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Resumen del manual
Be careful of heated surfaces and muffler. Refer to engine manual packed with your unit for carburetor adjustment information. 10 BELT REPLACEMENT 1. Disconnect the spark plug wire from the spark plug and ground against the engine block. ''-2. Drain the gasoline from the fuel tank or place a piece of plastic under the cap to prevent leakage. 3. Tip the splitter on one side. 4. Remove four self-tapping screws from the bottom belt cover and frame. See figure 18. FIGURE 18 v 5. Using a 9/16" wrench, remove the engine pulley by removing the hex bolt and lock washer. See figure 19. Slip the pulley and belt off. NOTE Be careful not to lose the square key on the crankshaft. ^FIGURE 19 6. Loosen the three engine mounting bolts using a 1/2" wrench. See figure 20. 7. Install the new belt. 8. Slide the engine outward to tighten the new belt until there is approximately 1/2.'^. deflection. Tighten engine mounting bolts securely. FIGURE 20 OFF-SEASON STORAGE In event engine is to be stored for any length of time (30 days or more), prepare as follows: 1. Drain gasoline by tipping or by siphon hose, then run engine until remainder is used and tank and carburetor are empty. A CAUTION 2. 3. 4. Drain gasoline into container outdoors from fire or flame. Drain carburetor by running engine until it stops from lack of fuel. Protect the inside of engine for storage by removing spark plug and pouring one ounce of SAE 30 oil through spark plug hole into cylinder. Crank engine, without starting, several times to spread oil over cylinder walls. Never store outside without a waterproof cover. A CAUTION When storing any type of power equipment in an unventilated or metal storage shed, care should be taken to rust proof the equipment. Using a light oil or silicone, coat the equipment, especially springs and bearings. 11 I TROUBLE SHOOTING CHART SYMPTOM POSSIBLE CAUSE(S) SOLUTION 1. Engine fails to start A. Check 1 uel tank for gas. B. Spark plug lead wire disconnected. C. Faulty ipark plug. A. Fill tank if empty. B. Connect lead wire. C. Spark should jump gap between control electrode and side electrode. If spark does not jump, replace the spark plug. 2. Hard starting or loss of power. A. Spark p lug wire loose. B. Dirty a r cleaner. A. Connect and tighten spark plug wire. B. Clean air cleaner as described in engine manual. 3. Engine overheats A. Carburf tor not adjusted prope rly. B. Airflov/ restricted. C. Engine oil level low. A. Adjust carburetor. See engine manual. B. Remove blower housing and clean as described in the engine manual. C. Fill crankcase with the proper oil. 4 Will not split logs A. Relief valve setting incor ect. B. Pump sitting incorrect. A. Shim valve with .010 flat washer. B. Adjust pump setting. 5. Leaking cylinder A. Broken seals. B. Scored cylinder. A. Replace seals. B. Replace cylinder. NOTE: For repairs beyond the minor adjustments isted above,please contact your local service dealer. 12 Model 638 't2U2 ,t2 STAMPED PART NUMBER AND DATE CODE No Letters — HEIL — Will Require Cylinder "0"-Ring Kit 753-0369 J&2 ts2nz ’i2 STAMPED PART NUMBER AND DATE CODE Letters "AF" - AGRI-FAB - Will Require Cylinder "0"-Ring Kit 753-0368 2-1/2" DIA. CYLINDER PARTS LIST FOR MODEL 638 REF. NO. PART NO. DESCRIPTION 1 717-0804 Cylinder Ass'y- Comp. 2 753-0368 2-1/2" Cyl. Kit "0"-Ring Set (Agri-Fab) 753-0369 2-1/2" Cyl. Kit "0"-Rmg Set (Heil) I This instruction manual covers various models, and all specifications shown do not necessarily apply to your model. Specifications subject to change without notice or obligation. 14 Model 638 PARTS LIST FOR MODEL 638 LOG SPLITTER REF. NO.. PART NO. COLOR CODE DESCRIPTION NEW PART REF. NO. PART NO. COLOR CODE DESCRIPTION NEW PART 1 08118 Grip 28 736-0119 L.-Wash. 5/16" I.D.* 2 710-0152 Hex Bolt 3/8-24 x 1.00" 29 736-0159 Fl.-Wash. .341" |.D. x Lg.* .88" O.D. 3 710-0376 Hex Bolt 5/16-18 x 1.00" 30 736-0169 L.-Wash. 3/8" I.D.* Lg.* 32 737-0104 Plug 1/4 NPTF Sq. Hd. 4 710-0599 Hex Wash. Hd. TT Tap Scr. 33 737-0187 Female Adapter 1/4 1/4-20 x .50" Lg. NPTF N 5 710-0624 Hex Bolt 5/16-24 x 1.5 34 737-0161 Breather Valve 1/4 Lg.* NPTF-M 6 710-0649 Hex Wash. Hd. TT Tap 35 737-0182 Adapter 3/4 Tubing to Scr. 3/8-16 x .87" Lg. 3/4-16 M-Boss N 7 710-0938 Set Scr. 1/4-28 x .25" 36 737-0183 Adapter - or Boss to MJIC Cup 9/16-18 to 7/16-20 N 8 711-0628 Adjustment Ferrule 5/16-1 3 37 737-0184 Adapter 1/2 Tube 9/16-18 Thd. O.R. M-Boss N. 9 712-0123 Hex Nut 5/16-24 Thd.* 38 737-0185 90° Elbow Adapter 1/2" 10 712-0267 Hex Nut 5/16-18 Thd.* Tube 1/2 NPTF N 11 712-0798 Hex Nut 3/8-16 Thd.* 39 737-0186 90° Elbow - 1/2 NPTF 12 717-0803 Valve in Head Pump Ass'y. N Nipple N 13 717-0804 Cylinder Ass'y. N 40 738-0147 Shld. Scr. .498 Dia. x 14 714-0133 Sq. Key 3/16 x 1-1/2" .170" Lg. Lg. 41 738-0406 Return Stroke Stop 15 714-...