6-20 SP/16-20 PT POWERTEK Model 16-20 P/16-24 P/16-20 SP/16-31SP Stump Grinders Operation & Maintenance Manual PowerTek Inc. P.O. Box 3 Lebanon, In.
TABLE OF CONTENTS POWERTEK TABLE OF CONTENTS WARNINGS SAFETY...........…...............................................……………………………….2-3 HOW TO USE YOUR STUMPER...........………..........................………....………………….4 WORK ZONE............................……………….……………………………….………………..5 INITIAL INSPECTION...........................................................………………………………….6 TRANSPORTATION & SET-UP......................………….………………………..................6-7 OPERATION............................................
WARNINGS POWERTEK ! WARNING WARNING TO PURCHASERS OF INTERNAL COMBUSTION ENGINE EQUIPPED MACHINERY OR DEVICES IN THE STATE OF CALIFORNIA: The equipment that you have purchased does not have a spark arrester muffler. If this equipment is to be used on any forest or brush covered land or grass covered un-improved land in the State of California, the law requires that a spark arrester muffler be installed and be in effective working order.
SAFETY POWERTEK 1. Read the entire owner's manual carefully before operating the stump grinder. Also, read the entire Engine Operator's Handbook. Familiarize yourself with the, proper use of the Stumper. Know the controls and how to stop quickly. 2. Do not allow children to operate the stump grinder. Do not allow adults to operate the stump grinder without proper instruction- Do, not allow anyone to operate the stump grinder who is not acquainted with the Safety Instructions. 3.
STUMP GRINDER USAGE POWERTEK BEFORE YOU CUT: Before you start to grind the stump, remove all debris-dirt, rocks, metal, and loose woodfrom around the area of the stump before the first cut. Be sure to remove any debris that may also be embedded in the tree stump itself. Debris can wear or damage the cutting teeth and can be a safety hazard. If the teeth meet these foreign objects, the stump cutter can propel these objects great distances.
WORK ZONE POWERTEK ! WARNING When operating grinder do not allow anyone to be in the danger zone while stump grinder is running or serious injury or death may occur.
INITIAL INSPECTION POWERTEK INSPECTION Upon receiving your stump grinder, inspect and report any shipping damage to the carrier immediately. PowerTek is not responsible for damage during transportation. TIRES Inflation pressure may change with temperature and or altitude. Check and adjust tire pressure to the tire manufacturer's recommended tire pressure as marked on the tire of the stump grinder. BATTERY As a safety precaution, the positive cable has been disconnected from the battery.
TRANSPORTATION & SET-UP (Cont.) POWERTEK Check the hydraulic oil level. See the Maintenance Instructions for checking the hydraulic oil level. Gas Tank Vent. When operating the stump grinder, make sure the gas tank vent is open. (It is threaded vent.) If the vent is not open the stump grinder will not run properly. Close Vent when transporting the stump grinder or re-fueling the gas tank (Fig. 1). (Fig. 1) OPERATION POWERTEK STARTING (Fig. 2 & 3) 1. 2. 3. 4. Turn the electric clutch switch off.
OPERATION POWERTEK GRINDING STUMPS 1. Start the engine according to instructions 2. Use the throttle to gradually bring the RPM’s up to full speed. 3. To move the stump grinder, gradually push the drive handle forward. Full handle forward is walking speed. Pull back on the drive handle to travel in reverse. 4. Position the cutter wheel over the front edge of the stump and set the brake. You may need to adjust the handle position for better leverage depending on the height of the stump. 5.
OPERATION POWERTEK DIRECTIONAL CONTROL (SP) The drive system consists of a hydrostatic transmission and differential axle assembly. The hydrostatic control lever at the handle bar, controls forward and reverse, and automatically returns to neutral or stop when released. Always 'feather" the finger control lever-easing it into the direction desired. Pushing the control lever forward propels the grinder forward, pulling the control lever back reverses the grinder (Fig. 4).
OPERATION POWERTEK BY PASS CONTROL (SP) The hydrostatic also has a 'by-pass" control which enables the operator to manually move the machine when desired. This control is located at the rear of the main frame-lower left-hand side and is clearly identified. To put the grinder in a "free-wheeling mode" rotate the bypass handle up until it locks in place. To return it to powered travel, lower the bypass handle to original position. See Fig. 5.
