Dr trimmer mower Pro Manuale utente

DR®TRIMMER/MOWER™Assembly & Operating Instructions i

And congratulations on your purchase of a new DR®

TRIMMER/MOWER™!

We have done our utmost to ensure that your DR®will

be one of the most trouble-free and satisfying pieces of

equipment you have ever owned.

Please let us know of any questions or problems you

may have. We want to answer or correct them as quickly

as possible. (When you do call or write, please have your

serial number and/or order number handy—it will speed

things up!) We also hope to hear from you on how much

you like your new helper.

And please tell your friends about your new DR®

TRIMMER/ MOWER™. Having DR®Owners spread the

word about our products and our way of doing business is

the best advertising we can have, and it's the best way to

help us provide even better service in the years to come.

Thanks once again!

for all of us at...

COUNTRY HOME PRODUCTS®

DR®TRIMMER/MOWER™Assembly & Operating Instructionsii

Safety Instructions

We want you to enjoy years of productive use from your DR®TRIMMER/MOWER™. We don't

want you to get injured, so please take a few moments to read the following guidelines for safely

operating your new machine.

Dress Appropriately

·Always wear protective goggles (provided with your DR®TRIMMER/MOWER™) while

mowing, to protect your eyes from possible thrown objects.

·Wear shoes with non-slip treads when using your DR®TRIMMER/MOWER™. If you have

safety shoes, we recommend wearing them. Do not use the machine while barefoot or

wearing open sandals.

·Wear long pants while trimming, and avoid wearing loose clothing or jewelry which might

get caught on the mower's moving parts.

·Use ear muffs or ear plugs to protect your valuable hearing.

Preparation

·Read these Assembly & Operating Instructions and the engine manufacturer's owner's

manual before you use the DR®TRIMMER/MOWER™. Become familiar with the controls,

engine and service recommendations to ensure the best performance from your machine.

·Inspect the area you'll be working in for hidden objects such as large rocks, logs, rope, wire,

garden tools, etc., and remove these obstacles before mowing. Do not attempt to mow over

obstacles as this could damage the machine and cause injury.

Operating the Machine Safely

·Only use the DR®TRIMMER/MOWER™for trimming and mowing grass, weeds, and other

growth as specified in this manual.

·Use only manufacturer-recommended replacement parts and accessories.

·Never bend, cut, fit, weld, or alter the DR®TRIMMER/MOWER™in any way.

Modifications to your machine could cause personal injuries and property damage, and may

void your warranty.

·ALWAYS shut off the engine and remove the spark plug wire prior to making any

adjustments to the machine. If you have to stop to remove grass or debris from the underside

of the deck, ALWAYS disconnect the spark plug wire first.

·The exhaust area on the engine becomes very hot. Allow the engine to cool before doing

maintenance or making adjustments.

·When operating over uneven terrain and slopes, use EXTREME CAUTION and ensure solid

and firm footing at all times.

·Use extra caution when mowing in wet, slippery conditions.

·As with any trimmer, the tips of the cutting cords on the DR®TRIMMER/MOWER™can

throw sticks, small stones, gravel, and bits of debris for long distances at great velocity. The

faster the cutting cords are spinning, the farther debris may be thrown. Do not move over

loose materials such as gravel or mulch with the trimmer head spinning. Doing so could

cause personal injury or property damage from thrown objects.

DR®TRIMMER/MOWER™Assembly & Operating Instructions iii

·Turn off the engine whenever you leave the operating position. Never leave the engine

running when refueling, changing cords or checking, cleaning or working on the machine.

·Never allow children or animals near the work area. Keep at least 50 feet clear of

bystanders, and always turn the machine off when someone approaches to avoid causing

injury from thrown objects.

·Never allow children or people unfamiliar with these instructions to use the DR®

TRIMMER/ MOWER™.

·Be cautious when using your DR®TRIMMER/MOWER™around fencing, wires, ropes, and

hoses. It is possible that these and other debris can become wound around the line plates of

the machine, potentially damaging the bearings or injuring the operator.

·Use the machine only in daylight or good artificial light.

·Never operate the machine with a damaged shield or without the shield in place.

·Do not operate the machine when under the influence of alcohol or medication.

·Watch for traffic when mowing near roadways.

Safety with Gas-Powered Machines

·Do not run the engine in an enclosed area or without proper ventilation.

·Store all fuel in containers specifically designed for this purpose. Plastic containers are more

likely to prevent sediment and condensation problems.

