Ryobi BS903 manual

SA VE THIS MANUAL FOR FUTURE REFERENCE Y our band saw has been engineered and manufactur ed to our high standard for dependability , ease of operation, and operator safety . When properly car ed for , it will give you years of rugged, trouble-free performance. WARNING: T o r educe the risk of injury , the user must read and understand the operator?[...]

2  Introduction ..................................................................................................................................................................... 2 �  W arranty .................................................................................................................................................[...]

3 GENERAL SAFETY RULES WARNING: Read and understand all instructions. Failure to follow all instructions listed below , may result in electric shock, fire and/or serious personal injury . READ ALL INSTRUCTIONS  KN OW YOU R POW ER TO OL. R ead the oper ator ’ s manu al carefully . Lear n the applications and limitations as well as the specific [...]

4  A VOID AWKW ARD OPERA TIONS AND HAND POSITIONS where a sudden slip could cause your hand to move into the blade. AL WA YS make sure you have good balance.  ALLOW THE MOTOR TO COME UP TO FULL SPEED before starting a cut to avoid binding or stalling.  DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON AND OFF . Have defective switches r eplace[...]

5 SYMBOLS Some of the following symbols may be used on this tool. Please study them and learn their meaning. Pr oper interpretation of these symbols will allow you to operate the tool better and safer . Read The Operator’ s Manual Safety Alert No Hands Symbol SYMBOL NAME DESIGNA TION/EXPLANA TION V oltage Current Frequency (cycles per second) Pow[...]

6 SYMBOLS The following signal words and meanings ar e intended to explain the levels of risk associated with this product. DANGER: Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury . WARNING: Indicates a potentially hazar dous situation, which, if not avoided, could result in death or seriou[...]

7 ELECTRICAL SPEED AND WIRING The no-load speed of this tool is appr oximately 3,000 sfpm. This speed is not constant and decreases under a load or with lower voltage. For voltage, the wiring in a shop is as important as the motor’ s horsepower rating. A line intended only for lights cannot properly carry a power tool motor . Wire that is heavy e[...]

8 GLOSSAR Y OF TERMS Non-Through Cuts Any cutting operation where the blade does not extend completely through the thickness of the workpiece. Pilot Hole (drill presses) A small hole drilled in a workpiece that serves as a guide for drilling lar ge holes accurately . Push Blocks (for jointer planers) Device used to feed the workpiece over the joint[...]

9 FEA TURES PRODUCT SPECIFICA TIONS Blade Width ................................................ 1/8 in. to 3/8 in. Blade Length .......................................... 59-1/4 - 59-1/2 in. Frame to Blade Capacity .............................................. 9 in. Cutting Thickness Capacity ................................... 3-1/2 in. T able S[...]

10 FEA TURES SAW BLADE Saw comes with a standard 1/4 in. blade. SAW T ABLE WITH THROA T PLA TE Y our band saw has a saw table with tilt control for maximum accuracy . The thr oat plate, installed in the saw table at the factory , allows for blade clearance. SCALE AND SCALE INDICA TOR The scale and scale indicator show the angle or degr ee the saw t[...]

11 TOOLS NEEDED The following tools (not included) are needed for making adjustments or installing the blade: Fig. 3 PHILLIPS SCREWDRIVER SMALL COMBINA TION SQUARE LOOSE P AR TS MITER GAUGE HEX KEY , 2.5 mm SA W T ABLE Fig. 4 FLA T HEAD SCREW (3) WING SCREW WORKLIGHT Hex Key , 2.5 mm ........................................................... 1 Mit[...]

12 ASSEMBL Y HOLES IN SA W BASE Fig. 5 UNP ACKING This product r equires ass embly .  Car efully r emove the tool and any accessories from the box. Place it on a level work surface. NOTE: This tool is heavy . T o avoid back injury , lift with your legs, not your back, and get help when needed.  Inspect the tool carefully to make sure no break[...]

13 ASSEMBL Y If lag bolts are used, make sure they are long enough to go through holes in the saw base and material the saw is being mounted to. If machine bolts are being used, make sure bolts are long enough to go thr ough holes in the saw base, the material being mounted to, and the lock washers and hex nuts. NOTE: It may be necessary to counter[...]

