Alpina PR270 User Manual

1. For Safe Operation EN 1
Dear Customer,
Firstly, we wish to thank you for having chosen our products and hope that the use of this machine will
be extremely satisfying for you and fully meet your expectations. This manual has been drawn up to
allow your to get to know your machine well and use it in safe and efficient conditions; please do not
forget that it is an integral part of the machine and keep it to hand to be consulted at all times and con-
sign it with the machine if you should sell or lend it to others.
Your new machine has been designed and manufactured to current standards and is safe and reliable
if used in full respect of the instructions contained in this manual (forecast use); any other use or failu-
re to comply with the instructions for safe use, maintenance and repair shall be considered as “improp-
er use”, cause the warranty to become null and void and relieve the Manufacturer from all responsi-
bility, with the user becoming responsible for charges for damages or personal or third party injury.
If any slight differences are found between the description herein and the machine you own, please
bear in mind that due to continual product improvement, the information contained in this manual is
subject to modification without prior notice or obligatory updating, although the essential features for
the purposes of safety and operation remain unchanged. In the event of doubt, please contact your
dealer. Enjoy your work!
This chainsaw has been espe-
cially designed for tree mainte-
nance and should therefore
only be used by trained opera-
tors when working on trees.
WARNING!
EXPLANATION OF SYMBOLS
AND SAFETY WARNINGS
1. Read, understand and follow all warnings.
2. Warning! Danger of kickback.
3. Use the chain saw with two hands.
4. Read operator's instruction book before operating
this machine.
5. Wear head, eye and ear protection.
6. Wear strong working gloves.
7. Wear boots or protective shoes with grippy soles and steel
toecaps.
8. Use appropriate protections for foot-leg and hand-arm .
9. This saw is for trained tree service operators only.
WARNING!!!
RISK OF DAMAGING HEARING
IN NORMAL CONDITIONS OF USE, THIS
MACHINE MAY INVOLVE A DAILY LEVEL
OF PERSONAL EXPOSURE TO NOISE FOR THE
OPERATOR EQUAL TO OR GREATER THAN
85 dB(A)
1. For Safe Operation ......................................................... 1
2. Explanation of Symbols on the Machine ....................... 6
3. Installing Guide Bar and Saw Chain .............................. 7
4. Fuel and Chain Oil ......................................................... 8
5. Operating the Engine ................................................... 10
6. Sawing .......................................................................... 13
7. Maintenance ................................................................. 15
8. Maintenance of Saw Chain and Guide Bar ................. 17
9. Troubleshooting Guide ................................................. 18
10. Accesories ................................................................... 18
Contents
1. For Safe Operation
Maximum noise and vibration levels PR 270 - 280
Operator ear noise pressure level
(ISO 22868) ....................................................................... db(A) 108
- Measurement uncertainty (2006/42/CE - EN 27574) .... db(A) 1,3
Measured acoustic output level (ISO 22868) ................... db(A) 108
- Measurement uncertainty (2006/42/CE - EN 27574)..... db(A) 1,6
Vibration level (ISO 22867) ................................................ m/s
2
10,8
- Measurement uncertainty (2006/42/CE - EN 12096) ..... m/s
2
1,1
TRANSLATION OF THE ORIGINAL INSTRUCTIONS (ISTRUZIONI ORIGINALI)

Alpina PR270 Specifications

General

Brand	Alpina
Model	PR270
Category	Chainsaw
Language	English

Summary

1. For Safe Operation

General Safety Warnings and Precautions

Covers essential safety rules, warnings about noise, and general operational advice.

Kickback Safety Precautions

Essential guidelines to prevent dangerous kickback incidents during chainsaw use.

Working at Height with Rope and Harness

Outlines safe working practices for tree service chainsaws at height.

Safe Work Positioning and Operation

Advises on securing work positions for two-handed use, one-handed use, starting the saw, and freeing trapped saws.

2. Explanation of Symbols on the Machine

Fuel and Oil Port Symbols

Identifies symbols related to fuel and oil filling ports on the machine.

Engine Controls and Starting Symbols

Explains symbols for ignition switch, choke, and starting modes.

Chain Brake and Adjustment Symbols

Details symbols for chain brake operation and carburetor adjustments.

3. Installing Guide Bar and Saw Chain

Guide Bar and Saw Chain Installation Process

Step-by-step instructions for fitting the guide bar and saw chain onto the power unit.

4. Fuel and Chain Oil

Fuel Handling and Mixing Procedures

Covers safe fueling, recommended fuel mix ratio, and mixing instructions.

Chain Oil Usage Guidelines

Provides information on the type of oil to use for the chain and its importance.

5. Operating the Engine

Engine Starting Procedures

Step-by-step guide for starting the engine on the ground and basic warm-up.

Starting Engine on a Tree

Specific instructions for safely starting the engine when the saw is in a tree.

Oil Supply and Carburetor Adjustment

Explains how to check oil flow and fine-tune the carburetor for optimal performance.

Chain Brake Operation and Release

Details the function of the chain brake, how it engages, and how to release it.

Stopping the Engine

Instructions on how to safely stop the engine after operation.

6. Sawing

General Sawing Safety and Techniques

Covers essential safety, proper usage, and kickback prevention before sawing.

Felling a Tree Procedure

Outlines the initial steps and considerations for safely felling a tree.

Tree Felling and Cutting Techniques

Details specific steps for felling, cutting limbs, bucking, limbing, and pruning trees.

7. Maintenance

General Maintenance Safety Precautions

Emphasizes safety measures to take before performing any maintenance tasks.

Routine Maintenance Checks

Covers cleaning of air filter, oiling port, guide bar, sprocket nose, cylinder fins, and fuel filter.

Component Specific Maintenance

Details maintenance for oil filter, spark plug, sprocket, cooling air passages, and muffler.

8. Maintenance of Saw Chain and Guide Bar

Saw Chain Sharpening and Setting

Instructions for maintaining sharp cutters and setting the correct angles and depth.

Guide Bar Wear and Maintenance

Guidance on checking for guide bar wear, reversing, and maintaining the bar rail.

9. Troubleshooting Guide

Common Starting and Performance Issues

Addresses problems like starting failure, lack of power, and rough idling with causes and remedies.

Oil Delivery Problems

Explains troubleshooting steps for when the chain oil is not being delivered correctly.

10. Accessories

Compatible Bar and Chain Combinations

Lists compatible bar and chain sizes for different machine models.