Rear-tine Tiller Models 630C—Tuffy®634F—BroncoTM634A—Super BroncoTMModel 634A ShownOperator’s ManualPRINTED IN U.S.A.770-10594D.fm11/19/03FORM NO.IMPO
10WARNING: Before operating your machine, carefully read and understand all safety, controls and operating instructions in this Manual, the separate E
11WARNING: Before starting engine, be sure that both wheels are in WHEEL DRIVE position. See Wheels Drive Pins for instructions.Engaging the Forward
12WARNING: Before operating your machine, carefully read and understand all safety (Section 1), controls (Section 3) and operating instructions (Secti
13Stopping the Engine and Tiller1. To stop the wheels and tines, release the Forward Clutch Bail (all models) or the Re-verse Clutch Control (Models 6
14• When preparing a seedbed, go over the same path twice in the first row, thenoverlap one-half the tiller width on the rest of the passes (see Fig.
15Power composting simply means tilling under and burying in the soil all manner of organic matter such as crop residues, leaves, grass clippings and
16The tines have a self-clearing action which eliminates most tangling of debris inthe tines. However, occasionally dry grass, stringy stalks or toug
17WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spa
184. The gear oil level is correct if the gear oil is approximately halfway up the side of the main drive shaft.5. If the gear oil level is low, add
19CHECKING AND ADJUSTING FORWARD DRIVE BELT TENSIONIt is important to maintain correct tension on the forward drive belt. A loose belt will cause the
2TABLE OF CONTENTSFINDING MODEL NUMBERThis Operator’s Manual is an important part of your new lawn tractor. It will help you assemble, prepare and mai
20FORWARD CLUTCH BAIL ADJUSTMENTIf the Forward Clutch Bail does not func-tion properly, first check that the forward drive belt is adjusted properly (
213. Clean around the oil dipstick or oil fill tube (whichever applies) to prevent dirt from falling into the crankcase. 4. On engines with an oil
22TROUBLESHOOTINGPROBLEM POSSIBLE CAUSE CORRECTIONEngine does not start 1. Spark plug wire disconnected. 1. Reconnect wire.2. Engine Throttle Control
23REF NO.PART NO. DESCRIPTION1 1185469 Spirol Pin2 710-0597 Hex Hd. Screw, 1/4-20 x 13 710-0599 Screw, Self-Tapping,1/4-20 x 1/24 710-0874 Hex Hd. Scr
24MODELS 630C, 634F & 634A51025151121621313204171122725862314181879
25MODELS 630C, 634F & 634A(A) For Model 630C(B) For Model 634F(C) For Model 634AREF NO.PART NO. DESCRIPTION1 1916719 Cable Assembly, Reverse Clutc
26MODELS 630C, 634F & 634A* Use as required to obtain between .005” and .015” allowable end-play.REF NO.PART NO. DESCRIPTION1 GW-9517 Snap Ring2 G
27MODELS 630C, 634F & 634A* Use as required to obtain between .005” and .030” allowable end-play.REF NO.PART NO. DESCRIPTION1 GW-9512 Retainer, Sn
28MODELS 630C, 634F & 634AREF NO.PART NO. DESCRIPTION1 GW-9727 Plug, Transmission Oil Fill2 710-04049 Hex Hd. Flange Screw, 5/16-18 x 5/8,Gr. 53 7
29MODELS 630C, 634F & 634AFRONTREF NO.PART NO. DESCRIPTION1 710-0514 Hex Hd. Screw, 3/8-16 x 1, Grade 52 GW-50049-02 Single Bolo Tine - Left Hand
3Training1. Carefully read this Own-er’s Manual, the separate Engine Owner’s Manual, and any other literature you may receive. Be thoroughly familiar
30MODELS 630C, 634F & 634A92428203025271111517192811210141638193938331322 (B, C)37 (A)4012843783719393343834FORWARDCLUTCH CABLE3542282422222461321
31MODELS 630C, 634F & 634AREF NO.PART NO. DESCRIPTION1 736-0159 Flat Washer, 5/162 714-0139 Key, 3/16" x 2" (B) (C)3 1916531 Pulley, Eng
TROY-BILT TILLER LIFETIME LIMITED WARRANTYWHAT PRODUCT All Troy-Bilt branded rear tine walk-behind tillers with gear drive transmissions.IS COVERED T
44. Exercise caution to avoid slipping or fall-ing.5. If the unit should start to vibrate abnor-mally, stop the engine, disconnect the spark plug wire
5DecalsFor your safety and the safety of others, vari-ous safety and operational decals are located on your unit (see Figure 1-2). Keep the decals cl
6WARNING: To prevent personal injury or property damage, do not start the engine until all assembly steps are complete and you have read and understan
73. Slide the wheel fully inward on the wheel shaft (N, Fig. 2-3). Reinstall the wheel drive pin (M) through the wheel shaft only (not through the wh
84. Check for correct tension on the forward drive belt by taking two measurements of the cable spring, as follows:a. With the Forward Clutch Bail (Y
9STEP 6: CHECK TRANSMISSION OIL LEVEL The transmission was filled with gear oil at the factory. However, you should check the gear oil level at this t
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