Harbor Freight Tools Chainsaw 44493 User Manual

®
18 VOLT CORDLESS  
CHAINSAW  
44493  
ASSEMBLY AND OPERATING INSTRUCTIONS  
Distributed Exclusively by Harbor Freight Tools®.  
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Copyright © 2000 by Harbor Freight Tools®. All rights reserved. No portion of  
this manual or any artwork contained herein may be reproduced in any shape or  
form without the express written consent of Harbor Freight Tools.  
For technical questions and replacement parts, please call 1-800-444-3353  
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7. Dress properly. Do not wear loose clothing or jewelry as they can be caught in  
moving parts. Protective, electrically non-conductive clothes and non-skid footwear  
are recommended when working. Wear restrictive hair covering to contain long hair.  
8. Use eye and ear protection. Always wear ANSI-approved impact safety goggles.  
Wear a full face shield if you are producing metal filings or wood chips. Wear an ANSI  
approved dust mask or respirator when working around metal, wood, and chemical  
dusts and mists.  
9. Do not overreach. Keep proper footing and balance at all times. Do not reach over or  
across running machines.  
10. Maintenance. For your safety, service and maintenance should be performed  
regularly by a qualified technician.  
11. Disconnect power. Remove Battery from tool when not in use.  
12. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches  
are removed from the tool before using.  
13. Avoid unintentional starting. Be sure the switch is in the Off position when not in  
use. Do not carry any tool with your finger on the trigger.  
14. Stay alert. Watch what you are doing, use common sense. Do not operate any tool  
when you are tired.  
15. Check for damaged parts. Before using any tool, any part that appears damaged  
should be carefully checked to determine that it will operate properly and perform its  
intended function. Check for alignment and binding of moving parts; any broken parts  
or mounting fixtures; and any other condition that may affect proper operation. Any  
part that is damaged should be properly repaired or replaced by a qualified  
technician. Do not use the tool if any switch does not turn On and Off properly.  
16. Do not operate tool if under the influence of alcohol or drugs. Read warning  
labels on prescriptions to determine if your judgment or reflexes are impaired while  
taking drugs. If there is any doubt, do not operate the tool.  
17. People with pacemakers should consult their physician(s) before use.  
Electromagnetic fields in close proximity to heart pacemaker could cause pacemaker  
interference or pacemaker failure. In addition, people with pacemakers should:  
18. Some dust created by power sanding, sawing, grinding, drilling, and other  
construction activities, contains chemicals known [to the State of California] to  
cause cancer, birth defects or other reproductive harm. Some examples of these  
chemicals are: Lead from lead-based paints Crystalline silica from bricks and cement  
or other masonry products Arsenic and chromium from chemically treated lumber  
Your risk from these exposures varies, depending on how often you do this type of  
work. To reduce your exposure to these chemicals: work in a well ventilated area, and  
work with approved safety equipment, such as those dust masks that are specially  
designed to filter out microscopic particles. (California Health & Safety Code §  
25249.5, et seq.)  
REV 07j  
SKU 44493  
Page 3  
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Unpacking  
When unpacking, check to make sure the following parts are included.  
Cordless Chainsaw, 18 Volt Battery Pack, Charger, Blade Cover, and Oil Bottle.  
If any parts are missing or broken, please call Harbor Freight Tools at the number on the  
cover of this manual as soon as possible.  
Battery Precautions  
1. Read all instructions and warnings on the battery before charging the battery.  
2. To avoid accidents, charge the supplied battery only. Do not use a different charger  
with this battery.  
3. Do not expose the battery (or tool) to rain or wet conditions.  
4. To avoid damage of cable and plug, never pull the cable to disconnect the charger.  
5. Do not use the charger if the cable or plug are damaged.  
6. Repairs should be carried out by qualified technicians only.  
7. Do not touch the battery poles with any conductive source.  
8. Do not store the battery in a box with other metal objects.  
9. Do not throw the battery in a fire.  
Operational Warnings  
Warning: Improper use of this chainsaw can cause serious injury or death.  
1. Avoid Kickback by not causing the wood to pinch the saw Chain (15).  
2. Do not cut using the upper side of the saw Chain. Do not remove the tip guard located  
on the tip of the saw Chain. The Front Hand Guard must be in place at all times.  
3. Firmly grip both handles of the chainsaw while cutting. Never cut with one hand!  
4. Begin cutting only when motor is at full speed.  
5. Do not overreach or cut above chest height.  
6. Cut using the lower side of the saw chain, and always away from your body.  
7. Always stop motor before carrying or setting down the chainsaw.  
8. Keep bystanders away from the work area.  
9. Be prepared for small branches to be caught in the chain path, stopping saw chain  
movement.Turn off power switch before clearing caught branches.  
10. Have a steady footing before cutting. Never cut from atop a ladder.  
Warning:The warnings, cautions, and instructions discussed in this instruction manual  
cannot cover all possible conditions and situations that may occur. It must be under-  
stood by the operator that common sense and caution are factors which cannot be  
built into this product, but must be supplied by the operator.  
REV 07j  
SKU 44493  
Page 4  
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Charging Battery  
The Battery does not come charged from the factory. Charge for 5 to 6 hours before using.  
