High Performance Ventilation Chain Saws 3924 E. Trent Ave.
Contents Congratulations.... CONTENTS On your purchase of the worlds finest high performance, ventilation saw. This saw has been designed to meet the rugged requirements of the fire service. To ensure maximuim performance and reliability this saw’s carburator should be set for the altitude it is intended to run at, and the R.P.M. should be set at 13,500. This can be achieved through the dealer you purchased the saw from or at any authorized Unifire dealer.
Start and Stop Cold Engine Start CHAIN BRAKE: Disengage the cain brake by pulling the hand gaurd towards the front handle. Grip the front handle with your left hand and hold the saw down by putting your right foot in the rear handle. Pull the starter handle with your right hand and pull out the starter cord slowly until the starter pawls engage. Then pull sharply. IGNITION: Move the ignition switch to start position CHOKE: Set the choke control in choke position.
Fuel Handling Gasoline This engine is ceritified to operate on unleaded gasoline. Mix (shake) the fuel mixture thoroughly before filling the saw’s fuel tank. Do not mix more than the max one months supply of fuel. Use good quaility unleaded gasoline. The lowest recommended octane rating is 87. If the saw is not used for sometime the fuel tank should be emptied and cleaned. When working at continuous high revs a higher octane is recommended. This engine is certified to operate on unleaded gasoline.
Assembly and Maintenance Mounting Guide Bar and Chain Always wear gloves when working with the chain, in order to protect your hands from injury! Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle. Hold up the tip of the bar and tighten the chain. The chain is correctly tensioned when there is no slack on the underside of the bar, but it can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the combination wrench.
Maintenance 3 Stage Air Filtration Changing a broken starter cord The air filter must be regularly cleaned from dust and dirt in order to avoid: - Carburetor malfunctions - Starting problems - Engine power reduction - Unnecessary wear on engine parts - Abnormal fuel consumption Loosen the screws, that hold the device against the crankcase and remove the starter device Clean the air filter daily or more often if the air is exceptionally dusty in the working area.
Maintenance Carburetor Low speed needle L The Unifire Pro-Saw has been designed and manufactured to specifications that reduce harmful emissions. After your unit has been run 810 tanks of fuel the engine has broken in. To ensure that your unit is at peak performance and producing the least amount of harmful emissions after break in, adjust your carburetor for optimum operating conditions. Turn the low speed needle L clockwise until the stop.
Maintenance Daily Maintenance Weekly Maintenance 1. Check the throttle trigger for smooth operation. If and binding occurs, or if engine fails to return to idle, the saw should be taken to your dealer before it is used again. Also be sure that the trigger cannot be pulled until the throttle trigger lockout is depressed. 1. Check that the AV elements are not soft or torn. 2. Clean the chain brake and check its function according to the instructions. Make sure that the chain catcher is undamaged.
Depth Guage Installation Depth Guage Installation Instructions TOOLS REQUIRED: 1/2 inch wrench (or 13mm) Loctite 272-(provided) 17/64 Drill Bit Center Punch 6. Plunge the gauge several times to check for binding. Use a spray lubrication such as WD 40 for easy sliding. 1. Remove the Bar from the powerhead. Clean bar if it has been used. 2. Mark the bar for hole positions using the template provided. For precise drilling use a center punch. 3.. Replace the bar onto the powerhead and install chain.
Depth Guage Instructions Depth Guage Instructions The depth guage is spring loaded. For a standard cut, simply push saw bar and chain into cut area, the guage will automatically slide back. When the saw is pulled out of the cut then the depth guage automatically springs forward to cover the bar and chain. 4. Once the cut has been started move saw to a 90 degree angle to achieve a precise cut at desired depth.
Unifire Pro-Saw Parts What is it? 1. Cylinder cover 2. Front Handle 3. Starter Cover 4 Chain oil tank 5. Starter Handle 6. Adjuster screw, carburetor 7. Choke Control/Start throttle lock 8. Rear handle 9. Stop switch, Ignition on/off switch 10. Fuel tank 11. Muffler 12. Bar tip sprocket 13. Saw chain 15. Saw bar 16. Bumper 17. Chain catcher. Catches chain if it jumps or breaks. 18. Clutch cover 19. Right hand guard. 20. Throttle control 21. Throttle Lock 22. Decompression valve 23. Combination spanner 24.
