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 11

10. Replace or sharpen chipper blade.

11. When sharpening blade, protect hands by using 

gloves and follow the original angle of grind.

12. Reassemble by performing steps 1 through 9 in 

reverse order.

• Tighten blade screws to 210 - 250 in-lbs.

• Tighten impeller bolt to 375 - 425 in-lbs. 

NOTE: 

Make certain blade is reassembled with the 

sharp edge facing upward.  See Figure 16.

Figure 16   

SECTION 7:  OFF-SEASON 
STORAGE

The following steps should be taken to prepare your 
chipper shredder vacuum for storage. 

1.

Remove all dirt from exterior of engine and equip-
ment.

2.

Refer to engine manual for correct engine storage 
instructions. 

3.

Wipe unit with an oiled rag to prevent rust (use a 
light oil or silicone), especially if storing in an 
unventilated or metal storage shed. 

4.

Store in a dry, clean area. Do not store next to cor-
rosive materials, such as fertilizer.

SECTION 8:  TROUBLE SHOOTING GUIDE

Chipper

Impeller

Assembly

Blade

Flail
Blade

Trouble

Possible Cause(s)

Corrective Action

Engine fails to start 

Fuel tank empty or stale fuel.

Spark plug wire
disconnected.
Cannot pull recoil cord.

Choke not in ON position.
Faulty spark plug.     
Safety switch not depressed.

Safety switch wire is discon-
nected to engine or not prop-
erly grounded. 

Fill tank with clean, fresh gasoline. Fuel will not last over 
thirty days unless a fuel stabilizer is added.
Connect wire to spark plug.

Obstruction lodged in impeller. Disconnect spark plug wire 
and remove lodged object.
Move CHOKE (if equipped) to ON position.
Clean, adjust gap or replace.
Safety switch must be depressed by the front tab on the 
bag handle when securing the bag.
Connect safety switch wire to engine connector and ground 
to mounting bracket.

Loss of power; operation 
erratic

Spark plug wire loose.     
Unit running on CHOKE.     
Blocked fuel line or stale fuel.     

Water or dirt in fuel system.     

Low engine RPM.

Connect and tighten spark plug wire.
Move choke lever (if equipped) to OFF position.
Clean fuel line; fill tank with clean fresh gasoline. Fuel will 
not last over thirty days unless a fuel stabilizer is used.
Disconnect fuel line at carburetor to drain fuel tank. Refill 
with fresh fuel. 
Always run engine at full throttle.

Too much vibration 

Loose parts or damaged 
impeller.

Stop engine immediately and disconnect spark plug wire. 
Have unit serviced by a an authorized service dealer.

Unit does not discharge

Discharge chute clogged.

Foreign object lodged in 
impeller.
Low engine RPM.
Vacuum bag is full.     

Stop engine immediately and disconnect spark plug wire. 
Clean flail screen and inside of discharge opening. See 
Maintenance section of this manual.
Stop engine immediately and disconnect spark plug wire. 
Remove lodged object.
Always run engine at full throttle.
Empty bag.

Rate of discharge slows 
considerably or 
composition of discharged 
material changes

Low engine RPM.
Chipper blade dull.

Always run engine at full throttle.
Replace chipper blade or see your authorized service 
dealer.

Summary of Contents for Yard-Man 020

Page 1: ...d unless the engine s exhaust system is equipped with a spark arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained in effective working order by t...

Page 2: ...SECTION 2 CALLING CUSTOMER SUPPORT LOCATE YOUR MODEL NUMBER AND SERIAL NUMBER Record this information in the space provided To find your unit s specific model number and serial number see SECTION 1 FI...

Page 3: ...ks bot tles cans or other foreign objects are not included Personal injury or damage to the machine could result Always wear approved safety glasses or safety goggles during operation and while perfor...

Page 4: ...dder vacuum 3 SERVICE Use extreme care in handling gasoline and other fuels They are extremely flammable and the vapors are explosive Store fuel and oil in approved containers away from heat and open...

Page 5: ...remove bag and handle assembly Check for any other loose parts before discarding carton LOOSE PARTS IN CARTON See Figure 3 Handle Assembly Bag Blower Chute Assembly If Equipped Oil Not Shown Operator...

Page 6: ...ver the front tab on the bag handle to secure bag in place 3 Snap bag clip to the top of the lower handle 4 Place the lower straps on the bag over the top the lower handle hooking them on the studs NO...

Page 7: ...on engine to CHOKE position A warm engine may not require choking Engines with primer Prime engine as instructed in separate engine manual 4 The throttle control is located on the engine Move engine...

Page 8: ...charge area If the flail screen becomes clogged remove and clean as instructed in SECTION 6 MAINTENANCE For best performance it is important to keep the chipper blade sharp Refer to SECTION 6 MAINTENA...

Page 9: ...Spark plug replacement is recom mended at the start of each season check engine manual for correct plug type and gap specifications Clean the engine regularly with a cloth or brush Keep the cooling sy...

Page 10: ...lower housing to the upper housing See Figure 14 Figure 14 5 Remove lock nut that secures flail screen to the lower housing The flail screen does not have to be removed See Figure 10 and Figure 12 6...

Page 11: ...lug Obstruction lodged in impeller Disconnect spark plug wire and remove lodged object Move CHOKE if equipped to ON position Clean adjust gap or replace Safety switch must be depressed by the front ta...

Page 12: ...12 Model 020 1 2 3 4 5 6 7 9 10 11 13 12 13 5 5 16 16 17 18 7 20 15 21 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 38 36 29 8 36 7 39 40...

Page 13: ...0119 Lock Washer 5 16 24 712 0411 Hex Lock Nut 5 16 24 25 681 0152 Impeller Ass y 26 719 0329 Flail Blade 27 781 0735 Pin Clip 28 711 1401 Clevis Pin 29 715 0166 Spiral Pin 30 736 0247 Flat Washer 3...

Page 14: ...14 Model 020 1 2 3 4 5 5 6 7 8 9 9 10 11 11 12 13 12 14 15 16 17 18 19 20 21 12 12 22 14 23 17 25 27 26 28 29 30 31 18 32 33 34 21 17 14 35 33...

Page 15: ...6 0105 Bell Washer 401 ID x 870 OD 19 734 1992 Wheel 9 x 2 20 738 1015 Shoulder Screw 3 8 16 21 731 1426 Hubcap 22 781 0725 Front Wheel Support Brace 23 781 0765 Hgt Bracket Adjuster LH 781 0766 Hgt B...

Page 16: ...rate manufacturer s warranty Please refer to the applicable manufacturer s warranty on these items b Routine maintenance items such as lubricants filters blade sharpening and tune ups or adjustments s...

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