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Columbia 12A-978Q597 (2008) Self Propelled Walk Behind Mower

Model: 12A-978Q597 (2008)
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.Quick Reference 978Q

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SPLG:1ST FIRE:RP CHAMP:N11/12 MTD-FF-22
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Air Filter MTD-17211-ZL8-023
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Control Cable MTD-946-0557
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Pulley Cable MTD-946-0937
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Clutch Cable MTD-946-0711B
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Throttle Wire MTD-946-0674A
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Drive Belt MTD-954-0460
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Blade Adaptor MTD-748-0377E
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Blade MTD-942-0741A
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BLADE BELL SUPPORT MTD-736-0524B-1
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Blade Nut MTD-710-1257
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Wheels - Front (Front) MTD-753-08093
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Wheel (Rear) MTD-734-2044B
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Hub Cap MTD-731-0981C
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Trailshield MTD-731-1901A
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Discharge Chute MTD-731-1832
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Grass Bag Assembly MTD-964-0076A
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Grass Bag MTD-747-0937-0637
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Grass Bag Frame MTD-931-1833A

Drive Assembly 978Q

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1
Rear Axle Assembly MTD-938-0012A
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2
Pivot Arm Ass’y MTD-682-0531-0637
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3
Trans Axle Ass’y MTD-682-7526-0637
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4
Chain Cover MTD-682-7528-0637
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5
Hex Wash HD Scr 5/16-18 x .62 MTD-710-0604A
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Hex Wash HD Tapp Scr 1/4-20 x .38 MTD-710-0653
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SCREW 1/4-20 x .620 GR5 MTD-710-0751
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Hex Wash HD. TT Tap Scr. 1/4-20 x .62 MTD-710-1652
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TT Screw 3/8-16 x 1.25 MTD-710-1315
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10
Clevis Pin .5" Dia. x 4.62" Lg. MTD-911-0835
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Chain, No. 48 Endless .50 x 24 links MTD-913-0453
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12
Cotter Pin MTD-914-0474
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13
Grip MTD-720-0223
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14
Spring Lever MTD-732-0803A
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15
RH Torsion Sprocket MTD-732-0832
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SPRING WASHER BELL MTD-736-0270
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Fl-Wash. .50" I.D. x 1.0" O.D. MTD-736-0369
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Shoulder Nut .625 DIA. x .165 MTD-938-0529
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Flange Bearing .506 ID MTD-741-0324A
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Hex Flange Bearing MTD-741-0522
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Hex Sleeve Bearing .504 x .830 Lg. MTD-741-0978
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Ratchet Wheel MTD-948-0318
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Spacer .55 ID x .75 MTD-950-0151
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Sleeve .511 id x .70 od x .37" lg. MTD-750-0515
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Spacer .38 x .625" Lg. MTD-750-0807
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Shoulder Spacer .385 ID x .715" Lg. MTD-950-1056
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Lift Assist Spring Bracket MTD-782-0568B-0637
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28
Hex Wash HD Tap Scr 3/8-16 x .88 MTD-710-0654A
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Hex Wash Hd Screw 10-32 x 5/8 MTD-710-1237
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Cable Clamp (B&S) MTD-BS-690798
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Handle Brkt. Ass’y RH *CHOOSE COLOR WHEN ORDERING* MTD-682-3052
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Handle Brkt. Ass’y LH *CHOOSE COLOR WHEN ORDERING* MTD-682-3053
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Screw AB 1/4-20 MTD-710-1348
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Cable Tie MTD-725-0157
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Rear Flap 17.25" Lg. MTD-731-1901A
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Rear Flap Wire MTD-732-0842
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Spring - Nylon MTD-10622B
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Weld Top L-Nut 1/4-20 Thd. MTD-712-0414
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Shld. Bolt .34" x 1/4 -20 Thd. MTD-738-0137A
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Shoulder Screw .340 x .285: 1/4-20 MTD-948-0188B
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Pawl LH (Not Shown) MTD-948-0188B
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Pawl RH MTD-748-0381
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Carriage Bolt 1/4-20 x .62 MTD-710-0134
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Carriage Bolt 1/4-10 x .75 MTD-710-0703
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Wing Nut MTD-712-0397A
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Bolt Retainer 1/4" x .50" OD MTD-726-0233
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Side Chute MTD-731-1832
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47
Mulching Baffle MTD-931-1833A
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Deck Ass’y (w/logo) *CHOOSE COLOR WHEN ORDERING* MTD-782-0046B
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Deck Ass’y (w/o logo) *CHOOSE COLOR WHEN ORDERING* MTD-782-0078B
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Transmission Ass’y MTD-918-0263A
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SP Cable 51.0" Lg. MTD-946-0711B
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V-Belt 3/8 x 39.24" Lg. MTD-954-0460
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Axle Ass’y MTD-611-0064-0637
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Hex Wash. Hd. B-Tap Scr. 1/4 x 1.0" lg MTD-710-1241
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Torx Hd. Scr. 5/16 x .75 MTD-710-1242
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Hairpin Clip MTD-714-0104
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Front Cover- Yellow MTD-931-1829
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Front Cover- Grey MTD-731-1834
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Front Cover- Black MTD-731-1836
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Bowed Washer MTD-936-0286
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Bushing Block .505 dia. MTD-741-0492A
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Single Lever Arm Control MTD-782-0565-0637
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Screw 1/4-15 X .75 MTD-710-0895
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Baffle MTD-731-08190A
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Cupped Wash .400 ID x .88 OD x .06 MTD-736-0105
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Axle Bolt for Plastic Rim MTD-738-0102
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Wave Washer .51" ID MTD-936-0504
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Hex Bolt 3/8-24 x 2.5" Lg. MTD-710-1257
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BLADE BELL SUPPORT MTD-736-0524B-1
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Blade 21" (w/star) MTD-942-0741A
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Blade Adapter (w/star) MTD-748-0377E
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Chute Assembly (Incl. Ref No. 76-80) MTD-631-0067
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Push Cap .188 Rod MTD-726-0111
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Top Chute MTD-931-0066
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Top Discharge Door Chute MTD-731-1874A
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Torsion Spring MTD-732-0819
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Pivot Rod MTD-747-0965
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Wheels - Front (Idle/Zag Ball Brg) MTD-753-08093
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Hub Cap -Grey MTD-731-0981C
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Hub Cap - Beige MTD-731-0982C
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Hub Cap -Yellow MTD-731-1426B
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Rear Wheel Ass’y 9 x 2.125 (Drive/Zag/Blk) MTD-734-2044B
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Shroud - Yellow MTD-931-04526
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Screw MTD-7510042823

