INTRODUCTION WoodMaxx CONGRATULATIONS! You have just purchased the 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.
ASSEMBLY INSTRUCTIONS WM-8M Tools you will need: 13mm Wrench 18mm Wrench (same as 1/2”) 16mm Wrench 19mm Socket (same as 3/4”) (same as 5/8”) Torque Wrench 17mm Socket Assembly Time 2 hours Inspect crate for any obvious damages from shipping. [fig. 1] Remove all chipper parts from crate.
Page 4
ASSEMBLY INSTRUCTIONS 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.
Page 5
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 *This step has been completed for your . [fig. 16] [fig. 17] machine prior to leaving the WoodMaxx Warehouse. Page 5...
Page 6
*This step has been completed for your been used for a while. [fig. 18] 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).
Page 7
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 Feed roller disengage bar Swivel discharge chute base Feed roller assist lever...
Page 8
ASSEMBLY INSTRUCTIONS Long bolts for WM-8M ONLY fig. 3 4 bolts to attach discharge chute fig. 4 fig. 5 fig. 6 fig. 7 fig. 8 Page 8...
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.
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.
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.
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.
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.
Page 17
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.
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.
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.
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.
Page 21
DRIVE-LINE FITTING ADJUSTMENTS Most drive-lines can be adjusted to fit by cutting off equal amounts of the ends of the shaft and the guard tube of the PTO drive-line. In no case can more than 3” of shaft and guard tube be removed, or the contact area is not sufficient for proper and safe operation of the drive-shaft.
BLADE CHANGING / ADJUSTING INSTRUCTIONS WM-8M Tools you will need: ◊ Torque Wrench ◊ 13mm Wrench/Socket ◊ 17mm Socket ◊ 6mm Allen Wrench STEPS: Detach PTO shaft from chipper. [fig. 1] fig. 1 Remove Shield that covers infeed drive axle. Remove shield that covers drive belts.
Page 23
BLADE CHANGING / ADJUSTING INSTRUCTIONS REPLACE BED BLADE (ANVIL) Tools you will need: ◊ Torque Wrench ◊ 6mm Allen Wrench ◊ 17 mm Socket STEPS: Detach PTO shaft from chipper. [fig. 1] Remove both tension springs from infeed roller assembly. Raise and support infeed roller, a short piece of 2x4 works well for this.
FLYWHEEL BLADE SHARPENING INSTRUCTIONS SHARPEN FLYWHEEL BLADES STEPS: To properly sharpen the blades, sharpen an angle A and keep the angle about 30-32°, the same as a new set. [fig. 1] Area B cannot be rounded, or the blades will not pull the material into the head.
CLEARING AN OBJECT FROM THE FLYWHEEL HOUSING Tools you will need: ◊13mm Wrench STEPS: Detach PTO shaft from chipper. [fig. 1] Locate access door on bottom of flywheel housing. [fig. 2] Using a 13mm wrench, remove the two bolts that secure the access cover.
REPLACE / ADJUST INFEED DRIVE AXLE POWER BELT Tools you will need: 16mm Wrench (same as 5/8”) 18mm Wrench STEPS: Detach PTO shaft from chipper. [fig. 1] Remove roller disengage bar cable. [fig. 2] fig. 1 Remove shield that covers in feed drive axle. Using a 16mm wrench, loosen all 4 nuts that hold worm gear box to frame - but DO NOT remove.
REPLACE / MAINTAIN INFEED DRIVE AXLE Tools you will need: ◊12mm wrench STEPS: Detach PTO shaft from chipper. [fig. 1] Remove infeed roller disengage bar cable. [fig. 2] Remove shield that covers axle. Remove drive axle. (12mm) [fig. 3] Clean drive axle with solvent and a brush. Apply liberal amounts of grease to the clutch assembly.
Need help?
Do you have a question about the WM Series and is the answer not in the manual?
Questions and answers