Billy Goat GZ401H User manual

Part No 610445 Form No F052913A
1
GZ Owner’s Manual
BILLY GOAT GRAZOR®
Owner's Manual
GZ401H & GZ451S
Accessories
8" PREMIUM HEAVY
DUTY REPLACEMENT
BRUSH
OEM quality
replacement wire
brush.
P/N 600172
DRIVE BELT
Original
Equipment Belt
for replacement.
P/N 610420
ENGINE
PULLEY
Original
Equipment
Pulley
for replacement.
P/N 610417
BRUSH DRIVE
PULLEY
Original
Equipment
Pulley
for replacement.
P/N 610403
8" STANDARD
REPLACEMENT
BRUSH
Standard
replacement wire
brush.
P/N 610140

Part No 610445 Form No F052913A
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GZ Owner’s Manual
CONTENTS
SPECIFICATIONS _______________________ 3
INSTRUCTION LABELS 4
PACKING CHECKLIST & ASSEMBLY 5
OPERATION 6-7
MAINTENANCE 8
TROUBLESHOOTING____________________________ 9
ILLUSTRATED PARTS & PARTS LISTS 10-11
Go to http://www.billygoat.com for French-Canadian translations of the product manuals.
Visitez http://www.billygoat.com pour la version canadienne-française des manuels de produits

Part No 610445 Form No F052913A
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GZ Owner’s Manual
Specifications
GZ401H GZ451S
Engine: HP
4.0 (2.98 kW)
4.5 (3.36 kW)
Engine: Model
GX120T1QA2
EX130D50031
Engine: Type
HONDA OHV
SUBARU OHV
Engine: Fuel Capacity
2.1 qt. (2.0 L)
3.0 qt (2.9 L)
Engine: Oil Capacity
0.63 qt. (0.6 L)
0.63 qt. (0.6 L)
Total Unit Weight:
84# (38.1 Kg)
85# (38.5 kg)
Max. operating slope
20o
20o

Part No 610445 Form No F052913A
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GZ Owner’s Manual
INSTRUCTION LABELS
The labels shown below were installed on your BILLY GOAT ®Grazor. If any labels are damaged or missing, replace them before operating this
equipment. Item numbers from the Illustrated Parts List and part numbers are provided for convenience in ordering replacement labels. The
correct position for each label may be determined by referring to the Figure and Item numbers shown.
LABEL WARNING GUARDS LABEL EXPLOSIVE FUEL DANGER FLYING DEBRIS LABEL READ MANUAL
ITEM #59 P/N 900327 ITEM # 2 P/N 400268 ITEM #66 P/N 810736 ITEM #58 P/N 890301
LABEL EAR EYE BREATHING LABEL EXPLOSIVE FUEL LABEL DANGER
ITEM #57 P/N 890254 ITEM # 63 P/N 610107 ITEM #5 P/N 600117
(Honda only)
ENGINE LABELS
THROTTLE CONTROLS
SUBARU HONDA
Subaru
Honda
IMPORTANT ENGINE INFORMATION EM
ENGINE FAMILY - 2FJXS, 1691GA DISPLACEMENT 169CM3
REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECFICATIONS
AND ADJUSTMENTS. THIS ENGINE CONFORMS TO U.S. EPA PH1 AND 2002 CALIFORNIA
EMISSION REGULATIONS FOR SMALL
OFF-ROAD ENGINES.
FUJI HEAVY INDUSTRIES LTD.
Choke
Fuel valve
Throttle
Choke
Throttle
Fuel valve

