PowerTek 727 Handbuch

Model 727/731 POWERTEK

Model 727/731 Hydraulic Feed Chipper

Operation & Maintenance Manual

PowerTek Inc.

P.O. Box 3

Lebanon, IN 46052

1-877-769-7835

5-09-12

GENERAL OPERATING RULES POWERTEK

PREPARATION RULE

1. Always inspect the chipper before and after each

use to ensure safety and optimum performance.

2. Inspect the tires, safety chains, and towing hitch for

any malfunctions. Fix or replace any parts if found

to be defective.

3. Check that the running lights and turn signals are

working properly.

4. Inspect that all decals are legible and in place.

Replace any defective decals.

5. Inspect the entire chipper for loose nuts and bolts.

Properly tighten if any are found.

6. Check all chamber bolts, blade bolts and anvil bolts.

Torque to the specified torque as mentioned later in

the manual.

7. Remove and store flywheel safety pin before starting

the unit.

8. Grease all required and marked lubrication points.

9. Check all fluid levels in the engine. Fill if required.

10. Check all belts for wear, cracking or misalignment.

Replace if required.

11. Check all belts for proper tension. If loose retighten

to proper tension.

12. Inspect clutch shoes for wear. Replace if fiber pad is

worn from shoe.

13. Inspect knives and make sure they are sharp and

properly installed. If there are round edges or nicks

that would not allow the blades to operate properly,

re-sharpen them. If the blades are cracked or

chipped replace them or they could cause serious

injury or property damage. Torque all blade bolts to

the proper torque.

14. Inspect that all hydraulic hoses are in good working

order and are not cracked, worn, or leaking.

15. Check that all safety devices and switches are

functioning properly before use.

16. Always shut chipper engine off, allow flywheel to

stop turning, disconnect the spark plug wires and

remove the key from the engine: before servicing

any part of the chipper.

17. Always insert safety pin into the flywheel before

replacing or servicing blades and anvils.

18. Read the manual from cover to cover before using

chipper.

19. Know the capabilities and limitations of the chipper

before using it.

20. THINK SAFETY!

TOWING

1. Before towing, inspect the safety latch on the hitch

coupler to make sure it is closed, latched, and pinned

to prevent premature uncoupling of chipper hitch.

2. Safety chains should be crossed under the tongue of

the chipper and hooked securely to the frame of the

towing vehicle.

3. Before towing be sure to rotate jack stand into the

transport position and make sure it is properly

secured.

4. Make sure that the person who will be towing the

chipper has been properly instructed about local and

state rules of the road and towing procedures.

5. DO NOT tow chipper faster than 45 MPH or chipper

may tip over when going around corners.

SAFETY POWERTEK

SAFETY RULES

DO’S

DO make sure that anyone who operates this chipper

reads and understands all operating instructions as to its

proper use and operation as well as all safety

instructions.

DO block the tires of chipper before using. DO check

engine oil level before starting. DO wipe up spilled fuel

right away from the engine and chipper before starting.

DO make sure there are no obstructions in the in feed

chute before starting the engine.

DO make sure all bolts, nuts and parts are tight before

starting.

DO make sure the discharge chute and deflector shield

are properly adjusted to dispatch chips in a safe

direction, away from pedestrians, animals, homes or

other property that could be injured or damaged.

DO keep children and pets away from the work area

while you are operating the chipper.

DO take care when chipping dead or frozen wood in

order to avoid kickback.

DO make sure that all safety decals are read and

understood before operating the chipper.

DO survey work area for any potential dangers for the

operators of equipment.

SAFETY GEAR

DO wear appropriate safety clothing. It is crucial to

protect the operator from serious injury.

DO wear eye protection (safety glasses or helmet with

safety face shield.)

DO wear hearing protection. (Ear plugs or muffs.)

DO wear gloves, heavy work shoes, and protective

clothes.

DO NOT’S

DO NOT operate the chipper alone. DO NOT allow

children to operate the chipper.

DO NOT use your feet or hands to force material into

the feed chute. Use a push stick to push smaller or stuck

branches into chute.

DO NOT ride or allow anyone else to ride on or in the

chipper.

DO NOT override any safety devices that have been

factory installed.

DO NOT operate chipper with upper chamber open.

DO NOT attempt to clear any debris from any chute or

chamber while the chipper is running. Disconnect spark

plug wires and remove the key before any clean out is

attempted.

DO NOT smoke or use any type flame or spark near the

chipper. Always refuel the engine in an open area and

with the engine shut off or the fuel may explode causing

serious injury or property damage.

