OWNER’S MANUAL Model COS18 Cut-Off Saw Left-Hand model shown, with 8' and 4' optional roller tables WMH TOOL GROUP Industrial Machinery Division 427 Sanford Road LaVergne, TN 37086 Ph: 800-248-0144 ▪ Fax: 800-274-6840 E-mail: powermatic@wmhtoolgroup.com www.wmhtoolgroup.com M-0460277 10/03 Rev.
This manual has been prepared for the owner and operators of a Powermatic Model COS18 Cut-Off Saw. Its purpose, aside from proper machine operation, is to promote safety through the use of accepted correct operating and maintenance procedures. Completely read the safety and maintenance instructions before operating or servicing the machine. To obtain maximum life and efficiency from your saw, and to aid in using the machine safely, read this manual thoroughly and follow all instructions carefully.
TABLE OF CONTENTS Safety Rules............................................................................................................................................... 4-5 Safety Decals ................................................................................................................................................ 6 Specifications ................................................................................................................................................ 7 Features ..
! SAFETY RULES As with all machines, there is a certain amount of hazard involved with the use of this cut-off saw. Use the machine with the respect and caution demanded where safety precautions are concerned. When normal safety precautions are overlooked or ignored, personal injury to the operator can result. Read, understand and follow the safety and operating instructions found in this manual. Know the limitations and hazards associated with this machine. Electrical grounding.
Job completion. If the operator leaves the machine area for any reason, the cut-off saw should be turned "off" and the blade should come to a complete stop before his departure. In addition, if the operation is complete, he should clean the saw and the work area. NEVER clean the saw with power "on" and never use the hands to clear sawdust and debris; use a brush. Replacement parts.
! SAFETY Familiarize yourself with the location and content of these decals on your machine.
SPECIFICATIONS: COS18 Cut-Off Saw Stock number (COS18L).....................................................................................................................1791294 Stock number (COS18R) ....................................................................................................................1791289 Motor............................................................................................................................. 10HP, 3Ph, 230/460V Blade size.........................
FEATURES: COS18 Cut-Off Saw FIGURE 2 8
RECEIVING Open shipping crate and check for shipping damage. Report any damage immediately to your distributor and shipping agent. Before using the cut-off saw, read the instruction manual thoroughly for assembly, maintenance and safety instructions. Contents of crate: 1 Cut-off saw 1 Handwheel 1 Toolbox containing: 1 hex wrench set 1 socket wrench 1 open-end wrench set 1 Manual 1 Warranty card INSTALLATION & ASSEMBLY 1.
ELECTRICAL CONNECTIONS ! WARNING: Electrical connections must be made by a qualified electrician in compliance will all relevant codes. The machine must be properly grounded to help prevent electrical shock and possible death. A power plug is not provided with the COS18. You may either connect one, or "hard-wire" the machine directly to your electrical panel provided there is a disconnect near the machine. Consult electrical schematic on page 34 for further clarification of wiring setup.
DUST COLLECTION Powermatic recommends the use of a dust collection system with this cut-off saw. The collector should have sufficient capacity (600 CFM) for this size machine. Mount the dust collector via a 4" hose to the outlet on the blade access door. OPERATING CONTROLS Control buttons are in two locations on the saw, and are shown in Figure 5. A main start and stop button is located at the back of the table top. An emergency stop button is also found on the front.
7. ! Re-install clear panel and close blade access door, fastening it securely. NOTE: A sensor switch on the door will automatically shut down the saw if the door is opened while the blade is moving. WARNING: Do not reconnect power, air or electric, without internal clear panel in place and door securely fastened with screws. AIR SUPPLY The correct air pressure for the COS18 saw is 70 PSI. Attach the hose from your air source to the machine's air valve as shown in Figure 9.