General Assembly

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1
Carriage Bolt 5/16-18 x 2.0 MTD-710-1174
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2
Hairpin Clip MTD-714-0104
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Plastic Knob MTD-720-04072A
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Cable Tie MTD-725-0157
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Std. Control Handle MTD-747-0824B-0637
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Control Bail Lever - Red MTD-647-04014
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Control Bail Lever - Grey NLA MTD-647-04046
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Flg. Lock Nut 5/16-18 Gr. F Nylon MTD-712-04063
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SPRING WASHER BELL MTD-736-0270
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Throttle Wire 60.0" Lg. Yellow MTD-946-0674A
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Hex Ins. Locknut 1/4-20 MTD-712-0324
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Mach. Scr. 1/4-20 x 1.319 MTD-710-1270
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Cable Bracket MTD-746-0883
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Carriage Bolt 1/4-20 x .75 MTD-710-0703
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Wing Nut MTD-712-0397A
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Control Cable 47.0" Lg.(Honda) MTD-946-0557
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Control Cover MTD-753-0717
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6 Speed Shift Lever MTD-731-0924
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3 Tooth Rack Gear Insert MTD-913-0397
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C-sunk Tap Screw #10 x .75 MTD-710-1667A
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Shift Lever Spring MTD-732-0627A
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Rack Cable Bracket MTD-16864
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Control Cover MTD-753-0717
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Control Cover MTD-753-0717
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Control Lever MTD-731-0620A
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Pulley Cable 53" Lg. MTD-946-0939A
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Clutch Cable - 53" Lg. Orange MTD-946-0711B
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Control Bail Lever MTD-747-0824B-0637
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FOAM GRIP - 9" MTD-720-0294A
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Upper Handle MTD-749-0439E-0637
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Lower Handle MTD-749-0907B
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Grassbag Cover w/Label MTD-631-0072
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Grasscatcher Pivot Rod MTD-747-0939
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Push Cap MTD-926-0106
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Grasscatcher Upper Frame MTD-747-0937-0637
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Grasscatcher Support Rod MTD-747-0940A-0637
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Grass Bag Assembly MTD-964-0076A
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Grassbag(red logo) NLA MTD-664-0075
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Grassbag(WOP) MTD-664-04036A
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Grassbag MTD-964-0076

