Husqvarna 445 EPA II, 445e EPA II, 450e EPA II manual Bar and chain combinations

Page 37

TECHNICAL DATA

Recommended original and replacement bar and chain combinations

Following is a list of recommended cutting equipment for the Husqvarna chain saw models 445, 445e and 450e. The combinations of power head, bar and chain have been tested and found to be in accordance with the kickback and vibration requirements of ANSI B 175.1–2000.

The guide bar nose radius is determined by either the maximum number of teeth in the nose sprocket or the corresponding maximum nose radius of a solid bar.

The following list is the chain saw manufacturers recommendations. There may be other combinations available, which will also achieve kickback reduction.

As we are listing the maximum guide bar nose radius, you may use a guide bar with smaller nose radius than in our list. For guide bars of the same length, all sprocket-nose guide bars of the same pitch and having the same number of sprocket teeth may be considered to have equivalent kickback energy. A hard nose bar having the same length and nose radius as a sprocket-nose bar may be considered to have equivalent or less kickback energy than the sprocket-nose bar.

Bar and chain combinations

Chain saw models Husqvarna 445, 445e and 450e met the kickback performance requirements of ANSI B 175.1-2000 when tested with the combinations of bars and saw chains listed below. The saw chain Husqvarna H30 is also classified as a low kickback saw chain since it met the requirements for low kickback saw chain outlined in ANSI B 175.1-2000. We recommend to use only the listed combinations of bars and chains for chain saw models Husqvarna 445, 445e and 450e. Other chain saw models may not meet the kickback requirements when equipped with the listed bar and chain combinations.

 

 

Bar

 

 

Chain

 

 

 

 

 

 

 

Length, inch

Pitch, inch

Thickness of drive links,

Max. nose radius

Type

 

Drive link count

 

 

inch/mm

 

 

 

 

13

0,325

 

10T

 

 

56

 

 

 

 

 

 

 

15

0,325

 

10T

 

 

64

 

 

 

 

 

 

 

16

0,325

1,3

10T

Husqvarna H30

 

66

 

 

 

 

 

 

 

18

0,325

 

10T

 

 

72

 

 

 

 

 

 

 

20

0,325

 

10T

 

 

78

 

 

 

 

 

 

 

13

0,325

 

10T

 

 

56

 

 

 

 

 

 

 

15

0,325

 

10T

Husqvarna H21/

 

64

 

 

 

 

 

 

16

0,325

1,5

10T

 

66

Husqvarna H25

 

 

 

 

 

 

 

18

0,325

 

10T

 

72

 

 

 

 

 

 

 

 

 

 

20

0,325

 

12T

 

 

78

 

 

 

 

 

 

 

Note: For the saw chains above (if available) you are free to choose between 0,050" or 0,058" gauge drive links for the corresponding bar, see the table below.

0,050"/1,3 mm

H30

H22

H23

 

 

 

 

0,058"/1,5 mm

-

H25

H21

 

 

 

 

Saw chain filing and file gauges

English – 37

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Contents English EPA II 445e EPA 450e EPASymbols on the machine KEY to SymbolsSymbols in the operator’s manual Contents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Personal protective equipment Machine′s safety equipmentChain brake and front hand guard General Safety Precautions Chain catcher Throttle lockoutRight hand guard Vibration damping systemCutting equipment Stop switchMuffler General rulesCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge settingSharpening cutting teeth General advice on adjusting depth gauge settingTensioning the chain Adjustment of depth gauge setting445 445e, 450eChain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubricationNeedle bearing lubrication Chain drive sprocketChecking wear on cutting equipment Fitting the bar and chain Assembly445 445e, 450eAssembly Fuel Fuel HandlingFueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingCold engine Warm engineStopping Working Techniques Basic safety rulesBefore use General working instructionsGeneral rules General Basic cutting techniqueTerms LimbingSafe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreatDirectional cuts FellingWhat is kickback? How to avoid kickbackFreeing a tree that has fallen badly Cutting the trunk into logs Carburetor adjustment MaintenanceGeneral Checking the brake trigger Checking the inertia brake releaseMuffler Replacing the starter cord StarterTensioning the recoil spring Replacing the return and drive springsSpark plug Air filterLubricating the bar tip sprocket Needle bearing lubricationTemperature -5C 23F or colder Air Injection centrifugal cleaningCooling system Winter useDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinationsYour Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw users American Standard Safety PrecautionsKickback safety precautions Other safety precautions1150341-95 ´z+RB3¶55¨ ´z+RB3¶55¨

445 EPA II, 445e EPA II, 450e EPA II specifications

Husqvarna is a name synonymous with power and durability, especially when it comes to its line of chainsaws like the Husqvarna 445 EPA II, 445e EPA II, and 450e EPA II. These models combine advanced technology and ergonomic design to fulfill the needs of both professional users and homeowners.

The Husqvarna 445 EPA II chainsaw is designed for versatility and ease of use. It boasts a 45.7cc engine, providing a balance of power and weight ideal for various cutting tasks. The chainsaw features Husqvarna’s X-Torq engine technology, which reduces emissions and improves fuel efficiency. This means less downtime for refueling and a smaller ecological footprint, making it environmentally friendly. Additionally, the LowVib system minimizes vibration, which translates to reduced user fatigue over long periods of use.

The 445e EPA II takes similar principles and enhances them with increased efficiency and usability. This model includes the Air Injection system, which helps filter out larger dust and debris particles before reaching the air filter, ensuring consistent performance and a longer lifespan for the machine. Its lightweight design makes it easier to maneuver while the front handle is ergonomically shaped for a secure grip. The easy-start feature allows users to get going quickly with minimal effort.

Moving up the line, the Husqvarna 450e EPA II offers more power, featuring a slightly larger engine and an improved cutting capacity. This model is perfect for heavy-duty tasks, from felling trees to cutting firewood. Like its predecessors, it employs X-Torq engine technology and also includes the Quick Release Air Filter, making maintenance easier and faster. The robust design and advanced security features—such as the inertia-activated chain brake—ensure safe operation even under challenging conditions.

Overall, the Husqvarna 445 EPA II, 445e EPA II, and 450e EPA II chainsaws represent a commitment to safety, efficiency, and user comfort. The integration of modern technological features, coupled with Husqvarna's reputation for quality workmanship, makes these chainsaws ideal choices for anyone looking to tackle a range of outdoor cutting applications with confidence.
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