Re: 826LE Power Max Snowthrower_ Drive belt keeps coming...
Part # 94-8812 is traction belt 106-4498 auger belt
There is a service bulltin on this I have not seen this yet, Ill paste it for you to look at .
this was issued dec 22-2003 you would think that it would have shown up as a problem by now.
UNITS AFFECTED: Model Number(s): Serial Number(s): 38620 240000001-240999999 38621 (Int'l.) 240000001-240999999 38632 240000001-240999999 38635 (Int'l.) 240000001-240999999 38642 240000001-240999999 38645 (Int'l.) 240000001-240999999 38652 240000001-240999999
SUBJECT: Traction belt jumps off the pulley. SITUATION: Incorrect pulley alignment causes the traction belt to jump off, usually when the drive is disengaged or as a hill is crested. CORRECTION: 1. Remove the belt cover, engine belt guide and the bolt securing the crankshaft pulley. 2. Remove the auger brake assembly. 3. Remove the crankshaft pulley and the auger belt. 4. On the left side of the machine, remove the hair pin cotter from the speed control link and slide the link out of the pulley pivot assembly. The traction belt can now be removed. 5. Shorten the pulley half nearest the engine (PN 106-7334) shown in Fig 1. Grind or machine 1/8” (.125”/3.2mm). from the hub end of the pulley. The new finished length of the pulley half should be 1.07” (2.7cm). 6. Chamfer the bore to ensure the pulley fully contacts the shoulder on the crankshaft. You can send the pulley to an outside machine shop if you do not feel that you can modify the pulley in house. 7. Reinstall the pulley with a new traction belt. A. Chamfer edge after grinding/machining. B. Remove 1/8”. C. Masking tape used as a reference line. 8. With the engine off, engage both the traction and auger levers and inspect the alignment of both the auger and traction belt idler pulleys (Fig. 2). Since we have moved the crankshaft pulley it may be necessary to bend the idler arms slightly to center the belts. Adjust as needed. 9. Install the engine belt guide and test operate. 10. Install the belt covers.
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Most accessory drive belts have an idler pulley that tensions the belt. The idler pulley either has s 1/2 inch square drive hole or some other way to apply force to counteract the spring. Identify the idler pulley and push it in the direction to loosen the belt, then remove it.
1. Remove the belt cover with a socket wrench. Slide the belt cover off and set it aside.
2. Remove the two belt cover stud bolts with a socket wrench to get to the auger belt guide.
3. Remove the belt guide with a socket wrench.
4. Push down on the belt tensioner pulley with your hand. Remove the old belt and set it aside.
5. Install the new belt and release the belt tensioner pulley to tighten the belt.
6. Re-install the belt guide with a socket wrench and tighten the bolt.
7. Re-install the two belt cover stud bolts and tighten with a socket wrench.
8. Re-install the belt cover and secure it with the cover bolts. Tighten the bolts with a socket wrench.
I pulled the following from a snaper model similar to yours.
The snowthrower has two drive belts, one for the traction
drive-which transmits engine power to the wheels, and
a second for the auger drive-which transmits engine
power to the auger mechanism.
Each of these drive belts are of special construction and
should be replaced only with genuine replacement belts
which match the original equipment belts. These are
available from your dealer.
Traction Drive Belt Replacement I pulled the following from a snapper model similar to yours. Believe it should help.
1. Disconnect spark plug wire and fasten it away from
the spark plug.
2. Remove belt cover. (Located in back of the discharge shute).
3. Pull the traction drive belt idler pulley arm (See
Figure 24) away from the belt to relieve tension, and
slide the belt off the engine pulley.
4. Slip the belt off from around the traction pulley (See
Figure 29) and pull the belt out of the unit between
the auger pulley and the traction pulley (the lower
cover need not be removed for this step).
5. Reverse the procedure to install the new belt. Be
sure there are no twists in the belt, and that the belt is
properly seated in the pulley grooves.
6. Replace the belt cover.
7. Start the unit, and check the traction drive for proper
operation. See "Traction Clutch Cable Adjustment"
for adjustment procedures.
There are also several videos on YouTube on changing snowthrowr belts. (Didn't see one for your blower, but most similar and should provide a good starting reference).
Double check the routing diagram. Check to make sure your idler pulleys are in good condition. Bearings are good. Lastly the tension spring may be worn. The belt should fit very snug. No more than 1 1/2" of deflection when you push on the belt with your thumb
Its likly the belt is OK the problem is there is on idler pulley that has an adjustment so when the augers are engaged it puts force on the belt witch tightens and makes every think turn and when disengaged every stops turning. There is always an adjustment involved with this. If you can remove the belt then with the mechine not running of corse engage the drive and watch how it fucnitions then look for the adjustment that would move the idler closer or further away from the belt
A/C Compressor Drive Belt Idler Pulley Adjustment Bolt (If equipped) (Part of 8678)
A/C Compressor Drive Belt Idler Pulley Tensioner Bolt (If equipped) (Part of 8678)
A/C Compressor Drive Belt Idler Pulley (If equipped)
A/C Compressor Drive Belt (If equipped)
A/C Clutch Pulley (If equipped)
Generator Adjustment Bolt
Generator Locking Bolt
Generator Drive Belt
Water Pump and Power Steering Pump Drive Belt Adjustment Bolt (Part of 8678)
Water Pump and Power Steering Pump Drive Belt Idler Pulley
Water Pump and Power Steering Pump Drive Belt Idler Pulley Locknut (Part of 8678)
Power Steering Pump Pulley
Water Pump and Power Steering Pump Drive Belt
Water Pump Pulley
Tighten to 16-20 Nm (12-15 Lb-Ft)
Tighten to 33-37 Nm (24-28 Lb-Ft)