Princess auto EHS350A Guide

Portable Cut-off Saw
Model: EHS350A
Operation/Parts Manual
WARNING: For safety and efficient operation, always follow the instructions in this manual

Introduction
Thank you for purchasing our cutoff saw Model: EHS350A
This Manual contains operating and safety instructions for your Model EHS350A
cut-off saw.
To receive maximum performance and satisfaction from your cut-off saw model EHS350A,
it is important that you read and understand the maintenance and safety manual before
operating the saw. Contact your dealer or the distributor in your area if you do not
understand any of the instructions in this Manual.

Because the EHS350A operates at high speed, special safety precautions must be
observed before operating the saw. Careless or improper use could cause serious or
even fatal injury.
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Table of Contents
Main parts of EHS350A and their functions………………………………………5- 9
Safety precautions…………………………………………………………………..10- 20
Specifications…………………………………………………………………………21- 22
Operation guide to EHS350A cut-off saw…………………………………………23- 32
1. Before starting……………………………………………………………………..23 - 26
2. Starting……………………………………………………………………………..27- 29
3. Operation……………………………………………………………………………30
4. Emergency Stopping……………………………………………………………….31
5. Notes on operation…………………………………………………………………31- 32
Adjustment of EHS350A cut-off saw………………………………………………..32- 34
1. Adjusting V-belt tension……………………………………………………………32
2. Adjusting carburetor………………………………………………………………..32- 34
3. Adjusting blade guard………………………………………………………………34
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Maintenance & repair of EHS350A cut-off saw…………………………………..35- 41
1. Cleaning and maintenance of air filter………………………………………….35 - 36
2. Maintenance of spark plug……………………………………………………….36- 37
3. Replacing starter rope……………………………………………………………37 - 38
4. Replacing pawl…………………………………………………………………….39
5. Maintenance chart…………………………………………………………………40-41
Storing EHS350A cut-off saw……………………………………………………….42
Exploded parts views and parts lists…………………………………………….43- 58
1. Crankshaft Housing Assembly…………………………………………………..43-44
2. Crankshaft & Piston Assembly…………………………………………………..45-46
3. Cylinder & Muffler Assembly……………………………………………………..47-48
4. Fuel Tank & Carburetor…………………………………………………………..49-50
5. Handle & Main Cover Assembly………………………………………………….51-52
6. Air Filter Assembly…………………………………………………………………53-54
7. Cutter Assembly……………………………………………………………………55-56
8. Transmission Box Assembly……………………………………………………57-58
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Main parts of EHS350A and their functions
This product is composed of two main sections: a gasoline powered 2-stroke engine and a
driving/cutting system. When engine speed is up to 3800 RPM, the cutting blade, driven by
the engine via belt transmission system, begins to rotate at high speed, and is ready for
cutting work.
Showed below are the main parts of the EHS350A cut-off saw and their corresponding
function descriptions (Ref. Fig 1):
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1. Blade
2. Flanges
3. Hexagon Bolt
4. Blade Guard
5. Front Handle
6. Spark Plug Cover
7. Kill Switch
8. Full Throttle Lock Button
9. Throttle Trigger
10. Rear Handle
11. Filter Cover Lock Lever
12. Air Filter
13. Choke Lever
14. Starter Grip
15. Fuel Tank Cap
16. Decompression Valve
17. Water Attachment
18. Tensioning Nut
19.Muffler
Fig. 1 20. Adjusting Lever of Blade Guard
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1. Blade:
Diamond or abrasive blades. Depending on the material to be cut, these blades are
made of different materials. Be sure to choose right blade for the material being cut.
The maximum diameter of the blade for the saw is 14 inch. And the operating speed of
the blade should be above or equal to 5300 RPM.
2. Flanges:
Clamp and support the diamond or abrasive blade.
3. Hexagon Bolt:
Tightens blade flange.
4. Blade Guard:
Safety guard, directs sparks and dust away from operator.
5. Front Handle:
Used to securely hold the saw while under operation.
6. Spark Plug Cover:
A removable cover for access to the spark plug
7. Kill Switch:
Engine stops when this switch is pressed and held.
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8. Full throttle lock button:
Locks the throttle in full open position by pressing this button while the trigger is fully
depressed. Pressing and releasing the trigger returns the throttle to idle position.
9. Throttle trigger:
Controls engine speed by manipulating the throttle. Pulling the trigger backward opens
the throttle and the engine accelerates. Releasing the trigger slows down the engine.
10. Rear Handle:
Used to securely hold the saw while under operation.
11. Filter Cover Lock lever:
Locks the air filter cover. Pull back on the lever to open the filter cover.
12. Air Filter:
Filters dirt and debris from entering carburetor.
13. Choke Lever:
Turning this lever counter clockwise closes the carburetor. Used to prime engine
(cold starting). Turn clockwise for normal operation.
14. Starter Grip:
Pull to start engine.
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15. Fuel Tank Cap:
Open this cap for filling the fuel. Close the tank for starting and operation.
16. Decompression Valve:
Press down on this valve to make starting easier. When air pressure in the engine
reaches a preset value, it automatically closes.
17. Water Attachment:
Feeds water to both sides of diamond blade. Connect to water supply for wet cutting.
18. Tensioning Nut:
For V-belt tension adjustment. Turn this nut clockwise to loosen the V-belt, turn the nut
counter clockwise to tension the V-belt
19. Muffler:
Reduces both noise and emissions.
20. Blade Guard Adjusting Lever :
Allows adjustment of blade guard to direct dust away from operator.
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