MTD 830 Series Shop Handbook
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Also See for 830 Series:
- Operator's manual (21 pages) ,
- Operator's manual (25 pages) ,
- Operator's manual (20 pages)
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For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983
Shop Handbook
830-860 Series mowers
NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outdoor power
equipment of the kind described in this publication, and are not intended for use by untrained or inexperienced individuals.
These materials are intended to provide supplemental information to assist the trained technician. Untrained or inexperi-
enced individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all
instructions and use common sense when working on power equipment. This includes the contents of the product's Oper-
ators Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication,
although care has been taken to make it as complete and accurate as possible at the time of publication. However, due to
the variety of outdoor power equipment and continuing product changes that occur over time, updates will be made to these
instructions from time to time. Therefore, it may be necessary to obtain the latest materials before servicing or repairing a
product. The company reserves the right to make changes at any time to this publication without prior notice and without
incurring an obligation to make such changes to previously published versions. Instructions, photographs and illustrations
used in this publication are for reference use only and may not depict actual model and component parts.
© Copyright 2006 MTD Products Inc. All Rights Reserved
MTD Products Inc - Product Training and Education Department
FORM NUMBER - 769-03727
12/2007
www.mymowerparts.com
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Table of Contents
Related Manuals for MTD 830 Series
Summary of Contents for MTD 830 Series
- Page 1 Instructions, photographs and illustrations used in this publication are for reference use only and may not depict actual model and component parts. © Copyright 2006 MTD Products Inc. All Rights Reserved MTD Products Inc - Product Training and Education Department...
- Page 2 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com...
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Page 3: Table Of Contents
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 Chapter 1: Introduction ......................1 830 series ..........................1 860 series ..........................2 Chapter 2: Front wheels and axle ..................3 Front wheels ........................3 Front axle ..........................3 Chapter 3: Cutting blade ....................5 Chapter 4: Drive belt and baffles ..................7... -
Page 4: Chapter 1: Introduction
The 830 and 860 Series lawn mowers are rear-wheel 830 series drive self-propelled mowers with a unique variable The 830 series is identified by and eleven digit model ground speed feature. They are both capable of mulch- number, e.g.: 12A-83X-XXX. -
Page 5: 860 Series
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS 860 series The 860 series is very similar to the 830 Series except for large rear wheels and some engineering differences that are necessary to accommodate the large rear wheels. -
Page 6: Chapter 2: Front Wheels And Axle
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS CHAPTER 2: FRONT WHEELS AND AXLE Front wheels Front axle The front wheels fit over the ends of the axle, and are To remove the front axle: held to the axle by nuts. - Page 7 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Just inside of the deck shell, near each end of As the flanged hex bushings are released from the axle is a white plastic “C” clip. Remove both the deck shell, the axle will come free of the “C”...
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Page 8: Chapter 3: Cutting Blade
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS CHAPTER 3: CUTTING BLADE To remove the cutting blade: Lift away the blade. See Figure 3.2. Disconnect and ground the spark plug wire. Blade adaptor If the level of gasoline in the fuel tank is great enough that it will spill if the mower is tipped, remove the fuel filler cap, place a plastic bag over the neck of the fuel tank, and reinstall the... - Page 9 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Check the blade adaptor for damage. There is a wave washer on the crankshaft, directly above the wave washer. See Figure 3.3. Crankshaft Wave washer Blade adaptor Figure 3.3 Install the blade with wave washer, blade adap- tor, and bellville spring washer properly posi-...
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Page 10: Chapter 4: Drive Belt And Baffles
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS CHAPTER 4: DRIVE BELT AND BAFFLES To remove the drive belt: Remove the rear baffle: First remove the mulch plug. See Figure 4.1. 4a. Remove the two screws that hold the rear of the baffle to the mower deck. - Page 11 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Remove the belt by: Remove the single screw that holds the front of the baffle to the mower deck, using a 3/8” 8a. Pull the belt down off of the crankshaft. wrench.
- Page 12 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Check the crankshaft pulley: Replace the belt: 9a. The splines in both sheaves of the crank- 10a. Reverse the removal process. shaft pulley should be clean and smooth, 10b.
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Page 13: Chapter 5: Speed Control System
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS CHAPTER 5: SPEED CONTROL SYSTEM How the speed control works The cam has a series of ramps that work against ramps in the crankshaft pulley cover, forcing the The red lever on the control panel applies ten- two sheaves of the crankshaft pulley together. -
Page 14: Speed Control Cable And Lever
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS The driven pulley (transmission) reaction is Speed control cable and lever opposite of the driving (engine) pulley. As a Remove the crankshaft pulley cover, as given linear belt speed is applied to an effec- described in the “DRIVE BELT”... - Page 15 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Draw the cable and spring up through the open- Beneath the control panel on the handlebar, ing in the deck that the cables pass through. remove the cable clamp screw that holds the See Figure 5.7.
- Page 16 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS From this point, the cable-end can be maneu- 10c. Separate the control lever from the cable vered out of the control lever assembly, and the quadrant by removing the screw that con- cable can be removed completely.
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Page 17: Clutch Cable Replacement
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Squeeze the barbs on the cable housing to Clutch cable replacement release it from the bracket on the transmission. Preparation: A 9mm open-end wrench or a Ford fuel line Remove the baffle as described in Chap- removal tool may be handy for this task. - Page 18 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Pull the cable and spring through the opening in Pry the cable bracket loose from the upper han- the deck. See Figure 5.19. dlebar. See Figure 5.21. Cable Pull clutch cable up bracket...
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Page 19: Chapter 6: Transmission And Rear Wheels
For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS CHAPTER 6: TRANSMISSION AND REAR WHEELS Transmission replacement 1c. Support the mower by the back of the deck, in such a way that the rear wheels can be NOTE: The internal parts of the transmission are removed. - Page 20 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS 2b. Hold the rear drive axle to prevent it from 2c. Slip the spur gears off of the drive axle ends. rotating, and remove the spur gears using See Figure 6.5.
- Page 21 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Releasing the axle bearings 3c. Pull the bearing keepers back (inward) to release the bearings from the height 3a. Remove the screws that hold the height adjuster brackets. See Figure 6.9. adjustment handle and the height adjuster connecting link to the left rear height Handlebar bracket...
- Page 22 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS Transmission removal from deck 4c. Once the transmission is free of the deck, the clutch cable can be easily discon- 4a. With the axle bearing assemblies free of the nected as described in Chapter 5: Speed deck, the axle will move, but the transmis- control system.
- Page 23 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS 6c. With the nut and spring removed, the vari- Removing the variable speed pulley from the top of the transmission: able speed pulley can be lifted off of the input shaft.
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Page 24: Large-Wheel Mowers
Spur gear Ring gear Figure 6.19 Figure 6.21 NOTE: The 830 Series employs a spur gear that drives against the outside of the gear attached to the wheel. In that arrangement, the spur gear and the wheel rotate in opposite directions. - Page 25 For Discount White Outdoor Parts Call 606-678-9623 or 606-561-4983 830-860 SERIES SELF-PROPELLED MOWERS The idler gear is easily removed using a 9/16” The spur gear can be removed with a T-20 Torx wrench. See Figure 6.22. driver. The axle must be clamped, to prevent it from rotating.
- Page 26 With the wheel, spur gear, idler gear, and drive Transmission removal from the 860 Series is pin removed, the dust cover can be lifted off of similar to the 830 Series: See Figure 6.28. the axle. See Figure 6.26. Figure 6.28 Figure 6.26...