WoodMaxx WM Series User manual

Introduction 1
Set-up Instructions 1
Assembly Instructions 2
Drive-Line Safety Tips 11
Drive-Line Safety Checklist 11
Drive-Line Specifications 11
Hazard Reduction 12
Guarding 12
Warning and Instructions 13
Safety Instructions 14
Machine Checklist 15
Machine Operation 15
Lubrication Frequencies and Locations 17
Preventative Maintenance 17
Troubleshooting 18
Drive-Line Fitting Adjustments 19
Blade Changing / Adjusting Instructions 21
Flywheel Blade Sharpening Instructions 23
Clearing an Object From the Flywheel Housing 24
Replace / Adjust Infeed Drive Axle Power Belt 25
Drive Belt Changing / Adjusting 26
Replace / Maintain Infeed Drive Axle 27
Warranty 28
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TABLE OF CONTENTS

INTRODUCTION
CONGRATULATIONS! You have just purchased the WoodMaxx WM-Series Wood
Chipper, the strongest, safest and the most compact PTO wood chipper available.
We have compiled this owner’s manual to help you understand and appreciate
your chipper. By taking a few minutes to read this manual and understand the
maintenance instructions, it will give you better performance and extend the life
of your chipper. Read the manual before operating the chipper.
SET-UP INSTRUCTIONS
Your chipper does need to be set up prior to installation. It arrives in a steel
crate that can be dismantled in minutes. See Assembly Instructions
The infeed bin and discharge chute are shipped with the unit and are
located in the bottom of the steel crate.
Turn the flywheel by hand before attaching to tractor and applying power to
ensure that nothing is in the chipper head. If the chipper deflector or any of
the guards have been removed for shipping, be sure to replace them properly
before use.
The PTO (Drive-Line) is also shipped with the unit and is located in the bottom
of the steel crate.
When mounting, keep the chipper as close to the tractor as possible.
Make sure that the PTO shaft will not bottom out in the shortest position.
While in use, keep the PTO shaft straight. No more than 15 degrees from level
is acceptable.
Do not operate the chipper without the chip deflector properly in place.
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ASSEMBLY INSTRUCTIONS
Tools you will need:
 13mm Wrench (same as 1/2”)
 16mm Wrench (same as 5/8”)
 Torque Wrench
 18mm Wrench
 19mm Socket (same as 3/4”)
 17mm Socket
WM-8M
Inspect crate for any obvious damages from shipping. [fig. 1]
Remove all chipper parts from crate. Remove packaging and inspect all
pieces. [fig. 2]
Remove top from steel crate. [fig. 3]
Remove drive belt cover and set aside.
Open hardware bag. [fig 4]
Locate the lift point on the top of the machine. This is the balance point, and
the only point you should lift chipper from. [fig 5]
Using a chain or strap rated strong enough to lift the weight of the chipper,
lift the chipper out of the steel crate base. If you do not have the ability to lift
the chipper from the crate, you can attach the 3pt hitch and lift the chipper
out of the crate.
Remove tension springs from top feed roller.
Raise and support feed roller. A 2x4 works well for this step. [fig. 6]
Assembly Time 2 hours
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Torque bed blade (Anvil) bolts to specifications (40ft/lb). Do this prior to
bolting on infeed bin. Hold the bolt in place with a 6mm allen wrench and
torque the nylon lock nut (17mm socket). [fig. 7]
Remove shield that covers infeed roller drive axle.
Remove access panels from front and back of flywheel housing to expose the
flywheel blades.
Torque all flywheel blade bolts to specifications (40 ft/lb). Hold bolts in place
with a 6mm allen wrench and torque the nylon lock nuts (17mm socket).
(Note: Many times it is NOT necessary to hold the bolt with an allen wrench.
Friction will usually hold it in place.) [fig. 8]
Assemble infeed bin by first bolting side panels to chipper, then the bottom,
and lastly the top. Do NOT tighten bolts until all four panels are installed,
making sure bottom panel of in feed bin is slightly higher than that of the
chipper so branches can slide over it easily without hang up. (Note: Side
panels should be mounted on the outside of the top and bottom panels.)
Attach the infeed roller disengage bar using the 2 long bolts set aside earlier.
Attach bolts in this manner:
 Thread nut onto bolt
 Tighten nut and bolt
 Slide washer onto bolt
 Attach disengage bar then thread on nylon lock nut, but DO NOT
TIGHTEN - this pivot point must be loose for disengage bar to work
properly. [fig. 9 & 10]
Lubricate the disengage bar cable. Do this by spraying a high quality silicone
lubricant into both ends of the cable.
