47 / 54 Snowblower Impeller Installation
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Thread: 47 / 54 Snowblower Impeller Installation

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    Superglidesport's Avatar
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    47 / 54 Snowblower Impeller Installation

    So I decided to change out the UHMW / Plastic Impeller on my 47 snowblower for piece of mind. Not that I've had any trouble with it yet; but have heard some horror stories about these plastic fans going South for various reasons. My old 47 snowblower had the steel impeller and I never did have a problem with it at all. Ordered the replacement impeller, p/n AM109105 from Green Farm Parts and it arrived a few days ago. $252.86 including shipping.

    For some who may be interested, here's what it took to get the job done.

    Remove the snowblower from the quick hitch and roll it forward so the drive shaft is facing up. Remove the safety wire and drive-out the roll pin that retains the implement driveshaft yoke to the drive sprocket shaft:

    Click image for larger version. 

Name:	2014-11-29 14.41.21.jpg 
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ID:	36044

    Remove the implement drive shaft.

    Click image for larger version. 

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Size:	982.2 KB 
ID:	36045

    Loosen the (4) Nuts (1/2" wrench) that secure the drive sprocket shaft bracket, slide the bracket towards the large driven sprocket. This will loosen the drive chain. Remove the drive chain from the driven sprocket.

    Click image for larger version. 

Name:	2014-11-29 14.47.48.jpg 
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Size:	1.06 MB 
ID:	36048

    Loosen the (2) 3/8" square set screws on the driven sprocket hub. Remove the sprocket from the shaft.

    Click image for larger version. 

Name:	2014-11-29 14.49.39.jpg 
Views:	127 
Size:	1.03 MB 
ID:	36049

    Loosen the 5/32" set screw and remove the retainer collar from the shaft.

    Click image for larger version. 

Name:	2014-11-29 14.51.01.jpg 
Views:	128 
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ID:	36050

    Roll the blower back unto its base and remove (3) bolts (1/2" wrench) that attach the auger shaft end bearings at the flange retainers on each side of the blower housing.

    Click image for larger version. 

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ID:	36051 Click image for larger version. 

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    Remove the two bolts that attach the gearbox to the support bracket (1/2" wrench)

    Click image for larger version. 

Name:	2014-11-29 14.57.13.jpg 
Views:	117 
Size:	776.5 KB 
ID:	36055

    You can now remove the auger assembly, gearbox and impeller fan forward and out of the blower housing.

    Click image for larger version. 

Name:	2014-11-29 14.59.09.jpg 
Views:	129 
Size:	878.1 KB 
ID:	36058

    Slide the plastic impeller from the shaft. Remove the shear bolt (7/16" wrench) that attaches the flat bracket to the drive hub and remove the drive bracket.

    Click image for larger version. 

Name:	2014-11-29 15.02.59.jpg 
Views:	117 
Size:	786.7 KB 
ID:	36059

    Loosen the 1/4" set screws that attach drive hub to the main shaft.

    Click image for larger version. 

Name:	2014-11-29 15.09.19.jpg 
Views:	106 
Size:	896.9 KB 
ID:	36060

    This photo shows both impellers for comparison. The steel impeller is considerably heavier than the plastic impeller.

    Click image for larger version. 

Name:	2014-11-29 15.06.24.jpg 
Views:	169 
Size:	747.2 KB 
ID:	36061

    Replace the steel impeller onto the shaft and retain with the shear bolt previously removed. Leave the drive hub set screws loose at this time. Position the auger assembly, gearbox and impeller in front of the blower housing in preparation to reinstall in the unit. It may be helpful to tip the blower housing back unto the rear brackets to make placement and reinstallation easier.

    Click image for larger version. 

Name:	2014-11-29 15.24.41.jpg 
Views:	118 
Size:	709.3 KB 
ID:	36066 Click image for larger version. 

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ID:	36062

    Reinstall the entire assembly into the blower housing. You may need to rotate the impeller to clear the support bracket. Guide the shaft through the rear support bearing at the back of the impeller housing. Install the auger shaft flange bearing spacers by tilting the assembly left to right in order to gain necessary clearance. Reinstall the flange bearing and gearbox retaining bolts. Once all bolts are in place tighten securely to ~ 25 Ft. Lbs. Push the impeller back into the fan housing until it bottoms out and tighten the 1/4" set screws on the drive hub.