14 ASSEMBL Y SQUARING THE SAW T ABLE TO THE BLADE See Figure 8.  T ur n the lock knob counterclockwise to unlock the blade guide assembly . T urning the blade guide knob clockw ise, raise the blade guide assembly as far as it will go. T urn the lock knob clockwise to retighten.  Pla ce a sma ll combi natio n squar e on the saw tabl e besid e [...]

15 ASSEMBL Y TRACKING THE BLADE See Figure 10. NOTE: Adjust blade tension properly before making tracking adjustments. Check that the blade guides are not interfering with the blade. T o Adjust:  Open the front cover by releasing the upper and lower latches. W atch the blade’ s position on the upper tir e through the tracking view window as, b[...]

16 OPERA TION WARNING: Do not allow familiarity with tools to make you care- less. Remember that a careless fraction of a second is sufficient to inflict serious injury . WARNING: Always wear safety goggles or safety glasses with side shields when operating power tools. Failure to do so could result in objects being thr own into your eyes resulting[...]

17 OPERA TION SCROLL CUTTING For general type scroll cutting, follow the patter n lines by pushing and turning the workpiece at the same time. Do not try to turn the workpiece while engaged in the blade without pushing it – the workpiece could bind or twist the blade. REMOVING JAMMED MA TERIAL Never remove jammed cutoff pieces until the blade has[...]

18 OPERA TION TIL TING THE T ABLE See Figure 13.  Loosen the table lock knob slightly .  T u rn the a ngle a djustme nt kno b, tilt ing th e saw table toward the fr ont of the saw housing until it reaches the desired angle.  Using the scale indicator , check angle markings.  Retighten the table lock knob to hold saw table securely in pl[...]

19 ADJUSTMENTS WARNING: Before performing any adjustment, make sure the tool is unplugged fr om the power supply . Failure to heed this warning could result in serious personal injury . INST ALLING AND ADJUSTING THE BLADE See Figures 16 and 17.  Loosen and remove the wing nut and table aligning bolt from the saw table.  Open the front cover b[...]

20 ADJUSTMENTS Fig. 19 ADJUSTING BLADE GUIDE ASSEMBL Y See Figures 18 and 19. T o prevent the blade from twisting or breaking, the blade guide assembly should always be set approximately 1/8 in. (3 mm) above the workpiece.  T ur n the lock knob counterclockwise to unlock the blade guide assembly .  As a guide, use a scrap piece of the same wo[...]

21 ADJUSTMENTS ADJ USTI NG BLAD E GUIDE SUPPOR T , THRUS T BEARINGS, AND BLADE GUIDE BEARINGS See Figures 20 - 22. NOTE: Tighten the lock knob and r efer to “Adjusting Blade T ension” and “T racking the Blade” procedures explained in the ASSEMBL Y section of this operator’ s manual prior to making adjustments. Fine tuning of the bearings [...]

22 MAINTENANCE ADJUSTMENTS T o Adjust Blade Guide Bearings: The blade guide bearings help keep the blade fr om twisting and binding. The blade can be ruined if the blade teeth hit the bearings while using the band saw .  Remove the blade guard by loosening the two phillips screws.  Using a 2.5 mm hex key , loosen the two blade guide scr ews t[...]

23 MAINTENANCE LOWER WHEEL WHEEL SHAFT MOTOR PULLEY Fig. 25 DRIVE BEL T Fig. 24 LOWER WHEEL BRUSH Fig. 23 TIRE SCREW  Remove the nut and washer from the middle of the saw housing. See Figure 24.  Pull the lower wheel away from the saw housing.  Remove the worn drive belt.  Place new drive belt on the pulley . As you slide the wheel shaf[...]

24 TROUBLESHOOTING PROBLEM CAUSE SOLUTION Motor will not run. 1. Problem with on/of f switch or 1. Have worn parts replaced before power cord. using band saw again. 2. Motor defective. 2. Do not attempt any repair . Have tool repair ed by a qualified service technician. Blade does not run in the approxi- 1. Not tracking properly . 1. Adjust trackin[...]

25 NOTES[...]

ONE WORLD TECHNOLOGIES, INC. 1428 Pearman Dairy Road, Anderson, SC 29625 Phone 1-800-525-2579 www .ryobitools.com OPERA TOR’S MANUAL 9 in. (229 mm) BAND SA W BS903 WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer , birth defects or other reproductiv[...]