ASSEMBLY INSTRUCTIONS
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ASSEMBLY INSTRUCTIONS
Attach both ends of the cable and adjust so horizontal portion of disengage
bar is just below the bottom of the in feed bin. [fig. 11]
Using small zip ties, attach rubber boot to both ends of cable. This will help to
prevent moisture/foreign objects from getting into the cable. [fig. 12] [fig. 13]
Attach support leg. Note the support leg should only be in the down position
while the chipper is disconnected from tractor. While chipper is connected to
tractor, keep the support leg up to prevent it from getting hooked on objects
when moving.
Attach feed roller assist lever. [fig. 14]
Attach swivel discharge chute. [fig. 15]
Locate all zerk fittings on machine (7 – bearings, 2 – PTO drive shaft). Pump
several shots of high quality grease into fittings. (Note: Check to ensure the
zerk fitting are screwed in tight.)
Check and adjust so that both pulleys on jack shaft and main shaft are parallel.
(+/- 1/8” is acceptable) If not, adjust at this time by loosening the 4 bolts that
support the jack shaft assembly and by tightening or loosening the bolts on
the bottom of the jack shaft assembly until pulleys are parallel and belts are
tight. Once parallel, tighten the 4 bolts that support the jack shaft assembly.
Take your time on this step. Proper setup will ensure many years of trouble
free operation . [fig. 16] [fig. 17] *This step has been completed for your
machine prior to leaving the WoodMaxx Warehouse.
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Remove cover from infeed roller drive axle.
Fill gear box with 90W gear oil until level with red dot through site window.
Approximately 4-6oz. Sometimes oil will not show in window until machine has
been used for a while. [fig. 18] *This step has been completed for your
machine prior to leaving the WoodMaxx Warehouse.
Check and adjust tension on belt that drives gear box. It should be tight so that
when belt is squeezed by hand – belt does not touch itself. [fig. 19]
Make adjustments by loosening 4 bolts that hold gear box assembly (16mm).
Turn adjustment screws until belt is tight. [fig. 20] [fig. 21]
Tighten all 4 bolts on gear box assembly (16mm).
Lubricate infeed roller drive shaft and clutch assembly with a high quality spray
Lithium grease. Be careful NOT to spray grease on pulleys and belt.
Connect chipper to tractor using 3 pt hitch.
Reattach drive belt cover.
Attach PTO shaft from tractor to chipper. If shaft is too short, adjust 3 pt hitch
arms on chipper. If shaft is too long, refer to Drive-Line Fitting Adjustments in
the operation manual. It is very important to attach the PTO shaft while both
spline from chipper and the spline from tractor are horizontal and in line with
each other. [fig. 23] [fig. 24] (Note: if you attach the PTO shaft while spline
from chipper is lower than the tractor spline, you could damage the chipper.
When you raise the chipper for transport, the shaft will compress and bind.)
ASSEMBLY INSTRUCTIONS
IMPORTANT
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ASSEMBLY INSTRUCTIONS
The recommended position of the chipper during operation is horizontal. A
maximum of 15 degrees of offset from the horizontal position between the
two shaft ends is allowable.
Read ALL operational manual instructions before using chipper.
fig. 1
fig. 2
Swivel discharge chute base Feed roller disengage bar Feed roller assist lever
Feed bin bottom panel
(mount interior of side panels)
Feed bin top panel
(mount interior of side panels)
Discharge chute Feed bin side panels
PTO shaft Support leg Hardware bag contents
RIGHT SIDE PANEL
LEFT SIDE PANEL
(Notice holes for support leg)
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ASSEMBLY INSTRUCTIONS
fig. 7
fig. 3
fig. 5
fig. 8
fig. 6
fig. 4
Long bolts for WM-8M ONLY
4 bolts to attach discharge chute
Used to attach feed bin side panels
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Pa
ASSEMBLY INSTRUCTIONS
fig. 9
fig. 12
fig. 13 fig. 14
fig. 11
fig. 10
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ASSEMBLY INSTRUCTIONS
fig. 15
fig. 17 fig. 18
fig. 16
(+/- 1/8” acceptable)
fig. 19 fig. 20
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ASSEMBLY INSTRUCTIONS
fig. 23 fig. 24
Must be horizontal This is the proper way to measure MSED.
fig. 21 Complete
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DRIVE-LINE SAFETY TIPS
Agriculture and forestry are recognized as one of the most hazardous of
occupations. Today’s farmer spends long hours in close proximity to increasingly
complex and powerful machinery.