    Rotate the entire blower housing forward so the drive end is facing up. Reinstall the shaft retainer collar with the recess facing towards the bearing. Rotate the collar clockwise until it locks, then tighten the 5/32" set screw.

    Reinstall the driven sprocket w. key onto the shaft but do not tighten the set screws. Reinstall the drive chain between the sprockets. Adjust the slack out of the chain by moving the input shaft bracket away from the driven sprocket. Use a small straight edge to align the sprockets. Tighten the driven sprocket set screws using a 3/8" wrench. Adjust the chain tension so there's about 1/8" deflection on each side. Tighten the (4) 1/2" nuts to ~25 Ft. Lbs.

    Install the implement drive shaft yoke with key onto the drive sprocket shaft and reinstall the roll pin. Safety wire the roll pin into place and that's it. Reattach the blower and test it out.

    Had a few other photos to post but reached the maximum of 15 attachments. Hope this helps others who may be interested in replacing their 47 / 54 snowblower impeller. It's not cheap but you can't put a price on reliability and piece of mind, not to mention downtime at the worst possible time.

    Last edited by Superglidesport; 11-29-2014 at 09:48 PM.
    John Deere 3320
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  2. The Following 28 Users Say Thank You to Superglidesport For This Useful Post:

    BarryNWa (02-01-2017), BigJim55 (01-16-2015), ColonyPark (11-30-2014), davidiowa (11-30-2014), dieselshadow (11-29-2014), dkppa (02-24-2015), ErikR (12-23-2017), etcallhome (11-30-2014), fdmars (11-30-2014), felixm22 (11-29-2014), Gizmo2 (12-01-2014), Herminator (11-12-2018), JeffS907 (02-24-2018), jgayman (11-29-2014), johnH123 (11-28-2015), keane (02-26-2015), Keeper (02-20-2016), Kennyd (11-30-2014), kmullen200 (02-18-2016), lost in wisconsin (11-30-2014), Manomet (12-01-2014), nater (11-30-2018), PhntmHappy (02-16-2015), RandyM (11-30-2014), SnoGoDriver (02-05-2019), spud67 (01-12-2015), sterling40man (11-29-2014), wingra (02-27-2016)

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  4. Top | #2
    Superglidesport's Avatar
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    A few additional photos to assist with this project:

    Auger assembly, gearbox and impeller reinstalled into blower housing.

    Click image for larger version. 

Name:	2014-11-29 15.30.32.jpg 
Views:	73 
Size:	816.0 KB 
ID:	36067

    Tightening the shaft retainer collar.

    Click image for larger version. 

Name:	2014-11-29 15.52.08.jpg 
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Size:	789.9 KB 
ID:	36068

    Driven sprocket installed.

    Click image for larger version. 

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ID:	36069

    Aligning sprockets.

    Click image for larger version. 

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    Implement driveshaft reinstalled and safety wired.

    Click image for larger version. 

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    Cleaned up and ready to to reinstall.

    Click image for larger version. 

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ID:	36072

    Ready to work.

    Click image for larger version. 

Name:	2014-11-29 18.11.25.jpg 
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Size:	1.43 MB 
ID:	36073
    John Deere 3320
    eHydro, R4's, 300CX Loader, 61" HD Bucket
    JD Tooth Bar, Deluxe Hood Guard, Ken's Bolt-on Hooks
    485 Backhoe w. 18" HD Bucket
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    Frontier AP12F Forks

    John Deere 2032R
    R3's, 220R Loader, 57" HD Bucket
    Curtis Hard Side Cab & Heater
    62D Deck, iMatch Quick Hitch
    54 Snowblower
    Super HeavyHitch
    Little Wonder "Optimax" & JRCO Blower Buggy
    Fimco 60 Gallon 3PH Boomless Sprayer w. PTO Pump

  5. The Following 6 Users Say Thank You to Superglidesport For This Useful Post:

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Excellent post sir!
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    Quote Originally Posted by Superglidesport View Post
    So I decided to change out the UHMW / Plastic Impeller on my 47 snowblower for piece of mind. Not that I've had any trouble with it yet; but have heard some horror stories about these plastic fans going South for various reasons. My old 47 snowblower had the steel impeller and I never did have a problem with it at all. Ordered the replacement impeller, p/n AM109105 from Green Farm Parts and it arrived a few days ago. $252.86 including shipping.

    For some who may be interested, here's what it took to get the job done.