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GZ Owner’s Manual
PACKING CHECKLIST
Your Billy Goat is shipped from the factory in one carton, completely assembled except for the upper handle
assembly, lower handles, handle brace, brush lift rod, and brush.
PUT OIL IN ENGINE BEFORE STARTING
ASSEMBLY
READ all safety instructions before assembling unit.
TAKE CAUTION when removing the unit from the box.
All required assembly can be done using two 1/2" combination wrenches.
1. Install the lower handles one on each side of the unit using bolt (Item 45), washer (Item 54) and nut (Item 52). There are two bolts
per lower handle section. NOTE: The lower handle has a left and right hand section. Be sure when installing that each section will
point to the outside of the unit when hardware is secured.
2.Install upper handle assembly by aligning the holes in the upper handle with the holes in the lower handle stubs that are
preassembled on the machine. Secure the handles together using bolt (Item 46), washer (Item 54), and nut (Item 52) on the
operator’s right hand side. Secure using bolt (Item 64), washer (Item 54), and nut (Item 52) on the operator’s left hand side. Use the
same hardware to secure the flat end of the handle brace (Item 42) to the left side of the handle.
3. Secure the bent end of the handle brace (Item 42) to the face of the engine using bolt (Item 47)
4. Install the Brush Lift Rod (Item 38) by placing one end through the hole in the lift control arm mounted on the upper handle and
securing it with a washer (Item 54) and pin (Item 60). Place the other end thought the brush pivot arm and secure in the same way.
NOTE: The pin and washer come pre-installed in the ends of the rod (Item 38). Remove and re-use them for final assembly.
5. Install Brush (Item 6) by removing the Brush Guard (Item 27) and removing the brush mounting Nut (Item 15) and one Washer
(Item 16). Slide the brush on the shaft and reinstall the washer, nut, and brush guard.
Boxing Parts
Checklist
Handle upper
assembly 610438-S
Handle Brace
610442
Brush Lift Rod
610426
Handle Lower RH
610423
Handle Lower LH
610424
Brush 8” Wire
610140
Owner’s Manual
GZ 610428
Engine Manual Per
Model
Honda 4.0 HP
Subaru 4.5 HP
PARTS BAG &
LITERATURE ASSY
Warranty card P/N- 400972, Owner’s Manual P/N-610445, General Safety and Warnings manual P/N-100296.
Parts Bag Checklist
Safety Glasses
610129 qty. 1
12

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GZ Owner’s Manual
OPERATION
OPERATING HINTS:
A side-to-side sweeping motion is the quickest way to remove surface vegetation from crevices, even if deeper crevice cleaning is
desired.
After removing surface vegetation, the crevice will be more visible for a deeper cleaning.
Power Brush Safety Requirements
Warning –In normal power brushing operations, the material being removed such as burrs, scale, dirt, weld slat, or other residue,
will fly off the brush with considerable force along with brush filaments, which break off due to fatigue.
The Potential of Serious Injury Exists for both the brush operator and others in the work area (possible 50 or more feet from the
brush). To protect against this hazard, wear Safety Goggles or Full Face Shields Worn Over Safety Glasses With Side
Shields, along with Protective Clothing. You must follow all operator and safety instructions, as well as all common safety
practices, which reduce the likelihood of physical injury, or reduce its severity.
Summary –Power Brush Safety Requirements
Safety Goggles –Safety goggles or full face shields worn over safety glasses with side shields Must Be Worn by all Operators
and Others in the Area of Power Brush Operations.
Guards –Keep all machine guards in place.
Speeds –Observe all speed restrictions indicated on brushes, containers, labels or printed in pertinent literature. “MSFS” means
Maximum Safe Free Speed (RPM) –spinning free with no work applied. For reasons of safety, “MSFS” should not be exceeded
under any circumstances.
Protective Equipment –Appropriate protective clothing and equipment must be used where there is a possibility of injury that
can be prevented by such clothing or equipment.
Warning! Failure To Observe Safety Precautions May Result In Injury.
OPERATION
1. Do not operate product when barefoot or wearing open sandals. Always wear safety footwear, pants or slacks that cover your
legs.
2. DO NOT use product on graveled surfaces.
3. Never operate this product without good visibility or light.
4. Start the engine carefully. Make certain the brush is raised in the store position, and that the engine stop switch is set to “on”
before attempting to start. Keep hands, feet, clothing and the like well away from cutting member and other moving parts.
5. Never attempt to make any adjustments while engine is running.
6. Never direct discharge of material toward bystanders nor allow anyone near the area of operation. Use care in directing discharge
to avoid glass enclosures, automobiles and the like.
7. Stay alert for uneven pavement, holes in terrain or other unstable conditions when using this product. Always push the machine
slowly over rough surfaces.
8. Objects struck by the brush can cause injuries. The surface should always be carefully examined and cleared of all foreign objects
prior to operation. See brush safety instructions, below and next page.
9. Move brush lever to store position when the product is not in use. Take all possible precautions when leaving the machine
unattended. Disengage attachments and stop the engine.
10. When cleaning, repairing, or inspecting, make certain the brush and all moving parts have stopped, and the engine is not
running. Disconnect the spark plug wire and keep the wire away from the plug so that unintentional starting does not occur. Keep all
guards free from debris build-up.
11. Never operate this product without guards, plates or other protective devices in place.
12. Use only accessories and attachments supplied, or specifically recommended by the manufacturer.
13. Do not operate this product with a damaged or excessively worn brush.
14. CAUTION: Operate this product from a position where guards block the line of sight to the brush.