To avoid accidents, everyone from the component supplier and the company
who manufacturers and assembles the machinery, to the dealers and ultimately
the actual user, must keep safety in mind. The checklist below relates to the
drive line of agricultural implements, general safety literature, and the standards
published by the American Society of Agricultural Engineers.
Drive-Line Specifications – The first step towards safe applications is to specify
and test the drive-line so that it operates properly under expected field
conditions.
1. Specify and test the proper size joints and telescoping members based
upon the power required by the implement, speed of rotation, joints
angles, shock loads, and expected life.
2. Test the hitch geometry to prevent the drive line from:
 Extending beyond the recommended maximum length.
 Bottoming out.
 Reaching a position that allows universal joints to lock.
 Exceeding the maximum allowable angle for constant velocity of
the universal joints.
Information concerning these parameters may be found in all
drive-line manufacturer’s catalogs.
3. Specify and test telescoping members to allow the lowest possible thrust
loads, considering the expected working conditions.
4. Specify and test torque limiters to control excessive shock loads.
5. Where necessary, specify and test overrunning clutches to prevent
inertial loads from overpowering the tractor.
DRIVE-LINE SAFETY CHECKLIST
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DRIVE-LINE SAFETY CHECKLIST
Hazard Reduction – The second step in specifying a safe drive-line application is
to strive to eliminate as many hazards as possible
1. On drive-line with torque limiting or overrunning devices, specify that
the device be positioned to the end of the drive-line by the implement.
2. For implement connections which require bolts or set screws, select
and/or supply hardware which minimizes protrusions.
3. For tractors PTO shaft connections, specify a safety type yoke (twist or
slide collar) to minimize protrusions.
4. Provide a proper clearance zone for the operation of the drive-line, to
avoid damaging the shielding components.
Some common areas of interference are:
 Three point linkage.
 Extended or eye loop hitch pins.
 Hydraulic hoses.
Guarding – For hazards which cannot be eliminated effectively, guarding must
be provided whenever feasible.
The PTO master shield, integral drive-line shield, and implement input
connection shield should provide an interactive guarding system.
1. Provide instructions by labels or manuals. The implement should be
used only with the tractor’s PTO master shield in place.
2. Specify and test an integral drive-line shield with end cones which
overlap, but not interfere with the PTO master shield or implement
input connection shield.
3. Provide an implement input connection shield to interact with the
integral drive-line shield to provide guarding of the shaft coupling
and any torque limiting devices installed on the drive-line.
4. Check that all routine maintenance of the drive-line can be done
without removal of the shields.
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DRIVE-LINE SAFETY CHECKLIST
Warnings and Instructions – Provide warnings and instructions for hazards
associated with the machine. Provide instructions for proper maintenance and
repair.
1. Provide labels on the unit to advise the user of proper hitch dimensions
and maximum safe operating speed.
2. Check that proper danger labels are supplied with the drive-line.
3. Provide easy-to-understand instructions for proper drive-line operation,
maintenance, and repair in the operator’s manual.
4. Advise against the use of PTO adapters which may defeat the purpose
of the tractor’s master shield and adversely affect the performance of
the drive-line.
5. Advise the user of locations of genuine original equipment spare parts.
Further information about drive-line specifications and safety may be
obtained from your drive-line supplier and the following ASME standards
and engineering practices:
S203 – Rear power take-off for agricultural tractors
S205 – Power take-off definitions and terminology for agricultural tractor
S207 – Operating requirements for tractors and power take-off driven
equipment implements
S318 – Safety for agricultural equipment
S331 – Implement power take-off drive-line specifications
S333 – Agricultural tractor auxiliary power take-off drives
S350 – Safety alert symbol for agricultural equipment
S441 – Safety signs
S493 – Guarding for agricultural equipment
EP363 – Technical publications for agricultural equipment
Other standards may apply for particular types of implements. All drive-line
manufacturers strive to produce a safe product. Drive-lines, like most other
components must be used properly, including the use of proper tractor master
shields and implement input connection shields. Please contact us if you have
any questions about your drive-line applications.
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Do not attempt to operate the chipper until you have read and understand
the owner’s manual.