MAINTENANCE POWERTEK ENGINE Follow the instructions in the Engine Operators Manual for all maintenance of the engine such as checking the oil, cleaning air filters, etc. FUEL Use standard unleaded gasoline in the stump grinder engine. BELTS Check the condition and tension of the drive belts before each operation. When properly tensioned, the belts should give a 3/8" deflection at the center span under approx. 15 lbs. of pressure.
MAINTENANCE POWERTEK SHARPENING CUTTERS The cutters should be sharpened frequently for higher performance and a longer life. It is also easier to grind them if they are ground often. *You will need a carbide-grinding wheel (green wheel) to sharpen them. Use a coarse grinding wheel to grind the steel shank. Be sure to maintain the back grind of 15 degrees (approximately). The cutters must be replaced when the tooth has been sharpened so that 1/4" (approximately) of the carbide is left. (Fig.
MAINTENANCE POWERTEK REPLACING CUTTERS (Fig. 9) Remember before you replace any cutters you must turn the engine off, wait for moving parts to stop, remove the key from the ignition and remove wires from spark plugs. 1. Put the handle in the transport position and tilt the Stumper all the way back until it rests firmly on the ground. 2. To make cutter replacement easier, you can slide tensioner wrench handle through the hole in the cutter guard and cutter wheel.
MAINTENANCE POWERTEK HYDRAULIC OIL Use- SAE 2OW Hydraulic Oil - In hydraulic Pump (16267) only. You will need to check the hydraulic oil level in both the transmission and the gear reducer. To check the transmission read the level mark located on the bottom of the fill cup. Use SAE 2OW hydraulic oil to fill the hydrostatic transmission. To check the gear reducer (16268) you will need to get, underneath the stump grinder.
78 143 31 32 58 5 57 78 28 7-18-07 47 77 125 124 47 110 55 52 123 139 121 141 3 120 2 27 56 6 142 60 93 135 136 132 137 138 140 87 101 88 102 49 96 109 59 50 139 61 4 71 104 105 7 51 70 94 15 74 79 17 33 34 8 134 111 46 30 1 103 63 83 84 69 68 85 91 18 19 73 74 80 95 66 14 65 48 44 90 16 62 21 25 26 64 96 20 92 11 12 54 89 75 73 97 98 43 86 53 100 36 40 35 10 29 93 108 45 99 82 41 25 26 131 129 67 132 66 76 69 106
PARTS LIST 16/20 SP Key 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 Part No.
PARTS BREAKDOWN 16/20 P 17 POWERTEK
PARTS LIST 16/20 P Key 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 Part No.
ELECTRICAL SCHEMATICS POWERTEK 20HP Kohler UE BL UE BL SP TO LICE EN IN GI TO NE B SP KE LUE ON LICE YS W SO IN WI IRE LE TO TC NO BL H ID U E WI RE WRAP RED LEAD AROUND PLUG WIRE CLUTCH N EE GR BL AC K BL K AC ON BLUE YELLOW N BLUE OFF HOUR-METER W OW OW ELLO X P U LL YE TO Y2V A 1 T ( E C NE NN GI CON EN O WHSPL ITE ICE WH ON INT ITE ENGO IN E ) ER OPERATOR PRESENCE KILL SWITCH GR CLUTCH SWITCH N EE WH ITE 24HP Honda BL UE BL UE TO ST AR SP TE L RS WI ICE OL RE IN ON ON T O OI SO
WARRANTY POWERTEK WARRANTY INFORMATION Each new product is warranted against manufacturing defects in workmanship and/or materials under normal use and service for a period of 12 months from the date of delivery of the product to the original purchaser. PowerTek, Inc.'s obligation under this warranty shall be limited to the replacement to the original purchaser of any part which, as delivered to the original purchaser, and upon PowerTek, Inc.'s examination, is shown to PowerTek, Inc.
WARRANTY INFORMATION POWERTEK 4. All parts shall be retained and tagged for a period of sixty (60) days or until credit is issued. 5. The factory may request parts to be returned for examination or analysis. These parts shall be sent by prepaid freight to the PowerTek, Inc. Returns sent freight collect, without the express, written permission of PowerTek, Inc, shall not be accepted by PowerTek, Inc. 6.