Part No 610445 Form No F052913A
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GZ Owner’s Manual
Brush usage Recommendations
Pressure –Avoid excessive pressure when using a power brush. Excessive pressure causes over-bending of the filaments and
heat build-up resulting in filament breakage, rapid dulling and reduced brush life. Instead of greater pressure on a brush, it is
suggested that you try: 1) a brush with a more aggressive cutting action (increased wire size, decreased filament length,
change to a different brush type, i.e., knot type instead of crimped wire type), or 2) higher speed (increased R.P.M., increased
brush diameter.)
Important Note: Never exceed the recommended Maximum Safe Free Speed R.P.M. (MSFS) rating of the brush.
Safety First
Failure to observe any of the requirements shown in the safety section will create hazards and can cause injury.
Brushing Problems –Do Not Allow unsafe Conditions To Continue. Occasionally, due to worn bearings, a bent spindle, an
unusual application, operator abuse, or inappropriate use, a brush may fail.
A brush which is not received in acceptable condition for trouble-free operation may also fail. Do not use or continue to use a
failed brush or one which is functioning improperly (i.e., throwing filaments, out-of-balance, etc.) as this increases the possibility
for further brush failure and hazard of injury. The cause of the failure should be evaluated and corrected.
This information is based on the collective experience of the ABMA Industrial Division members and provided solely as a public
service for the guidance of the users of the members’ products. These recommendations are not necessarily complete with
respect to any particular application and common sense safety considerations should be adhered to generally. Any applicable
federal, state, local law or regulation must be strictly adhered to, and is controlling over any recommendation contained herein.
Safety instructions
Twisted-In-Wire Brushes
The Twisted-In-Wire brushes, used under power, shall be securely held in a collet, chuck or similar holding device.

Part No 610445 Form No F052913A
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GZ Owner’s Manual
MAINTENANCE
PERIODIC MAINTENANCE
Periodic maintenance should be performed at the following intervals:
Maintenance Operation
Every Use (daily)
Every 5 hrs or (daily)
Every 25 Hours
Inspect for loose, worn or damaged parts.

Check for excessive vibration.

Inspect belt for wear.

Engine (See Engine Manual)
Service the air cleaner (see Engine manual for details)

Lubricate front wheels and rear wheels.

Grease brush arm mechanism.

