990174 - 32" Heavy Duty Tiller
Tiller Mfg# 990174: http://www.simplicitytechpubs.com/6767PRINT/PDF_files/TP_400_1233_00_AT_S.pdf
requires belt numbers: 154273 = 42" 105122 = 56"
More pictures coming.
Belt - Drive 154273 Belt - Mower Drive 105122 Belt - Transmission Drive 152017
HITCH GROUP
A 105127 Support Assembly, Brg. Hsg. B 108054 Bearing, Needle C 727001 Fitting, Grease D 705017 Capscrew, Hex, 5/16"-18 NC x 3/4" lg. E 720001 Washer, Lock 5/16" F 153079 Washer G 105191 NLA-PULLEY-06.50 H 725003 Key, Woodruff J 105132 Bolt K 727002 Fitting, Grease L 719003 Washer, Plain, 7/16" M 706012 Capscrew, Hex, 1/2"-20 NF x 1-3/4" lg. N 105250 NLA-WASHER P 105133 NLA-SPACER-0.453 Q 720006 Washer, Lock 7/16" R 717022 Nut, Hex, Full 7/16"-14 NC S 715064 Capscrew 7/16"-14 NC x 4" lg. T 715052 NLA-SCREW U 717014 Nut, Hex, Jam-3/8"-24 NF V 8161199 Washer, Plain, 3/8" W 105137 NLA-FRAME ASSY X 105140 NLA-ROD-PIVOT Y 8161045 Clip, Spring Z 105141 NLA-BAR ASSY-LIF AA 118053 Pin AB 105251 NLA-LEVER ASSY-R AC 713503 Screw, Set, Cup Pr., Socket Hd. 5/16"-18 NC x 2/16" lg. AD 105253 NLA-LEVER ASSY-L AE 725002 Key Woodruff #6 AF 105153 NLA-PIVOT-UPPER AG 105154 NLA-PIVOT-LOWER AH 154264 Ring, Retaining AJ 108415 Screw Assembly, Adjusting AK 719002 Washer Plain 5/16" AL 8191047 Spring AM 105155 NLA-DEFLECTOR AS AN 105238 NLA-WASHER-THRUS AP 105236 NLA-ADAPTER-1.12 AQ 105058 Bushing AR 715058 Capscrew Hex, 7/16"-14 NC x 4-1/2" lg. AS 155037 Pin AT 705005 Capscrew, Hex, 3/8"-16 x 1" lg. AU 719001 Washer, Plain 3/8" AV 720002 Washer, Lock 3/8" AW 717003 Nut, Hex, Full, 3/8"-16
HOUSING GROUP
A 105123 NLA-GUARD ASSY-C B 105189 NLA-SHAFT & SPRO C 105192 Spacer, Intermediate D 105193 Sprocket Assembly E 105195 Bearing, Roller F 8281014 Washer G 105194 Ring, Retaining H 8151071 Bearing J 8151072 NLA-FLANGE-BEARI K 8151073 Collar, Bearing L 702003 Bolt Carriage, 3/8"-16 NC x 3/4" lg. M 720002 Washer Lock 3/8" N 717003 Nut, Hex, Full 3/8"-16 NC P 105084 Shaft Tine Q 725503 Key, Hi-Pro., 1/4" x 7/8" R 8151022 Sprocket S 713503 Screw, Set Cup Point, Socket Hd. 5/16"-18 NC x 5/16" lg. T 815015 Chain, Rotor U 105055 NLA-CHAIN-ROLLER V 105085 NLA-SPACER-GUARD W 105250 NLA-WASHER X 720006 Washer, Lock 7/16" Y 717022 Nut, Hex, Full 7/16"-14 NC Z 105016 Gasket AA 105229 NLA-PLATE ASSY AB 715052 NLA-SCREW AC 717004 Nut, Hex, Jam, 3/8"-24 NF AD 8161199 Washer Plain 3/8" AE 705012 Capscrew, Hex, 5/16"-18 NC x 5/8" lg. AF 703005 Carriage, Bolt 5/16"-18 NC x 3/4" lg. AG 105237 NLA-SHIELD AH 717511 Nut, Hex, Full 5/16"-18 NC AJ 720001 Washer, Lock 5/16" AK 715063 Capscrew Hex, 7/16"-14 NC x 3-3/4" lg.