If you need another manual you can download one at www.woodmaxx.com
Keep the decals in place and in good repair. We will furnish new decals upon
request.
It is not recommended to operate the chipper in temperatures below freezing.
Always keep the guards and chip deflector installed properly while operating
the chipper.
Never leave the chipper running unattended.
Do not attempt alterations, repairs, or adjustments while the flywheel is
turning. Always disconnect the PTO, stop the tractor’s motor, and put the
keys in your pocket prior to attempting any alterations, repairs or adjust-
ments.
Keep hands, feet, and other extremities out of and away from the hopper
(in feed bin).
Point the discharge chute away from doorways, sidewalks, or any other area
where your view is obstructed. The chute should be pointed downwind when
possible. This will keep the chips from blowing back in the operator’s direc-
tion.
Keep everyone, especially children, away from the area of operation.
No loose clothing should be worn around the chipper. Personal injury can
occur if someone or something turns the flywheel over when the blades are
being checked or the cutter bar is being adjusted. The flywheel has enough
residual energy to easily remove fingers.
Page 15
SAFETY INSTRUCTIONS
WEAR PROTECTIVE GEAR!
EYES – wrap around safety glasses
EARS – ear plugs
HANDS – leather gloves
FEET – steel toed boots
LEGS – heavy pants
ARMS – long sleeved shirt
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MACHINE CHECKLIST
CAUTION: Turn the flywheel by hand before applying power to ensure that the
head is clear, all the bolts are clear, and the knives clear the case and the cutter
bar.
Make sure that:
1. The feed roll drive-shaft and pivots are properly lubricated.
2. The feed roll clutch is properly lubricated and the clutch releases when
the handle is pushed toward the chute.
3. The PTO shaft does not come apart or bottom out during the normal lift-
ing range.
Check the chip pile to see if the blades need to be serviced. Long slivers in the
chip pile are one of the best indicators of dull blades.
The chipper is a flywheel-and-knife type of chipper, not a shredder. The blades
actually chip the limbs they are fed into the head. The blades must be sharp to
operate properly. Dirt, rocks, nails, or other foreign material will shorten blade
life.
Before operating the chipper, review the machine checklist. After turning
flywheel by hand and making sure there are no obstructions in the head, start he
tractor and raise the chipper until the PTO shaft is no more than 15 degrees from
level. The chipper must be resting on solid ground prior to operation. DO NOT
operate while raised by 3 pt hitch.
Start the chipper slowly with the PTO engaged. Gradually increase engine RPM
until the tractor PTO speed in 540 RPM. The chipper is designed to run at 540
RPM. Lower RPM can damage the chipper if material jams and stops the
flywheel. The material will feed into the head more easily if you start the pieces
with the large end first.
The feed roll will fold branches as they are pulled into the hopper. Occasionally,
a limb fork may have to be cut to feed properly. If the material stops feeding,
sometimes a little push on the long end of the limb will help.
If the material stops the feed roller, release the feed roller disengage clutch by
pushing it toward the chute. Hold the clutch in the disengage mode, and pull
the material out of the hopper. Release the feed roller clutch and the feed roller
will turn again.
MACHINE OPERATION
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MACHINE OPERATION
Remember to chip only clean material, or blade life will be shortened.
Do not move the chipper while the flywheel is turning.
Block the tractor wheels and set the parking brake while running the chipper.
Watch the discharge chute while operating the unit and if the chips stop
flowing, stop feeding material into the unit by moving the feed roll clutch
handle toward the chute and pulling the material from the hopper.
Most of the time this will be enough to clear the chips out of the unit. If the unit
slows down noticeably, first shut off the PTO power, then the tractor. Unplug
the head by turning it backwards by hand with the discharge chute and the top
section of the flywheel housing wrap off.
Remove the chips from the top of the head. If this fails, remove the clean-out
door, located in the lower part of the front side-plate of the chipper below the
main shaft, and then work the chips out of the case.
Replace the clean-out door after all the chips are removed, be sure to use both
the lock washers and flat washers.
Do not operate the chipper without the chip deflector in place.
Before stopping the chipper, be sure that all of the material is out of the head
and out of the in feed roller.
All of the material in the chute must be gone or the unit could jam on a small
piece of material. This can usually be cleared by turning the unit backwards by
hand.
Dull blades cause many problems such as: seeming lack of power, plugging of
the discharge chute, rough cutting with more vibration than usual, feed roll
shaft broken, main bearing house broken, main bearing working loose and the
flywheel or blades hitting the case or bed knife, feed roller kicking out of gear,
and not feeding.