    Remove the snowblower from the quick hitch and roll it forward so the drive shaft is facing up. Remove the safety wire and drive-out the roll pin that retains the implement driveshaft yoke to the drive sprocket shaft:

    Click image for larger version. 

Name:	2014-11-29 14.41.21.jpg 
Views:	138 
Size:	847.4 KB 
ID:	36044

    Remove the implement drive shaft.

    Click image for larger version. 

Name:	2014-11-29 14.42.46.jpg 
Views:	132 
Size:	982.2 KB 
ID:	36045

    Loosen the (4) Nuts (1/2" wrench) that secure the drive sprocket shaft bracket, slide the bracket towards the large driven sprocket. This will loosen the drive chain. Remove the drive chain from the driven sprocket.

    Click image for larger version. 

Name:	2014-11-29 14.47.48.jpg 
Views:	125 
Size:	1.06 MB 
ID:	36048

    Loosen the (2) 3/8" square set screws on the driven sprocket hub. Remove the sprocket from the shaft.

    Click image for larger version. 

Name:	2014-11-29 14.49.39.jpg 
Views:	127 
Size:	1.03 MB 
ID:	36049

    Loosen the 5/32" set screw and remove the retainer collar from the shaft.

    Click image for larger version. 

Name:	2014-11-29 14.51.01.jpg 
Views:	128 
Size:	920.3 KB 
ID:	36050

    Roll the blower back unto its base and remove (3) bolts (1/2" wrench) that attach the auger shaft end bearings at the flange retainers on each side of the blower housing.

    Click image for larger version. 

Name:	2014-11-29 14.53.32.jpg 
Views:	101 
Size:	696.1 KB 
ID:	36051 Click image for larger version. 

Name:	2014-11-29 14.53.47.jpg 
Views:	111 
Size:	654.8 KB 
ID:	36053 Click image for larger version. 

Name:	2014-11-29 14.56.16.jpg 
Views:	100 
Size:	673.3 KB 
ID:	36054

    Remove the two bolts that attach the gearbox to the support bracket (1/2" wrench)

    Click image for larger version. 

Name:	2014-11-29 14.57.13.jpg 
Views:	117 
Size:	776.5 KB 
ID:	36055

    You can now remove the auger assembly, gearbox and impeller fan forward and out of the blower housing.

    Click image for larger version. 

Name:	2014-11-29 14.59.09.jpg 
Views:	129 
Size:	878.1 KB 
ID:	36058

    Slide the plastic impeller from the shaft. Remove the shear bolt (7/16" wrench) that attaches the flat bracket to the drive hub and remove the drive bracket.

    Click image for larger version. 

Name:	2014-11-29 15.02.59.jpg 
Views:	117 
Size:	786.7 KB 
ID:	36059

    Loosen the 1/4" set screws that attach drive hub to the main shaft.

    Click image for larger version. 

Name:	2014-11-29 15.09.19.jpg 
Views:	106 
Size:	896.9 KB 
ID:	36060

    This photo shows both impellers for comparison. The steel impeller is considerably heavier than the plastic impeller.

    Click image for larger version. 

Name:	2014-11-29 15.06.24.jpg 
Views:	169 
Size:	747.2 KB 
ID:	36061

    Replace the steel impeller onto the shaft and retain with the shear bolt previously removed. Leave the drive hub set screws loose at this time. Position the auger assembly, gearbox and impeller in front of the blower housing in preparation to reinstall in the unit. It may be helpful to tip the blower housing back unto the rear brackets to make placement and reinstallation easier.

    Click image for larger version. 

Name:	2014-11-29 15.24.41.jpg 
Views:	118 
Size:	709.3 KB 
ID:	36066 Click image for larger version. 

Name:	2014-11-29 15.24.11-2.jpg 
Views:	107 
Size:	1,004.0 KB 
ID:	36062

    Reinstall the entire assembly into the blower housing. You may need to rotate the impeller to clear the support bracket. Guide the shaft through the rear support bearing at the back of the impeller housing. Install the auger shaft flange bearing spacers by tilting the assembly left to right in order to gain necessary clearance. Reinstall the flange bearing and gearbox retaining bolts. Once all bolts are in place tighten securely to ~ 25 Ft. Lbs. Push the impeller back into the fan housing until it bottoms out and tighten the 1/4" set screws on the drive hub.

    Rotate the entire blower housing forward so the drive end is facing up. Reinstall the shaft retainer collar with the recess facing towards the bearing. Rotate the collar clockwise until it locks, then tighten the 5/32" set screw.