·Refuel outdoors only, and do not smoke while refueling or operating the machine.

·If gas is spilled, do not attempt to start the engine. Move the machine away from the area of

the spill and avoid creating any source of ignition until the gas vapors have dissipated. Wipe

up any spilled fuel to prevent a fire hazard, and properly dispose of the waste.

·Allow the engine to cool completely before storing in any enclosure. Never store the

machine with gas in the tank near an open flame or spark.

·Do not change the engine governor settings or modify the engine speed.

·Some state and local regulations require the use of a spark arrester on gas powered

engines. Contact your local fire marshal or forest service for specific information

pertaining to your area. If you are required to use a spark arrester, please contact one

of our Customer Service Representatives for assistance in obtaining and installing one.

Warning to All California and Other Users

Under California and Washington State laws, and the laws of some other states, you are not

permitted to operate an internal combustion engine using hydrocarbon fuels without an engine

spark arrester. All DR®TRIMMER/ MOWERS shipped to California and Washington state are

provided with spark arresters. Failure of the owner/operator to maintain this equipment in

compliance with state regulations is a misdemeanor under California law and may be in violation

of other state and/or federal regulations. Contact your local fire marshal or forest service for

specific information in your area.

DR®TRIMMER/MOWER™Assembly & Operating Instructionsiv

Table of Contents

SAFETY INSTRUCTIONS..............................................................................................................................................II

Dress Appropriately........................................................................................................................................................ ii

Preparation...................................................................................................................................................................... ii

Operating the Machine Safely......................................................................................................................................... ii

Safety with Gas-Powered Machines .............................................................................................................................. iii

Warning to All California and Other Users ................................................................................................................... iii

TRIMMER PARTS & COMPONENTS ..........................................................................................................................1

ASSEMBLY COMPONENTS...........................................................................................................................................2

ASSEMBLY ........................................................................................................................................................................3

CONTROLS & FEATURES .............................................................................................................................................9

STARTING & OPERATING..........................................................................................................................................10

Electric-Starting.............................................................................................................................................................10

Manual-Starting .............................................................................................................................................................10

Stopping the Engine.......................................................................................................................................................11

Engaging the Trimmer Head..........................................................................................................................................11

Stopping the Cords Spinning .........................................................................................................................................11

Using the Parallel Trimming Action (PTA™) Feature ...................................................................................................12

Cutting Cords.................................................................................................................................................................13

Cord Tips.......................................................................................................................................................................15

Adjusting the Cutting Height.........................................................................................................................................16

Mow-Ball™Support.......................................................................................................................................................16

Adjusting the Handlebar ................................................................................................................................................16

Obstacles........................................................................................................................................................................17

Heavy Growth................................................................................................................................................................18

Wet Conditions ..............................................................................................................................................................18

Very Dry Conditions......................................................................................................................................................18

Slopes.............................................................................................................................................................................18

Windrows.......................................................................................................................................................................19

Firebreaks.......................................................................................................................................................................19

End-of-Season Garden Clean-Up...................................................................................................................................19

MAINTENANCE..............................................................................................................................................................20

Regular Maintenance.....................................................................................................................................................20

Battery Care (Electric-Starting Models Only) ...............................................................................................................21

To Remove the Mow-Ball™Support Assembly.............................................................................................................22

To Reassemble the Mow-Ball™Support Assembly.......................................................................................................23

To Partially Lower the Bearing Housing Assembly (to remove debris)........................................................................24

To Check the Bearing Housing Assembly for Damage.................................................................................................24

To Remove and Replace the Bearing Housing Assembly .............................................................................................25

To Replace the Belt........................................................................................................................................................27

To Adjust the Belt Tension through the Trimmer Control Cable ..................................................................................28

To Adjust the PTA™Feature..........................................................................................................................................29

TROUBLESHOOTING...................................................................................................................................................30

PARTS LIST.....................................................................................................................................................................34

SCHEMATIC DRAWINGS ............................................................................................................................................36

DAILY CHECKLIST FOR THE DR®TRIMMER/MOWER™...........................................................BACK COVER

DR®TRIMMER/MOWER™Assembly & Operating Instructions 1

Trimmer Parts & Components

The following parts and assembly components should be in your DR®TRIMMER/MOWER™

package. Please check your shipping box(es) and parts package(s) for the items listed below. If

your shipment is incomplete or if you have any questions, please call us TOLL-FREE

1(800)DR-OWNER(376-9637).

