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McCulloch MC550 - page 1
01.12.10 AP 433691 Printed in the U.S.A. Operator's manual / /96083000300 / 2010-01 MC550 ...
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McCulloch MC550 - page 2
2 • Keep children and pets away . • Do not overload the machine capacity by attempting to till too deep at too fast a rate. • Never operate the machine at high speeds on slippery surfaces. Look behind and use care when backing. • Never allow bystanders near the unit. • Use only attachments and accessories approved by the manufacturer of t ...
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McCulloch MC550 - page 3
3 PRODUCT SPECIFICA TIONS Gasoline Capacity: 0.9 Quarts (0,85 L) Unleaded Regular Oil (API-SG-SL): SAE 10w-30(Above 32°F/0°C) (Capacity: 20 oz./0.6L) SAE 5w-30(Below 32°F/0°C) Spark Plug: Champion RJ19LM or J19LM (Gap: .030"/0.76mm) CONGRA TUL A TIONS on your purchase of a new tiller . It has been designed, en gi neered and manu fac tured ...
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McCulloch MC550 - page 4
4 OPERA TOR’S POSITION (See Fig. 1) When right or left hand is mentioned in this manual, it means when you are in the operating position (standing behind tiller handles). Y our new tiller has been assembled at the factory with exception of those parts left unassembled for shipping purposes. T o ensure safe and proper operation of your tiller all ...
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McCulloch MC550 - page 5
5 Fig. 4 TILLING WIDTH • Tilling width may be adjusted to better handle your tilling con di tions (See “TINE ARRANGEMENT” in the Service and Adjustments section of this manual.) TINE OPERA TION • Check tine operation before first use. (See “TINE OPERA TION CHECK” in the Service and Adjustments section of this manual.) TO INST ALL DEPTH ...
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McCulloch MC550 - page 6
6 KNOW YOUR TILLER READ THIS MANUAL AND SAFETY RULES BEFORE OPERA TING YOUR TILLER. Compare the illustrations with your tiller to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. These symbols may appear on your Tiller or in literature supplied with the product. Learn and understand ...
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McCulloch MC550 - page 7
7 The operation of any tiller can result in foreign objects thrown into the eyes, which can result in severe eye damage. Always wear safety glasses or eye shields before starting your tiller and while tilling. W e recommend a wide vision safety mask for over spectacles or standard safety glasses. 00155 TILLING The speed and depth of tilling is regu ...
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McCulloch MC550 - page 8
8 ADD GASOLINE • Fill fuel tank to bottom of filler neck. Do not overfill. Use fresh, clean, regular un lead ed gasoline with a minimum of 87 octane. (Use of leaded gasoline will increase carbon and lead oxide deposits and reduce valve life). Do not mix oil with gasoline. Purchase fuel in quan ti ties that can be used within 30 days to assure fue ...
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McCulloch MC550 - page 9
9 BREAKING IN YOUR TILLER Break-in your belt(s), pulleys and tine control before you actually begin tilling. • Start engine, tip tines off ground by pressing handles down and engage tine control to start tine rotation. Allow tines to rotate for five minutes. TILLING HINTS CAUTION: Until you are accustomed to handling your tiller , start ac tu al ...
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McCulloch MC550 - page 10
10 LUBRICA TION CHART GENERAL RECOMMENDA TIONS The warranty on this tiller does not cover items that have been subjected to operator abuse or negligence. T o receive full value from the warranty , the operator must main tain tiller as instructed in this manual. Some adjustments will need to be made periodically to properly maintain your tiller . At ...
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McCulloch MC550 - page 11
11 Fig. 12 Fig. 13 Disconnect spark plug wire before performing any maintenance (except car bu re tor adjustment) to prevent accidental start ing of engine. Prevent fires! Keep the engine free of grass, leaves, spilled oil, or fuel. Re move fuel from tank before tipping unit for maintenance. Clean muffler area of all grass, dirt, and debris. Do not ...
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McCulloch MC550 - page 12
12 COOLING SYSTEM (See Fig. 15) Y our engine is air cooled. For proper en gine performance and long life keep your engine clean. • Remove blower housing and clean as nec es sary . • Keep cylinder fins free of dirt and chaff . Fig. 15 MUFFLER Do not operate tiller without muffler . Do not tamper with exhaust system. Damaged mufflers or spark arr ...
