallet. it is a lot of
easier if you have forklift.
All the package materials are recyclable, please do not throw them away as waste.

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3.3 Assembly
3.3.1 Attaching hopper assembly
1. First remove the two bolts pre-mounted with spanner.
2. With the help of another people, lift up the hopper with
bottom panel upside.
3. Connect the hitch pin and holder.
4. Put the hopper down and bolt it tightly.
3.3.2 Attaching the conveyor assembly
1. First remove the two bolts pre-mounted with wrench.
2. Connect the hitch pin and hitch holder.
3. Bolt the conveyor tightly.
All the package materials are recyclable, please do not throw them away as waste.
3.4 Attaching chipper and tractor
• Before performing the following procedure, be sure your tractor engine is off, brake is set,
and the key removed for safety.

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3.4.1 Connecting the chipper and tractor
The PTO Drive shaft provided with your new machine is sized to fit a standard category 1
PTO (1-3/8" DIA. x 6" Spline).The PTO shaft on the tractor that is to use this machine must
rotate clockwise when viewing the PTO from the rear of the tractor. If the PTO rotates
counterclockwise, you must have your tractor modified by installing a gearbox to reverse the
direction of rotation. The length of the PTO Drive shaft that is included with your new
machine may need to be modified.
See the procedure for checking the PTO Shaft length needed and modification instructions in
this chapter.
1. Back the Tractor to the Chipper and position the Lower Draft Arms near the Chipper
Hookup.
2. Slide the Lower Draft Arms onto the Chipper Hookup Pins and secure with safety Pins.
3. Position the Upper Draft Arm inside the Mounting Bracket and align with the Mounting
Bracket Holes
4. Insert the safety Pin to secure the Upper Draft Arm to the Chipper.

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3.4.2 Calculating length of PTO Shaft needed
The PTO Shaft provided with your Chipper is 27" overall compressed length and will work
for most applications without modifications. Before you install the PTO Shaft it is good
practice to run through the following dimension checks to calculate optimum PTO Shaft
length to determine if modifications are needed.
Without the PTO Shaft installed, use the table below to record the dimensions as outlined in
the following steps.
SHAFT TO SHAFT MEASUREMENTS
ON GROUND
_____________Inches
SHAFTS LEVEL
_____________Inches
FULLY RAISED
_____________Inches
1. Lower the Chipper all the way onto the ground in the operating position. Measure from
the end of the Tractor PTO Shaft to the end of the Chipper PTO Shaft and record this
dimension in the “ON GROUND” row of the table above.

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2. Raise the Chipper up until the Tractor PTO Shaft and Chipper PTO Shaft are parallel with
each other. Measure from the end of the Tractor PTO Shaft to the end of the Chipper PTO
Shaft and record this dimension in the “SHAFTS LEVEL” row of the table above.
3. Raise the Chipper up as far as it will go. Measure from the end of the Tractor PTO Shaft
to the end of the Chipper PTO Shaft and record this dimension in the “FULLY RAISED”
row of the table above.
If your longest measurement exceeds 32" you will require a longer PTO Shaft. Do not
proceed with installation until you have a longer PTO Shaft.
4. Take the shortest recorded measurement you wrote in the table and add 2".
5. Take that number and subtract it from 27" (overall compressed length of the supplied PTO
Shaft).
6. This final number is the length that you will need to cut off of the PTO Shaft for it to fit
properly to your Tractor.
EXAMPLE:
Let’s assume the shortest center-to-center measurement in the table is 22".
• 22 + 2 = 24 (step 4 above)
• 27 – 24 = 3 (step 5 above)
• You would be required to cut 3" off both halves of the PTO Shaft and 3" off of the Guard.
If you end up with 0" or a negative number, then no changes are needed until you reach a
maximum long measurement of 32" as indicated on previous page.