CHANGING BRUSH
1. Wait for engine to cool and disconnect spark plug.
2. Remove the brush guard (item 27) by removing the two screws (item 45) that secure it in place. Use gloves and a shop rag to
hold the brush and prevent it from rotating.
3. Using a 3/4" wrench remove brush nut (item 15), and slide brush washer (item 16) off the bearing shaft.
4. Slide the brush (item 6) sideways off of the bearing shaft.
5. Install new brush over the shaft. NOTE: Be sure that to use the nylon bushing that comes with the Billy Goat replacement
brush to insure proper fit between the brush and the shaft.
6. Replace the brush washer (item 16), and the brush nut (item 15). Use a 3/4" wrench to torque the nut to 45 ft.lbs. to secure
the brush in place. Be sure to wear gloves and use a shop rag to hold the brush while tightening. Reinstall the brush guard that
was removed in step 2.
CHANGING BELT
1. Wait for engine to cool and disconnect spark plug.
2. Using two 1/2" wrenches, remove the bolt (item 45) and nut (item 52), one on each side, that secures the brush guard (item 27)
and the front pulley guard (item 31). Set the two guards aside.
3. Using a 3/8" wrench, remove the three bolts (item 4) that secure the rear pulley guard in place. Set the guard aside.
4. Slide the belt off the engine pulley and over the end of the crankshaft, and discard the old belt.
5. Install the new belt in the reverse order of removal.
6. Replace the guards and secure in place with using the hardware you removed.
NOTE: Use only factory original belts for maximum service life. BGI #610420 Inspect the pulleys when replacing the belt and
replace if worn or damaged.
CHANGING PULLEYS
NOTE: Pulleys should be replaced in pairs and not individually to obtain the maximum service life from you unit.
1. Wait for engine to cool and disconnect spark plug.
2. Remove the belt by following the Belt Replacement procedure on the preceding page.
3. Using a 5/32" allen wrench loosen the set screws, two per pulley that secure the pulleys in place.
4. Slide the pulleys off the shafts and slide the new pulleys in place.
5. Use a long straight edge to align the pulleys before tightening the setscrews in place.
6. Torque the setscrews to15 ft. lbs. to secure them.
7. Replace the belt and all guard by referring to the Belt Replacement procedure on the preceding page.
NOTE: Use only factory original pulleys as replacement parts. Inspect the belt when replacing the pulleys and replace if worn or
damaged.
TIRE AIR PRESSURE
Check at regular intervals and maintain.
Rear Tires - 24 Psi (17 kPa).

Part No 610445 Form No F052913A
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GZ Owner’s Manual
Troubleshooting
Problem Possible Cause Solution
Engine will not start.
Stop switch of. Throttle in off position. Engine
not in full choke position. Out of gasoline. Bad
or old gasoline. Spark plug wire disconnected.
Dirty air cleaner.
Check stop switches, throttle, choke
position and gasoline. Connect spark
plug wire. Clean or replace air cleaner.
Or contact a qualified service person.
Abnormal vibration. Loose or out of balance brush or loose engine. Replace brush. Check engine hardware.
Brush Stalls Worn belt or pulleys or both Replace belt and or pulleys
Belt comes off Pulleys not aligned. Bent belt guard Align pulleys. Replace bent guards.
Engine is locked, will not
pull over.
Engine Problem
Contact and engine servicing dealer for
engine problems.

Part No 610445 Form No F052913A
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GZ Owner’s Manual
PARTS DRAWING GZ