Label Map

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777I22777
LABEL-10W30 ENG SHROUD MTD-777I22777
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777S30198
LABEL:MOWER MTD-777S30198
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777S30153
LABEL-DANGER CHUTE MTD-777S30153
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777CX00022
LBLX: MADE IN USA MTD-777CX00022
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777S30140
LABEL-DANGER MTD-777S30140
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777I20374
LABEL SIX SPEED MTD-777I20374
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777S30164
LBL:SAFETY PICT MTD-777S30164
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777D12162
LABEL-ENG SHROUD COLUMBIA 978Q Model 978Q Only MTD-777D12162
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777D12163
LABEL-ENG SHROUD COLUMBIA 998Q Model 998Q Only MTD-777D12163
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777I20291
LABEL-HEIGHT ADJUSTMENT MTD-777I20291
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777I20292
LABEL-CASTOR LOCK LH Model 998Q Only MTD-777I20292
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777I20745
LABEL-CASTOR LOCK RH Model 998Q Only MTD-777I20745

Pulley Assembly

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1
Multi Speed Pulley Ass’y MTD-956-0613A
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Carriage Bolt 1/4-20 x .62\5" Lg. Gr. 2 MTD-710-0134
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Hex Wash HD. TT Tap Scr. 1/4-20 x .62 MTD-710-1652
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Pivot Shaft MTD-711-1114
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Hex Nut 1/4-28 Thd. MTD-712-0138
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Flanged Lock Nut 1/4-20 Gr. F Nylon MTD-712-04064
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Torsion Spring LH MTD-932-0807
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L-Wash 1/4 ID MTD-936-0329
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Wave Washer .88 ID x 1.38 OD x .029 MTD-936-0526
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Hex Shld.Scr.1/4-28 x .375 MTD-738-0924A
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Pulley Cable 53" Lg. MTD-946-0939A
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Sleeve Spacer .88 ID x 1.0 OD x .48 MTD-950-1070
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Sleeve Spacer .88 ID x 1.13 OD x .12 MTD-950-1071
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Cable Guide Roller MTD-756-0625
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Cable Adjustment Bracket MTD-782-7574A-0637
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Cable Mounting Bracket MTD-782-7575B-0637
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Control Arm *CHOOSE COLOR WHEN ORDERING* MTD-782-7596A
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Pivot Bracket MTD-782-7597
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Sleeve Spacer .878 x 1.25 x .545 (with Honda engine only) MTD-750-1260

Transmission Assembly

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1
Hex Jam Nut 5/16-24 MTD-712-3025
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2
Bell-Wash. .325" I.D. MTD-736-0425
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Pulley MTD-756-0656
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Fl. Washer .510 x 1.120 x .060 MTD-736-3084
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Hex Ins Jam L-Nut 1/4-28 MTD-712-0896
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Belt Keeper MTD-782-7598
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Ball Bearing 17 x 40 x 12 mm MTD-941-0600
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Flange Spacer MTD-750-1050
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Idler Bracket Ass’y MTD-982-0027A
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Hex Bolt 1/4-28 x 1" Lg MTD-710-0299
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Extension Spring 0.33 OD x 1.25 MTD-932-0849A
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Bearing Sleeve MTD-741-0682A
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Fl. Washer .885 x 1.145 x .030 MTD-936-0570
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Oil Seal MTD-921-0329
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Upper Housing Ass’y MTD-618-0253
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Thrust Washer .510 ID x .750 OD x .033 MTD-936-0616
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Pinion Shaft 10 T MTD-917-1487
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18
Thrust Wash. .382" I.D. x .70" O.D. MTD-736-0314
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19
Thrust Washer .388 x .625 x .062 MTD-936-0569
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Lower Housing Ass’y MTD-918-0252
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21
Thd Forming Scr. 1/4-20 x .75 MTD-710-0642
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Cable Bracket MTD-782-7601A-0637
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Bearing MTD-941-0674
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Shaft Ass’y MTD-911-0066
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25
Plug MTD-721-0325
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Gear 34 T MTD-717-1469
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Output Shaft 6 T MTD-711-1168
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Flange Bearing MTD-941-0673
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30
Pivot Bracket MTD-782-7595
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31
Flange Bearing .506 ID MTD-741-0324A
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32
Fl-Wash. .50" I.D. x 1.0" O.D. MTD-736-0369
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33
Thrust Bearing .507 ID x .750 OD x .0625 MTD-741-0690
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Processing