Sears Suburban antique Electric actuator disassembly

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staninlowerAL
10+ Years
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Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1 is parts), (1)'57 IH Cub LoBoy w/FH, (2)154 Number Series Loboys, (1 is parts), '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76? Yanmar 2TR15 1500 & Bush Hog SQ42S-2 mower, '78? FORD Dexta, '86 FORD LGT14D & 48" Mower, (3)Cub Cadets & Mowers (MTD), (4) Sears Surburban's, other MTD mowers, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Sears Suburban antique Electric actuator disassembly

Postby staninlowerAL » Sun Nov 29, 2020 10:21 pm

I'm trying to disassemble this Sears Suburban actuator to determine why the jackscrew, reference #5 does not move when the motor runs/turns the 3 gears on the lower end of the assembly, to include the lower end of the jackscrew which is pinned to the clutch gear,reference #8. Cover tube, reference #6, when screwed into the base, reference #3, allows access to the jackscrew, reference #5 to be rotated/turned by hand from the top so it appears there is some sort of connection that is loose/broken between the top and bottom of reference #5 jackscrew. Hoping for some suggestions/guidance on removing this assembly from the brake assembly, reference #7/housing to see if repairs are possible. At this point I have not been able to remove the cover tube ref. #6 from the base, ref. #3, probably has never been removed in 50 years. Tks for any ideas.
elect 3pt hitch p8cy.jpg

Jim Becker
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Re: Sears Suburban antique Electric actuator disassembly

Postby Jim Becker » Sun Nov 29, 2020 11:02 pm

Just guessing, maybe clamp #3 in a vise and use a strap wrench on #6? Put it up toward the top end to avoid collapsing it? Have you been soaking that threaded joint with penetrating oil?

staninlowerAL
10+ Years
10+ Years
Posts: 4085
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1 is parts), (1)'57 IH Cub LoBoy w/FH, (2)154 Number Series Loboys, (1 is parts), '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76? Yanmar 2TR15 1500 & Bush Hog SQ42S-2 mower, '78? FORD Dexta, '86 FORD LGT14D & 48" Mower, (3)Cub Cadets & Mowers (MTD), (4) Sears Surburban's, other MTD mowers, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Sears Suburban antique Electric actuator disassembly

Postby staninlowerAL » Mon Nov 30, 2020 8:31 am

Tks, Jim. My initial efforts at cleaning/soaking as well as clamping in a vice (I used a pipe wrench instead of a strap wrench on the tube) were unsuccessful. I will try again with the base cover installed since the plate #3 is rather thin and it slipped in the vice when torque was applied to #6. I have also considered removing the clutch gear #8 from the jackshaft and see if the assembly will then slip up through the top and allow inspection of the jackscrew. Probably not today, the weather here is unusually cold/windy for the deep south (more like what you guys get a little farther north), and I'm limited to an open shed for workspace. I will report any success that I have.

staninlowerAL
10+ Years
10+ Years
Posts: 4085
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1 is parts), (1)'57 IH Cub LoBoy w/FH, (2)154 Number Series Loboys, (1 is parts), '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76? Yanmar 2TR15 1500 & Bush Hog SQ42S-2 mower, '78? FORD Dexta, '86 FORD LGT14D & 48" Mower, (3)Cub Cadets & Mowers (MTD), (4) Sears Surburban's, other MTD mowers, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Sears Suburban antique Electric actuator disassembly

Postby staninlowerAL » Wed Dec 02, 2020 5:20 pm

Update on this project: Jim Becker's advice was the key to disassembly, cleaning, soaking, tapping around the tube then holding the base in a vice to unscrew the threaded tube from the base. 1st pic is before investigation, 2nd and 3rd pics are after getting the cover tube removed and freeing up the top anchor point of the jackscrew (the square block at the upper end). Rust was holding the square block so that it could not move. The top end with the hole for attaching the load with a pin was also frozen up with rust. Runs smoothly up and down, have not reassembled/reinstalled it yet but should be OK. Thanks, maybe someone might find this information useful someday.
suburban elec lift1.jpg
suburban elec lift2.jpg
suburban elec lift3.jpg


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