Exmark 850 Lawn Aerator User Manual


 
Maintenance
Check belt tension after the rst hour of operation
and at least twice during the rst 24 hours of
operation. Adjust as necessary.
Figure 13
48 inch Deck Shown for Reference Only
1. Pulley location for Metro
2. Pulley can be moved to the front position to tighten the
belt when there is no adjustment left in the turnbuckle
(48 inch deck only)
3. Belt guide must be moved to the front position if the
pulley is moved. (48 inch deck only)
4. Turnbuckle
5. 5/16 inch (.79 cm) minimum engagement
6. 5/16 inch whizlock nut
7. Rear Assist Arm Stop
8. Assist Arm
9. Front Assist Arm Stop
10. Point “A”
4. Proper belt tension will require about 10 lb (4.5
kg) side pull on belt, halfway between pulleys (see
Figure 13, item 10–Point A) to deect belt 1/2
inch (12 mm).
5. Check belt guide under the engine deck to see that
it is properly set (see Belt Guide Adjustment
section). Also check the blade brake adjustment
(see Blade Brake Adjustment section).
Mower Deck Belt Routings:
Figure 14
32 inch and 36 inch Mower Deck
Figure 15
48 inch Mower Deck
Blade Brake Adjustment
1. Stop engine and wait for all moving parts to stop.
Engage parking brake. Remove key or spark plug
wire(s).
2. Disengage blades.
3. Make sure the blade brake pad rests against
the sheave. Adjust the spring mounting bolts
to properly align the pad on the sheave (see
Figure 16).
4. Check the distance between the spacer and the
nut at the end of the blade brake rod. The
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