Assembly Components:

1—Upper Handlebar [#143641], Commercial Model, or

[#144071], PRO Model

1—Lower Handlebar [#143631], Commercial Model, or

[#144061], PRO Model

2—Handlebar Adjuster Assemblies [#145801] in separate plastic bag

1—Axle [#114261]

1—Rubber Stone Guard [#116801]

1—PTA™Lever [#118221]

1—Acrylic Shield Assembly [#120521]

2—Wheels [#139861], Commercial Model, or

[#121761], PRO Model

Parts Bag Contents:

2—Wheel Retainer Rings [#119551]

2—Stone Guard Clamps [#131031]

1—Black Nylon Axle Washer [#121521]

4—5/16" Washers [#121691]

5—Lock Nuts 5/16"-18 (larger size) [#110761]

2—Set Screws 1/4"-20 Square Head [#120161]

7—Slotted Hex Head Bolts 10-24 x 5/8" Long [#114781]

7—Lock Nuts 10-24 (smaller size) [#118731]

2—U-Bolts [#114851]

1—PTA™Lever Grip [#117491]

Please refer to Figure 1 on the next page when preparing to assemble your DR®TRIMMER/

MOWER™. We recommend laying the parts out in sets, as we have shown them, before

assembly.

DR®TRIMMER/MOWER™Assembly & Operating Instructions2

Assembly Components

Figure 1

DR®TRIMMER/MOWER™Assembly & Operating Instructions 3

Assembly

WARNING! Do not attempt to start the engine until all assembly steps are complete, and

you have ADDED GAS AND OIL to the engine.

Tools & Supplies Needed:

• flat head screwdriver

• 1/2" and 3/8" wrenches, adjustable

wrench, or socket set

• 7/16" wrench (Commercial Model)

• pliers

• SAE30 High Detergent motor oil

• funnel (preferably with filter)

• unleaded gasoline

Step 1: Install the Axle

1. Start with the orange housing upside

down. Leave the packaging on the

front end in place to balance the

machine during assembly.

2. Place the black nylon axle washer

over the axle stud at the center back

of the housing (Figure 2).

3. Insert the axle through the slot in the

outside of the housing so the plate

faces the axle stud (Figures 2 & 3).

4. Center the axle and slide the hole in

the notched plate over the stud so that

it rests flush against the nylon

washer. Be sure the axle is seated on

the axle stud solidly (Figure 3).

5. Screw a 5/16" lock nut onto the axle

stud using a 1/2" wrench or socket.

Tighten it until there is resistance, then

back off 1/2 turn. [If the bolt is too

tight, it will be hard to operate the

Parallel Trimming Action (PTA™)

Feature.]

Figure 2

Figure 3

WARNING!

THIS MACHINE IS SHIPPED WITHOUT OIL!

TRACES OF OIL MAY BE IN RESERVOIR

FROM FACTORY TESTING, BUT YOU MUST

ADD OIL BEFORE STARTING ENGINE. FILL

RESERVOIR SLOWLY, CHECKING DIPSTICK

FREQUENTLY TO AVOID OVERFILLING.

DR®TRIMMER/MOWER™Assembly & Operating Instructions4

Step 2: Attach the Rubber Stone Guard

1. Take one of the two stone guard clamps and position it around the axle (Figure 4). Install the

second clamp midway along the opposite side of the axle in the same way. Turn the open

ends of the clamps upward.

2. Holding the rubber stone guard vertically over the axle, slip one side of the stone guard in

between the clamp end so that the hole in the guard is aligned with the holes in the clamp.

Insert a 5/8" long bolt and attach a lock nut (Figure 5). Tighten with a 3/8" wrench or socket

and screw driver until the threads show. Do not over tighten. Repeat on the other side. The

stone guard should swing freely from the axle.

Step 3: Install the Wheels

1. Mount each wheel on the axle. Push

the wheels firmly against the axle

stop.

2. Place a retaining ring on the axle,

against the wheel, and tighten the set

screw (Figure 6) with a wrench or

pliers. Repeat on the other side.

Step 4: Set the Machine

Upright

Note: Be careful not to kink, twist or

stretch the control cables.

1. Remove the packaging from the front

end.

2. Stand at one side of the machine, holding on to one wheel with one hand, and the nose of the

machine with the other. Lift the nose of the machine up and over until the Mow-Ball™

Support is resting on the ground and the machine is upright (most of the weight is on the

wheels during this maneuver).

Figure 4 Figure 5

Figure 6

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