    Reinstall the driven sprocket w. key onto the shaft but do not tighten the set screws. Reinstall the drive chain between the sprockets. Adjust the slack out of the chain by moving the input shaft bracket away from the driven sprocket. Use a small straight edge to align the sprockets. Tighten the driven sprocket set screws using a 3/8" wrench. Adjust the chain tension so there's about 1/8" deflection on each side. Tighten the (4) 1/2" nuts to ~25 Ft. Lbs.

    Install the implement drive shaft yoke with key onto the drive sprocket shaft and reinstall the roll pin. Safety wire the roll pin into place and that's it. Reattach the blower and test it out.

    Had a few other photos to post but reached the maximum of 15 attachments. Hope this helps others who may be interested in replacing their 47 / 54 snowblower impeller. It's not cheap but you can't put a price on reliability and piece of mind, not to mention downtime at the worst possible time.


    Thanks a lot for taking the time to do this. Not too bad.

    Does the implement drive shaft have to come off to loosen the chain?
    BigJim55 likes this.
    Phil d

    2014 1025r, FEL, 54D mmm, 647 Tiller, 54" Quick Hitch Blower, Power Flow MCS, JD Aeriator, JD Dethatcher.

  9. Top | #5
    Superglidesport's Avatar
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    Phil D,

    No, you do not have to remove the implement driveshaft to either loosen or tighten the drive chain.

    Frank
    BigJim55 likes this.
    John Deere 3320
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    485 Backhoe w. 18" HD Bucket
    Mid-PTO, Front 3 Point Hitch, 366 Front Blade
    Tarter 5' 3PH Tiller
    Frontier AP12F Forks

    John Deere 2032R
    R3's, 220R Loader, 57" HD Bucket
    Curtis Hard Side Cab & Heater
    62D Deck, iMatch Quick Hitch
    54 Snowblower
    Super HeavyHitch
    Little Wonder "Optimax" & JRCO Blower Buggy
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    sterling40man's Avatar
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    WOW! Great thread! Thanks for sharing!
    Bob

    2011 JD 2320, 200CX FEL, 62D MMM, Artillian Pallet Forks, 54" Front Mount Snowblower, Curtis Hard Side Cab, Ballast Box, HF Quick Hitch, 40 Gallon Fimco 3PTH Sprayer,

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    One other quick question. Was the sprocket difficult to get off the shaft once the set screws were removed?
    Phil d

    2014 1025r, FEL, 54D mmm, 647 Tiller, 54" Quick Hitch Blower, Power Flow MCS, JD Aeriator, JD Dethatcher.

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    Your a machine!
    Superglidesport likes this.
    Kevin , JD 2320 Curtis hd cab 62in deck 54in snowblower, lx176 38in deck, XL Cyclone rake, JS63 walk behind, XT 105 trimmer, BR600 All my tools to GIT HER DUNN !!

  13. Top | #9
    Superglidesport's Avatar
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    Quote Originally Posted by Phil D View Post
    One other quick question. Was the sprocket difficult to get off the shaft once the set screws were removed?
    No. It slipped right off.
    BigJim55 likes this.
    John Deere 3320
    eHydro, R4's, 300CX Loader, 61" HD Bucket
    JD Tooth Bar, Deluxe Hood Guard, Ken's Bolt-on Hooks
    485 Backhoe w. 18" HD Bucket
    Mid-PTO, Front 3 Point Hitch, 366 Front Blade
    Tarter 5' 3PH Tiller
    Frontier AP12F Forks

    John Deere 2032R
    R3's, 220R Loader, 57" HD Bucket
    Curtis Hard Side Cab & Heater
    62D Deck, iMatch Quick Hitch
    54 Snowblower
    Super HeavyHitch
    Little Wonder "Optimax" & JRCO Blower Buggy
    Fimco 60 Gallon 3PH Boomless Sprayer w. PTO Pump

  14. Top | #10

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    Quote Originally Posted by Superglidesport View Post
    No. It slipped right off.

    Just ordered my new impeller. No more worries and better throwing distance. I noticed right away the new 54 didn't throw the snow as far as the 47 I had with the steel impeller.
    Phil d

    2014 1025r, FEL, 54D mmm, 647 Tiller, 54" Quick Hitch Blower, Power Flow MCS, JD Aeriator, JD Dethatcher.

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