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3.4.3 Modifying the PTO Shaft-if required
The PTO Shaft included with your new Chipper may be too long for your tractor. To shorten
the Driveshaft, proceed as follows:
1. Separate the PTO Shaft Halves by pulling them apart.
2. Separate the Guards from the PTO Shaft Halves by inserting a
flat tip screwdriver into the Bearing Tab Slots as you pull down
on the Safety Guard to release the Safety Guard from the Shaft
(see the right ref. picture).
3. Measure and cut the ends of both Guards the required amount
(see the right ref. picture).
NOTE: If you put the Guards in a vise to hold them, be careful not to clamp it too tight
because it could crack the plastic.
4. Measure and cut each Shaft Tubes to the required length
using the hacksaw (see the right ref. picture).
5. File or sand any burrs from the Shaft ends (see the right ref.
picture).
6. Grease both Shaft Tubes and under the Bearing Rings of each
Shaft (see the right ref. picture).
7. Insert the Shaft Halves into the Guards making sure that the
Bearing Ring Slot lines up with the Tab on the inside of the
Guards for proper installation (see the right ref. picture).
8. Slide the two PTO Shaft Halves together.

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When inserting one half of the PTO Shaft to the other you must line up the splines correctly
(two pointed splines and one flat spline).
3.4.4 Attaching the PTO Shaft to the Tractor and Chipper
1. Push in the PTO Shaft Spring Pin and slide the PTO Shaft
onto the Tractor Spline (see the right ref. picture).
2. Release the Spring Pin and continue sliding the PTO Shaft
on until the Spring Pin Pops out and locks into the detent in
the Tractor PTO Spline.
3. Secure the PTO Shaft Safety Chains to stationary parts of
the Chipper Frame and Tractor to stop the Guard from
turning (see the right ref. picture).
4. Operating
This chapter covers the procedures for starting and stopping your new PTO CHIPPER and
discusses basic operation features.
• This machine is designed to operate at 540 rpm only! Never operate the machine at a
faster speed; doing so can cause serious injury to the operator or bystanders and could
cause damage to the machine that is not covered under warranty.
• The PTO chipper must be operated with the weight of the machine on the ground.

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Operating the machine while it is off the ground can result in injury to yourself or others,
and can cause damage to the machine which is not covered under warranty.
• Contact with internal rotating parts will cause serious personal injury. Never put hands,
face, feet, or clothing into chipper hopper or discharge opening or near the discharge area
or PTO shaft at any time.
• Never operate the machine without the hopper or conveyor or PTO shaft properly
installed.
4.1 Starting
1. Ensure that the Chipper is lowered to the ground and all Guards are in place and properly
secured before using.
2. Remove any debris buildup from the machine before every use of the Chipper.
3. Set Tractor throttle at IDLE before engaging PTO with Chipper attached.
4. Increase Tractor throttle to the RUN RPM’s required to obtain 540 PTO speed before
chipping.
5. Reduce Tractor throttle to IDLE before disengaging PTO.
Operation Notes
• Check the Drive Belt, if necessary, after an initial break-in period of one hour.
• Visually check the Chipper Blade for damage before each use of the machine.
• Always operate the Tractor PTO at 540 RPM when chipping.
• Keep proper balance and footing while operating the PTO CHIPPER.
• ALWAYS disengage the PTO when leaving the Operating Zones or when moving the
machine.

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• Never move the Chipper while the PTO is turning.
4.2 Processing
1. The Chipper is designed to accept wood only. The Chipper Blade mounted on a revolving
rotor turns branches fed into the Chipper Hopper into “chips”. The Chipper can chip
branches ranging in size up to 4" in diameter.
2. Your PTO CHIPPER can process dry or green wood up to 4" in diameter.
3. The Chipper will self-feed the wood once it contacts the blade edge so forcing the
branches into the Hopper is not necessary if the blade is sharp.
4. Green wood will process quicker and easier than dry wood.
5. Softwood processes easier than hardwood.
6. Your operator experience will teach you how different types of wood will chip and how
fast you can process them.
7. Use caution with small diameter green saplings and branches less than 2" in diameter.
Chip these grouped or bundled together to provide support for each other. If the material is
2" or larger, feed only one at a time into the Chipper Hopper.
8. Make sure the PTO CHIPPER finishes processing material in the Hopper before
disengaging the PTO and shutting the Tractor engine off.
9. Do not force material into the Chipper. If the machine does not chip well, the Chipper
Blade may need sharpening or replacement, or the gap between the Blade and the Counter
blade needs adjusting.
•Use common sense when using the machine. Learn to recognize the change in sounds when