Alpina AN 622 SNOW THROWER [50/112] English
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Alpina AN 622 SNOW THROWER [50/112] English

Alpina AN 622 SNOW THROWER [50/112] English
50
ENGLISH
EN
7.3 WORM GEAR
The worm gear if filled with special lubricant at the factory.
Refilling is not normally required.
Loosen the plug once a year and check if the worm gear
contains lubricant (fig 14).
If it is leaking or has been repaired it must be refilled with
lubricant. The worm gear holds 92 grams of lubricant at the
most.
Use Shell Darina 1, Texaco Thermatex EP1, Mobiltem 78,
Benalene #372 Grease or similar.
7.4 HEXAGONAL SHAFT
The hexagonal shaft, chain sprocket and chains are not to be
lubricated. All bearings and bushings are permanently
lubricated and require no maintenance.
Lubricating these parts will only result in the grease getting
on to the friction wheel and disc drive plate, which could
damage the rubber clad friction wheel.
For long time storage the above-mentioned parts should be
lightly wiped with an oily rag to prevent rust.
8 SERVICE AND REPAIRS
No service must be carried out before:
The engine has stopped.
The ignition key has been removed.
- The starting cable has been disconnected from
the spark plug.
If the instructions say that the machine is to be lifted at the
front and rested on the auger housing then the petrol tank
must be emptied.
Empty the petrol tank outdoors when the engine is
cold. Do not smoke. Empty into a container
designed for petrol.
8.1 ADJUSTING THE SCRAPER BLADE
The scraper blade gets worn after a lot of use.
Adjust the scraper blade (always together with the shoes)
The scraper blade is reversible so can be used on both sides.
8.2 ADJUSTING THE DRIVE BELTS
The drive belts should be checked (and adjusted if required)
for the first time after 2 – 4 hours use and then the middle of
each season. They should thereafter be checked twice a year.
When the belts are adjusted or changed, the control wires
must also be adjusted (see below).
8.2.1 THE DRIVE BELT FOR DRIVING (A in Fig. 15)
The belt has a spring-loaded tension pulley. Adjustment is
not required. If the belt slips, change it.
8.2.2 THE AUGER DRIVE BELT (B in Fig. 15)
1. Remove the belt protective cover (1) by loosening the
screws (2). See fig. 16.
2. Loosen the tension-pulley (C) and move it about 3mm
towards the belt (fig. 17).
3. Tighten the tension pulley nuts.
4. Check the belt tension by pressing down the auger clutch
lever. With a finger, you should be able to push the belt
about 12 - 13mm without any great power (fig 18).
5. Repeat the above procedure if further adjustment is
required.
6. Reassemble the belt protection. See fig 16.
8.3 REPLACING BELTS
The belts are specially designed for this machine. They must
be replaced by new genuine belts provided by your retailer or
authorised service station.
When the belts are adjusted or replaced, the control wires
must also be adjusted (see below).
8.3.1 THE AUGER BELT
1. Remove the spark plug protection.
2. Loosen the screws (3) and dismantle the bottom plate (2).
See fig 19.
3. Remove the belt protective cover (1) by loosening the
screws (2). See fig. 16.
4. Loosen the belt guide (D) at the engine belt disc. See fig.
15.
5. Remove the tension pulley (C) from the belt. See fig. 15.
6. Replace the belt (E in fig. 15). NOTE! Only genuine GGP
belts are to be used.
7. Adjust the belt tension according to the above
instructions.
8. Assemble the belt guide (D) in fig 15.
9. Adjust the belt tension according to the above
instructions.
10. Reassemble the belt protection.
11. Adjust the control wire according to the below
instructions.
8.3.2 THE DRIVING BELT
1. Carry out items 1-5 above.
2. Remove the locking ring (17) from the swing plate shaft
(18). See fig 22. Pull out the shaft so that the swing plate
(20) can tip forward. See fig 22.
3. Remove the spring (16 in fig 22).
4. Replace the belt (13 in fig. 22). NOTE! Only genuine
GGP belts are to be used.
5. Check that the tension pulley (12) is in line with the belt
(13). See fig 22.
6. Reassemble the spring (16), shaft (18) and locking ring
(17).
7. Check that the underside of the disc drive plate (20) is
situated between the marks (19). See fig 20.
NOTE! If the machine still does not drive properly,
recheck the location of the disc drive plate (20).
8. Adjust the belt tension according to the above
instructions.
9. Assemble the belt guide (D) in fig 15.
10. Adjust the belt tension according to the above
instructions.
11. Reassemble the belt protection. See fig 16.
8.4 ADJUSTING THE BELT GUIDE
1. Remove the spark plug protection.
2. Remove the belt protective cover (1) by loosening the
screws (2). See fig. 16.
3. Activate the auger clutch lever (13 in fig 8).

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