To mount roller tables to saw: 1. Mount an angle bracket to the pre-drilled holes in the side of the saw cabinet with four M8 x 20 hex cap screws and four M8 flat washers (Fig. 10). Do not fully tighten yet. 2. Place the roller table upside down on a flat surface and attach the leg assemblies with four M8 x 25 hex cap screws, eight M8 flat washers, and four M8 hex nuts per leg assembly (Fig. 11). 3. Screw an adjustable foot pad into each leg as shown in Figure 12. 4.
8-FOOT TABLE GUIDE 1. The 8-foot table comes with a guide and scale. The guide should be mounted to the edge of the table with six M8 x 27 square head bolts, six M8 flat washers and six M8 hex nuts (Fig. 13). 2. Attach the three stops to the 8-foot table guide (Fig. 13). These stops can be slid to any point along the guide and secured by tightening the lock levers. LEVELING & ALIGNING ROLLER TABLES Each roller table must now be leveled with the main saw table and aligned with the fence.
5. Now place the board flush against the fence and against the rail of the roller table(s). If necessary, shift a roller table horizontally to bring it in line with the fence. 6. When final adjustments have been made and re-checked on the roller tables, tighten all screws/nuts connecting the roller tables to the angle brackets. ! CAUTION: Never adjust the outfeed table level higher than the level of the machine table surface.
BELT REPLACEMENT 1. Release tension on the v-belt and remove old belt. 2. Make sure the new belt is properly situated into the v-grooves of the pulley. 3. Tension new belt. OPERATION ! WARNING: Do not place your hands close to the guard/clamp at any time during operations. All guards must be installed before using the machine. 1. Start the motor and the air supply. 2. Adjust height of clamp so it clears the workpiece by about 1/8". 3.
OPTIONAL ACCESSORIES - COS18 Cut-Off Saw Part No. Description 6827037 ............. 8' Roller Table 6827038 ............. 4' RollerTable 6080157 ............. Blade, 18" 120T, 1" Bore 6080158 .............
PARTS LIST: Table & Motor Assembly (COS18 Cut-Off Saw) Index No. Part No. Description Size Qty. 1 ......... COS18-101L...........Casting Table (Left Hand)........................... .......................................... 1 1 ......... COS18-101R ..........Casting Table (Right Hand) ........................ .......................................... 1 2 ......... TS-1505051............Socket Head Cap Screw............................. M10x35.............................. 4 3 ......... TS-2361101....
PARTS LIST: Table & Motor Assembly (COS18 Cut-Off Saw) continued Index No. Part No. Description Size Qty. 43 ........TS-1540021 ........... Hex Nut ..................................................... M4x0.7P.............................3 44 ........TS-1491101 ........... Hex Cap Screw.......................................... M10x60 ..............................4 45 ........TS-1550071 ........... Flat Washer ............................................... M10 ....................................
Table & Motor Assembly – Left Hand (COS18 Cut-Off Saw) 20
Table & Motor Assembly – Right Hand (COS18 Cut-Off Saw) 21
PARTS LIST: Stand Assembly (COS18 Cut-Off Saw) Index No. Part No. Description Size Qty. 1 ......... COS18-201L...........Stand (Left Hand) ....................................... ....................................... 1 1 ......... COS18-201R ..........Stand (Right Hand)..................................... ....................................... 1 2 ......... TS-1481041............Hex Cap Screw .......................................... M5x16........................... 12 3 ......... TS-1550031......
Stand Assembly – Left Hand (COS18 Cut-Off Saw) 23
Stand Assembly – Right Hand (COS18 Cut-Off Saw) 24
PARTS LIST: Air Control Assembly (COS18 Cut-Off Saw) Index No. Part No. Description Size Qty. 1..........COS18-301 .................Toggle Joint .......................................... ...........................................1 2..........COS18-302 .................Shaft ..................................................... ...........................................2 3..........COS18-303 .................Cotter Pin.............................................. SSP-12..............................