TILLER DRIVE
A 105166 NLA-SLEEVE ASSY B 105169 NLA-RING-SNAP C 153058 Pin D 8161045 Clip, Spring E 105170 NLA-PULLEYS & BE F 105171 NLA-PULLEY-10.00 G 105172 NLA-PULLEY-05.50 H 105173 Bearing J 705023 Capscrew, Hex., 5/16"-18 NC x 1 3/4" lg. K 105174 Ring L 720001 Washer, Lock, 5/16" M 717001 Nut, Hex, Full, 5/16"-18 NC N 105175 NLA-RING-RETAINI P 105176 Pulley, Tiller Drive Q 713503 Screw, Set, Cup Point, Socket Head, 5/16"-18 NC x 5/16" lg. R 8051081 Key S 154273 Belt, "V" T 105122 Belt, "V" U 105177 NLA-LEVER ASSY-I V 108386 Pulley, Idler W 717003 Nut, Hex, Full, 3/8"-16 NC X 719002 Washer, Plain, 5/16" Y 720002 Washer, Lock, 3/8" Z 705016 Capscrew, Hex, 3/8"-16 NC x 1 1/4" lg. AA 717003 Nut, Hex, Full, 3/8"-16 NC AB 105182 Lever Assembly, Clutch AC 122005 Knob AD 105184 NLA-SPACER-0.391 AE 705005 Capscrew, Hex, 3/8"-16 NC x 1" lg. AF 719001 Washer, Plain, 3/8" AG 720002 Washer, Lock, 3/8" AH 717003 Nut, Hex, Full, 3/8"-16 NC AJ 8081503 Guide Assembly AK 705031 Capscrew, Hex, 3/8"-16 NC x 7/8" lg. AL 105184 NLA-SPACER-0.391 AM 719001 Washer, Plain, 3/8" AN 720002 Washer, Lock, 3/8" AP 717003 Nut, Hex, Full, 3/8"-16 NC AQ 105185 NLA-ROD AR 8191045 Spring AS 8191022 Collar Set AT 713001 Screw Set, Square Head, Cup Point, 1/4"-20 NC x 3/8" lg. AU 8160145 Clip, Spring AV 105186 NLA-RELEASE BELT AW 105187 NLA-BRACKET-BELT AX 705031 Capscrew, Hex, 3/8"-16 NC x 7/8" lg. AY 719001 Washer, Plain, 3/8" AZ 720002 Washer, Lock, 3/8"
TINE ASSEMBLY
A 105159 NLA-BLADE ASSY-R B 105163 NLA-BLADE ASSY-L C 105164 NLA-BLADE ASSY-R D 105165 NLA-BLADE ASSY-L E 105248 NLA-PLATE ASSY-T F 8152002 Blade, Tine, Right Hand G 8152001 Blade, Tine Left Hand H 105162 NLA-SPACER J 706014 Capscrew, Hex, 7/16"-20 NC x 1 3/4" lg K 717512 Nut, Lock, Hex, Full, 7/16"-20 NC L 105249 Pin, Tine Shaft M 722009 Pin, Cotter, 1/8" diameter N 105245 NLA-PLATE ASSY-T
TRANSMISSION DRIVE
BB 152017 Belt, "V" BC 105188 NLA-PULLEY-DRIVE BD 8061081 Key
The picture below is this tiller installed on an Allis Chalmers B1 Tractor:
The main drive pulley has a size of around 6.5":
The clutch pulley is around 10":
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