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McCulloch MC550 - page 13
13 TILLER Fig. 16 Fig. 17 Fig. 19 CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come into contact with plug. TINE ARRANGEMENT Y our outer tines can be assembled in several different ways to suit your tilling or cultivating needs. CAUTION: Tines are sharp. W ear gloves or other protection when han dling tines. ti ...
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McCulloch MC550 - page 14
14 Fig. 20 Fig. 21 Fig. 22 ENGINE TO AD JUST CARBURETOR The carburetor has been preset at the factory and ad just ment should not be necessary . However , engine per for mance can be affected by dif fer enc es in fuel, tem per a ture, al ti tude or load. If the carburetor does need ad just ment, contact your nearest authorized service center/de par ...
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McCulloch MC550 - page 15
15 ENGINE FUEL SYSTEM IMPORT ANT : IT IS IMPORT ANT TO PREVENT GUM DEPOSITS FROM FORMING IN ESSENTIAL FUEL SYSTEM P ARTS SUCH AS THE CARBURETOR, FUEL FIL TER, FUEL HOSE, OR T ANK DURING STORAGE. ALSO , EXPERIENCE INDICA TES THA T ALCOHOL BLENDED FUELS (CALLED GASOHOL OR USING ETHANOL OR METHANOL) CAN A TTRACT MOISTURE WHICH LEADS TO SEP ARA TION AN ...
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McCulloch MC550 - page 16
16 Will not start 1. Out of fuel. 1. Fill fuel tank. 2. Engine not “CHOKED” properly . 2. See “TO ST ART ENGINE” in the Operation section. 3. Engine flooded. 3. W ait several minutes before attempting to start. 4. Dirty air cleaner . 4. Clean or replace air cleaner cartridge. 5. W ater in fuel. 5. Empty fuel tank and carburetor , and refill ...
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McCulloch MC550 - page 17
17 TILLER - - MODEL NUMBER MC550 (96083000300) DECALS KEY P ART NO . NO. DESCRIPTION 1 433415 Decal, Tine, Shield, McCulloch 2 434458 Decal, Tine, Shield, Warning 3 141906 Decal, Warning, Rotating Tines 4 141907 Decal, Hand Placement 1 2 3 4 ...
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McCulloch MC550 - page 18
18 engine-transmission-tines_1 10 11 1 2 2 3 4 5 5 6 7 7 9 8 12 13 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 5 29 29 30 30 31 5 TILLER - - MODEL NUMBER MC550 (96083000300) ENGINE, TRANSMISSION, AND TINES ...
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McCulloch MC550 - page 19
19 TILLER - - MODEL NUMBER MC550 (96083000300) ENGINE, TRANSMISSION, AND TINES NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm 1 421338 Engine 2 72110608 Bolt Carriage 3/8 - 16 x 1 3 73900500 Nut Lock Flg 5/16 -18 unc 4 425398 Plug Snap In 5 73900600 Nut Lock Flg 3/8 - 16 unc 6 421337 Housing Clutch 7 17000616 Screw 3/8 - 16 x ...
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McCulloch MC550 - page 20
20 TILLER - - MODEL NUMBER MC550 (96083000300) HANDLE, WHEEL, AND DEPTH ST AKE Handles- Wheels-Depth Stake_1.ai 1 2 3 7 4 13 14 9 10 18 10 18 12 11 17 19 17 22 20 19 21 5 5 23 15 16 17 20 21 8 5 6 22 23 ...
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McCulloch MC550 - page 21
21 TILLER - - MODEL NUMBER MC550 (96083000300) HANDLE, WHEEL, AND DEPTH ST AKE 1 430579X428 Console Tiller Handle 2 165787 Grip Handle 3 431332 Assembly Handle Column 4 72010520 Bolt 5/16 - 18 x 2.50 5 189713X428 Knob Wing 6 425091 Lever Control Tine 7 12000059 Retainer Ring 8 431762 Pin Pivot 9 424190 Handle Lower 10 425398 Plug Snap In 11 432521 ...
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McCulloch MC550 - page 22
22 LIMITED W ARRANTY The Manufacturer warrants to the original consumer purchaser that this product as manufactured is free from defects in materi- als and work man ship. For a period of two (2) years from date of purchase by the original consumer purchaser , we will repair or replace, at our option, without charge for parts or labor incurred in re ...
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