Part No 610445 Form No F052913A
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GZ Owner’s Manual
PARTS LIST
item PARTS GZ401H QTY GZ451S QTY
no. LIST Part No. Part No.
1 Bushing Pivot Frame 360183 2360183 2
2 Label Hot Engine EN/SP - - 100261 1
3 Grip Handle 1" X 13" 400570 2400570 2
4 Screw self tap 1/4-20 x 5/8 type F 890359 2890359 2
5 Label Danger 600117 1600117 1
6 Brush 8" Wire Heavy Duty Premium* 600172 1600172 1
Brush 8" Wire Standard* 610140 1610140 1
7 Caster 5" Dia. X 2" 610101 1610101 1
8 Wheel 8" x 2.25" w / 0.625 Bearing 610375 2610375 2
9 Engine 4.0 HPHonda GX120K1QA2 610105 1 - -
Engine 4.5 HPSubaru EX13 - - 610437 1
10
11 Label Height Adjust GZ 610113 1610113 1
12 Glasses Safety 610129 1610129 1
13 Axle Grazor 610131 1610131 1
14
15 Nut Jam1/2-20 w/Lock 610305 1610305 1
16 Washer 1/2" X 2" 610308-P 2 610308-P 2
17 Pin Roll 1/4" X 1 3/4" 610319 1610319 1
18 Nut Lock 1/2-13 Thin Ht. 8161044 28161044 2
19 Pin Screw 610347 1610347 1
20 Washer Fibre 610348 1610348 1
21 Fitting Grease 610363 1610363 1
22 Mandrel GZ W/ BEARING 610370-S 1 610370-S 1
23 ArmPivot WA GZ 610402 1610402 1
24 Pulley 3" ODX 5/8" Bore 610403 1610403 1
25 Spring Brush Arm 610404 1610404 1
26 Guard Rear Pulley 610405 1610405 1
27 Guard Brush WA GZ 610406 1610406 1
28 Plate Dirt Deflector 610413 1610413 1
29 Flap Rubber Dirt Deflector 610414 1610414 1
30 Pulley 3.25" ODX 3/4" Bore 610417 1610417 1
31 Guard Belt Brush WA 610418 1610418 1
32 Belt Gates #6831 610420 1610420 1
33 Base Engine WA GZ 610421 1610421 1
34 Handle Upper GZ 610422 1610422 1
35 Handle Lower RH GZ 610423 1610423 1
36 Handle Lower LHGZ 610424 1610424 1
37 Plate Quad GZ 610425 1610425 1
38 Rod Lift ArmGZ 610426 1610426 1
39 ArmLift GZ 610427 1610427 1
40 Spring Lever GZ 610429 1610429 1
41 Plate Height Adjust Mount 610431 1610431 1
42 Brace Handle GZ 610442 1610442 1
43 Screw cap 5/16-18 X 3/4" 8041026 28041026 2
44 Screw cap 5/16-18 X 1" 8041028 68041028 6
45 Screw cap 5/16-18 X 1 1/2" 8041030 88041030 8
46 Screw cap 5/16-18 X 1 3/4" 8041031 78041031 7
47 Screw cap 5/16-24 X 5/8" 8042026 18042026 1
48 Screw cap #10-24 X 5/8" 8059135 38059135 3
49 Screw Set 5/16-18 X 5/16" 8084106 48084106 4
50 Spacer 5/8" X 2 1/4" 350130 2350130 2
51 Nut Lock #10-24 Lt. Hex 8164005 38164005 3
52 Nut Lock 5/16-18 8160002 23 8160002 23
53 Nut Lock 5/8-11 8160007 18160007 1
54 Washer 5/16" Flat 8171003 14 8171003 14
55 Washer 5/16" SAE 8172008 48172008 4
56 Grip Lever Lift 840191 1840191 1
57 Label Ear Eye Breathing 890254 1890254 1
58 Label Read Manual 890301 1890301 1
59 Label Danger 900327 1900327 1
60 Pin Hair 1/4" 900471 2900471 2
61 Washer Flat 1.75 ODX 1.06 ID X 0.100 8172021 18172021 1
62 Key 3/16" X 1" 9201078 19201078 1
63 Key Woodruff 3/16 X 3/4 850234 1850234 1
64 Screw cap 5/16-18 X 2" 8041032 18041032 1
65 Label GZ decal 610444 1610444 1
66 Label Danger Flying Debris 810736 1810736 1
67 Washer 1/4 Flat ZP 8171002 18 8171002 18
68 Screw sm1/4" x 1" drill pt. 430208 3430208 3
69
70 Label Spark Arrestor EN/SP 100256 1 - -
75 Label Made in U.S.A. 520116 1520116 1
76 Handle Assy GZ Service 610438-S 1 610438-S 1