When sharpening the blades, be careful to keep angle A at a 30-32° angle.
Blades cannot be rounded, or the blades will not pull the material into the head.
(See Flywheel Blade Sharpening Instructions)
The best way to tell if the blades need sharpening is to watch the chips coming
out of the chip discharge. If they are long and straight, the blades are in need of
service. Sometimes the blades feel sharp to the fingers, but may be worn or
rounded. They will need to be sharpened.
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LUBRICATION FREQUENCIES & LOCATIONS
Bearings - grease all bearing zerks every 4-8 hours of operation.
PTO Shaft – grease the two grease zerks on the universals once daily with
multi-purpose grease.
Infeed Roller Drive Axle – lubricate with spray lithium grease every four to eight
hours of operation. Occasionally remove and thoroughly clean this
assembly
Feed Roll Clutch – while feed roll shaft is off, lubricate the feed roll clutch inside
and out with multi-purpose grease.
Gear Box – add oil (90w) as necessary and change after 40 hours of use.
Check all bolts, set-screws and fasteners after running four hours, and once per
day thereafter.
Check for loose belts and broken pulleys, loose springs, dry slides, and proper
lubrication of both feed roller drive-axle and feed roller clutch.
The main drive belts on the chipper need to be tight.
The belt of the main drive on the PTO chipper should be checked every eight
hours of operation.
All decals and safety instructions should be kept clean and legible. It is the
operator’s responsibility to replace the decals as needed. They will be mailed to
you at no charge.
PREVENTATIVE MAINTENANCE
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TROUBLESHOOTING
PROBLEM: Head slows but tractor does not
Possible Causes Solution
Main drive belts are slipping Tighten
Blades dull Sharpen
PROBLEM: Feed roll clutch kicking in and out of gear excessively
Possible Causes Solution
Blades dull Sharpen
Material jammed in chute Release feed roll clutch and remove
material by pulling out of chute,
trim forks, and feed into chute.
PROBLEM: Not chipping clean or chip deflector plugging
Possible Causes Solution
Blades dull Sharpen
Cutter bar rounded Sharpen/reverse
Chipper head turning too slowly Check PTO speed at 540 RPM
PROBLEM: Unit won’t feed
Possible Causes Solution
Feed roll slides dirty or dry Clean and lubricate
Fork in material too wide Remove and trim
Feed roll gear box belt loose Tighten
Feed roll tension springs stretched Replace
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DRIVE-LINE FITTING ADJUSTMENTS
This data is for drive-line fitting adjustment.
Prior to startup, the PTO that is supplied with your chipper must be properly
sized to insure proper operation. If this is not done, damage to the chipper, PTO,
and tractor PTO drive-line will occur. These calculations are based on the
following assumptions:
The PTO drive-line used is supplied with your chipper. With a size two PTO
shaft spline for a type one spline on the tractor PTO.
The drive-line has an active length range of 20-3/4” to 25-1/4” and that
2-1/2“ of contact area on the PTO spline and 2-1/2” of contact area on the
chipper spline shaft are utilized.
The two shaft ends are horizontal with one another
The following steps should be taken to insure the proper fitting of the PTO drive-
line (provided with your chipper) with your tractor PTO drive.
Attach the chipper to your tractor’s three point connections.
Raise the chipper to a position where its drive-shaft is level with the tractor
PTO drive-shaft. The horizontal position is recommended for operation of
the chipper. A maximum of 15 degrees of offset from the horizontal posi-
tion between the two shaft ends is allowable for proper operation of the
unit by the PTO drive-line manufacturer. However, drive-line calculations
are based on a level horizontal position .
With the two drive shafts level with one another, measure the distance
between the ends of the two shafts. (The chipper and the tractor PTO shaft
ends). This distance between the two shaft ends is the measured shaft end
distance, or “MSED”. [fig. 23,24] The PTO drive-line is capable of handling a
MSED between 20” to 25-1/2”, allowing for at least 1/3 of shaft overlap as
recommended by the drive-line manufacturer.
If the MSED is longer than 25-1/2”, a longer drive-line is needed and should
be ordered.
If the MSED is shorter than 20”, a shorter drive-line is needed and should be
ordered. MSED
Between 23-1/4” x 25-1/4” No adjustment needed
22” Cut 1” from each shaft
21” Cut 2” from each shaft
20” Cut 3” from each shaft
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