1. Plug the Charger cord into an electrical outlet.  
2. Insert the battery (32) into the Charger Base. The battery can only insert one way.  
Battery (32)  
Warning: Never  
charge battery more  
Charger  
than 12 hours  
continuously. Charg-  
ers should not be left  
plugged in, or charg-  
ing for more than 12  
hours.  
SET Button  
OFF Light  
ON Light  
4. Press the Set button to start the charging  
The ON indicator light should come on. If it does not come on, check the power  
connection or try a different outlet.  
5. Charge the Battery for 5 to 6 hours.  
Subsequent full charges should take less time. When battery is completely charged,  
the Charger will automatically shut off. The ON Indicator light will turn off, and the OFF  
indicator will light.  
6. After charging, unplug the Charger from the wall outlet.  
7. Insert the Battery into the Chainsaw.  
Note: the operation time of a new battery will ramp up as it is properly used and recharged.  
Inserting Battery into Unit  
1. Insert Battery (32) into the receptacle at the Chainsaw handle bottom. It can only fit in  
one way.  
2. Secure the lock-spring clasps to each side of the handle.  
Cutting Operation  
1. Stand in front of the wood to be cut with your feet firmly in place.  
2. Grasp the Rubber Cover (22) with your left hand.  
SKU 44493  
Page 5  
Rev 02d  
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Oil Bottle  
Safety Switch (35)  
Chain Guide Bar (14)  
Tip Guard  
Lock-spring Clasps  
Battery (32)  
Chain (15)  
Rubber Cover (22)  
Switch Button (29)  
3. With your right hand, press down on the Safety Switch (35), then press the Switch  
Button (29).  
The Switch Button cannot be squeezed unless the Safety Switch is depressed. With  
the Chainsaw running, you can let go of the Safety Switch.  
4. Begin cutting with a light downward pressure.  
Allow the saw chain to cut at its own rate. Applying too much pressure can damage  
the Motor and Gear Assy (28), Chain (15), or Chain Guide Bar (14).  
Warning: Kickback may occur when the nose or tip of the Chain Guide Bar touches an  
object, or when the wood closes in and pinches the saw Chain in the cut. Use extreme  
caution and have complete control of the Chainsaw using a firm grip with both hands.  
5. To turn the Chainsaw off, release the Switch Button (29). Remove the Battery (32)  
when the Chainsaw is not in use.  
6. After cleaning the Chainsaw, place the Chain Cover over the Chain.  
Maintenance  
Always remove the Battery first, before performing any maintenance on the Chainsaw.  
1. Apply a light oil to the Chain before using, and after every 10 minutes of use.  
Oil is automatically applied when the Oil Bottle is full. The Chain must always be well  
lubricated when the Chainsaw is in use.  
2. The Chain must be snug at all times. If the Chain becomes loose, remove the Left  
Chain Cover (12) and retighten Chain Guide Bar (14) mounting hardware.  
3. Periodically sharpen Chain. Chain must be sharp for efficient saw operation.  
4. To clean the Chainsaw, wipe with a clean rag. Apply a small amount of light oil.  
Periodically remove Right Chain Cover (1) and clean out debris. Replace cover.  
5. Periodically recharge the Battery when not in use. This will maintain Battery life.  
6. Periodically turn the Chain Guide Bar (14) over to distribute the wear on it. Replace  
Guide Bar when bent, cracked, or when the Chain moves side-to-side on it.  
SKU 44493  
Page 6  
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Parts List  
Item #  
Description  
Item #  
Description  
Right Chain Cover  
21 Left Case  
1
2
3
4
5
6
7
8
9
Inner Gear  
Epicyclic Gear  
Spindle  
22 Rubber Cover  
23 Motor Cover  
24 Relief  
Bearing  
25 Spring  
Plate  
26 Electric Wire  
27 Motor Support  
28 Motor and Gear Assy  
29 Switch Button  
30 Right Case  
Crosshead Self-tapping Screw  
Washer  
Sprocket  
10 Washer, Bore  
11 Locking Ring  
31 Hex Key  
12 Left Chain Cover  
13 Crosshead Self-tapping Screw  
14 Chain Guide Bar  
15 Chain  
32 Battery  
33 Connector, Body to Battery  
34 Switch  
35 Safety Switch  
36 Safety Spring  
38 Crosshead Self-tapping Screw  
16 Washer  
17 Spring Washer  
18 Bolt  
39  
Washer, Large  
19 Front Hand Guard  
20 Crosshead Self-tapping Screw  
40 Epicyclic Gear  
41 Gear Plate, Inner  
NOTE: Some parts are listed and shown for illustration purposes only and are not available  
individually as replacement parts.  
PLEASE READTHE FOLLOWING CAREFULLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS  
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBU-  
TOR MAKES ANY REPRESENTATION ORWARRANTY OF ANY KINDTOTHE BUYERTHAT HE  
OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS  
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER  
AND/OR DISTRIBUTOR EXPRESSLY STATESTHAT ALL REPAIRS AND PARTS REPLACEMENTS  
SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE  
BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER  
REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING  
OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.  
SKU 44493  
Page 7  
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Assembly Drawing  
SKU 44493  
Page 8  
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