Air Control Assembly – Left Hand (COS18 Cut-Off Saw) 26
Air Control Assembly – Right Hand (COS18 Cut-Off Saw) 27
PARTS LIST: Safety Guard Assembly (COS18 Cut-Off Saw) Index No. Part No. Description Size Qty. 1 ......... COS18-401 ................ Special Fixed Pin, guider ....................... .......................................... 1 2 ......... TS-0561051................ Hex Nut ................................................. 1/2”-13 ............................... 1 3 ......... COS18-403 ................ Rubber Cushion..................................... .......................................... 1 4 .
PARTS LIST: Safety Guard Assembly (COS18 Cut-Off Saw) continued Index No. Part No. Description Size Qty. 53 ........TS-1540041 ................Hex Nut................................................. M6x1P................................4 54 ........COS18-454L ...............Pneumatic Guard (Left Hand)................ ...........................................1 54 ........COS18-454R ..............Pneumatic Guard (Right Hand) ............. ...........................................1 55 ........
Safety Guard Assembly – Left Hand (COS18 Cut-Off Saw) 30
Safety Guard Assembly – Right Hand (COS18 Cut-Off Saw) 31
PARTS LIST: 4' Roller Table Assembly (COS18 Cut-Off Saw) #6827038 Optional Accessory Index No. Part No. Description Size Qty. 1 ......... COS18-501 ..............Roller Table ............................................ 4’........................................ 1 2 ......... COS18-502 ..............Roller ...................................................... .......................................... 5 3 ......... COS18-503 ..............Split Pin .................................................. ..
4' Roller Table Assembly (COS18 Cut-Off Saw) #6827038 Optional Accessory 33
PARTS LIST: 8' Roller Table Assembly (COS18 Cut-Off Saw) #6827037 Optional Accessory Index No. Part No. Description Size Qty. 1 ......... COS18-601 ..................Guide Rail ............................................ 8’........................................ 1 2 ......... COS18-602 ..................Scale.................................................... 2400mm............................. 1 3 ......... COS18-603 ..................Pan Head Machine Screw .................... M5x5................
8' Roller Table Assembly (COS18 Cut-Off Saw) #6827037 Optional Accessory 35
PARTS LIST: Pneumatic Diagram (COS18 Cut-Off Saw) Index No. Part No. Description Size 1 ......... COS18-211 ................ Emergency Button ................................. 2 ......... COS18-140 ................ Tube Fittings (L type)............................. 1/8"x 6 3 ......... COS18-215 ................ Tube Fittings (T type)............................. 1/8"x 6 4 ......... COS18-214 ................ Air Pressure Start Button ....................... 5 ......... COS18-215 ................
PARTS LIST: Pneumatic Diagram (COS18 Cut-Off Saw) continued Index No. Part No. Description Size 50 ........COS18-235 .................Tube Fittings (L type) ............................ 3/8”x 51 ........COS18-234 .................Tube Fittings (L type) ............................ 3/8”x 52 ........COS18-141 .................Silencer................................................. 1/8" 53 ........COS18-140 .................Tube Fittings (L type) ............................ 1/8"x 54 ........COS18-140 ..
ELECTRICAL SCHEMATIC (COS18 Cut-Off Saw) 38
Preventive Maintenance Checklist for Model COS18 Cut-Off Saw [ ] Work area around machine marked off clearly. [ ] Non-skid floor strips in area where operator normally stands. [ ] Inspect entire machine for loose bolts, nuts, screws. Tighten and replace as necessary. [ ] Clean table area, removing sawdust and chips with a soft bristle brush. Remove gum and pitch with oven cleaner. [ ] Lubricate appropriate places with a good grade non-hardening grease. [ ] Clean table and fence surface.
WMH Tool Group 427 Sanford Road LaVergne, TN 37086 Phone:(800) 248-0144 Fax: (800) 274-6840 E-mail: powermatic@wmhtoolgroup.com Website: www.wmhtoolgroup.
