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© 4/2013 ECHO Inc.
MAINTENANCE PB-770 H/T
Air Filter
Level 1.
1. Close choke (cold start position). This prevents dirt from
entering the carburetor throat when the air filter is removed.
Brush accumulated dirt from air cleaner area.
2. Remove air filter cover, air filter, retainer, and foam pre-filter.
Brush dirt from inside cover.
Foam Pre-Filter:
• Clean foam filter in water/detergent solution and rinse with clean water.
• Wrap the filter in a clean, dry cloth and squeeze (do not wring) dry. Allow to dry completely before reuse.
Do not oil.
Air Filter:
• Lightly brush debris from filter.
• Replace filter if it is damaged, very dirty, or the rubber sealing edges are deformed.
• If filter can be reused, be certain it fits tightly in the air filter cavity, and is installed with the original side out.
3. Assemble components in reverse order.
Fuel Filter
Level 1.
Fuel is VERY flammable. Use extreme care when mixing,
storing or handling, or serious personal injury may result.
1. Use a clean rag to remove loose dirt from around fuel cap
and empty fuel tank.
2. Use the “fuel line hook” to pull the fuel line and filter from the tank.
3. Remove the filter from the line and install the new filter.
Note: Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for
sale in the United States to be equipped with a special low permeation fuel supply hose between the
carburetor and fuel tank. When servicing model year 2012 and later equipment, only fuel supply
hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to
$37,500 may be enforced for using an un-certified replacement part.
Parts Required:
REPOWER
TM
TUNE UP KIT.
Parts Required:
REPOWER
TM
TUNE UP KIT.