PH50B
20195 South Diamond Lake Road, STE 100
Rogers, MN 55374
30
www.maximmfg.com
6. Use a high-quality detergent oil – refer to your engine owner’s manual for oil
requirements.
7. Add oil as necessary to keep oil level as indicated. Detergent oils keep the engine cleaner
and reduce the formation of gum and varnish deposits. Nothing should be added to the
recommended oil.
8. Change the oil after the first 5 hours of operation and every 50 hours there-after or
annually, whichever comes first. Always change oil while the engine is warm. Oil may be
drained through the oil drain port towards the bottom of the engine. Refer to your
Engine Owner’s Manual for complete details.
8.3 Dual Filter Element Air Cleaner
Clean or replace air filter and pre-cleaner every 25 hours or annually, whichever occurs first.
⚠ NOTE: Service more often under dust conditions.
1. Remove the wing nut from the air cleaner cover and remove cover.
2. Remove the wing nut from the air filter and remove the filer.
3. Remove the foam filter from the paper filter.
4. Inspect both air filter elements and replace them if they are damaged.
8.4 Belt Replacement
The drive belt located on the left side of the machine. To replace a worn or slipping belt proceed
as follows:
⚠ DANGER: To avoid possible serious bodily injury, when performing any adjustments, remove
the spark plug wire and place the wire away from the plug to prevent accidental starting.
1. Push the ON/OFF switch, mounted on engine, to the OFF position
2. Make sure control grip is in released position and machine is securely on kick stand.
3. Remove belt guard.
4. Start at the top of 10” pulley and begin removing belt in clockwise direction (facing plow
from left side). If tension on belt is too great the idler pulley may be pulled downward to
relieve pressure on belt.
5. Once belt is off 10” pulley, remove it from smaller pulley.
6. Replace belt by reversing sequence of steps above.
7. Replace belt guard.
8.5 Cleaning
⚠ IMPORTANT: If the engine has been running, allow it to cool for at least half an hour before
washing.
1. Wash the plow, including the underside, after use.
2. Wash the engine by hand and be careful to prevent water or debris from entering the air
cleaner.
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