DO NOT use the chipper under the influence of alcohol

or drugs or you may cause serious injury to yourself or

someone else.

DO NOT for any reason, reach into feed area or

chamber while chipper is running or serious injury or

death can result.

DO NOT wear loose clothing that may become

entangled in brush or machinery or serious injury or

death may occur.

DO NOT wear any strings on clothing that may become

entangled in brush or machinery or serious injury or

death may occur.

DO NOT wear any jewelry that may become entangled

in the brush or machinery or serious injury or death may

occur.

WORK ZONE POWERTEK

! !WARNING !!

When operating this unit do not allow anyone to be in the danger

zone while chipper is running or serious injury may occur.

ON SITE SETUP POWERTEK

JACK STAND

Once at your destination the chipper can be uncoupled

from or left attached to the towing vehicle. In either

case, the weight should be transferred from the vehicle

by lowering the jack stand. The wheels should be

blocked front & back as a safety precaution or

machine may move causing damage to property or

bodily harm. (See Fig. 2)

(Fig. 2)

ENGINE

Check the level of engine crankcase oil. If necessary,

add oil following the instructions in the maintenance

section of engine manual.

Check air filters for excessive dirt and oil and clean as

required following the instructions in the maintenance

section of engine manual.

DISCHARGE CHUTE

Loosen the discharge chute clamp and rotate the chute

to the desired position. Then tighten the chute clamp

to lock it into place. (See Fig. 3)

(Fig. 3)

!!CAUTION: !!

Make sure discharge chute is directed

away from pedestrians, homes, or other

potential safety hazards or injury or

property damage may occur.

OPERATION POWERTEK

STARTING GAS ENGINE

Set the throttle to idle speed. If the engine is cold set the

choke, then turn the key to “START” position. If the

engine does not start within 10 seconds allow a 60 second

cool down period between attempts. When the engine

starts let the key return to “RUN” position.

Allow the engine to warm up at an idle speed, for 30

seconds then open the throttle. As the centrifugal clutch

engages the flywheel will gradually come up to speed, the

process should take 30-35 seconds. Run the engine at full

RPMS.

Important! If engine is allowed to idle for long periods,

clutch damage will occur.

FEEDING MATERIAL

When feeding material into the hopper avoid pieces larger

than 7” in diameter or limbs that are not easily handled.

Stand to either side of the intake and feed limbs and

branches large end first.

If brush tends to hang in hopper alternate with small

branches and limbs, do not attempt to push brush into the

cutter by hand.

If the flywheel speed slows, stop feeding until unit regains

momentum. If speed is not regained shut the unit down by

putting feed bar in neutral and turning key to the off

position and inspect for clogging in the chute and flywheel

chambers as described in following section. Also check

the automatic feed control system to see if it is operating

properly.

CLEARING OUT DEBRIS

!!WARNING !!

Always shut down the unit and wait for all moving parts

to fully stop before clearing or adjusting the discharge

chute, flywheel or feedbox. Remove key from engine

before clearing machine and remove wires from spark

plug.

To clear the discharge chute: Remove the chute clamp,

take the chute off, and clear out any debris.

To clear the flywheel housing: First rotate the chute

around until it is pointing away from the chipper and is

parallel to the flywheel. Then remove the lock nut from

the housing with a 1 1/16” box wrench and tilt the chute

back slowly. (See Fig. 4) Check the housing and clear out

any debris.

(Fig. 4)

STOPPING

Always allow the chipper to run at full speed for a few

minutes before shutting down to clear chips so machine is

clean for next use. Do not leave any chips in chipper

because they may cause a hazard on the next start up.

Turn key to the “off” position while at full throttle. An

electronic fuel shut off will automatically stop fuel from

entering engine. Allow flywheel to stop turning before

working on the chipper. As a safety precaution always

remove the key before working on the machine or leaving

it unattended.

EMERGENCY STOP SWITCH

An emergency stop switch is supplied with this unit. The

red safety button is located at the top of the feed hopper.

Push the button to shut the chipper down. When button is

pushed the engine and feed roller will stop. The engine

will not restart until button is reset.

OPERATION POWERTEK

STARTING HYDRAULIC FEED

When chipping always run the engine at full throttle. Auto

feed will not work at a lower RPM.

When the control bar is in the upright position it is in

neutral and the feed rollers should not be turning.

To engage the feed roller, pull the bar towards you. Now

you may start feeding brush into the hopper. To reverse

the feed roller, push the control bar away from you. (See

Fig. 5)

The hydraulic feed system will not work unless engine is

running 3100 rpm.

(Fig. 5)

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