M108S Trimmer 50 Hour Maintenance
Once a season, give the exterior of your trimmer a good cleaning. Use a mix of water and dish detergent on the string trimmer head to clean off any grease, dirt and debris. Locate the air filter cover and remove it to make sure the air filter is clean. Replace it approximately every 90 days, based on wear and tear. .Perform the 50 hour preventative maintenance on the trimmer.
M108S Trimmer 50 Hour Maintenance
Once a season, give the exterior of your trimmer a good cleaning. Use a mix of water and dish detergent on the string trimmer head to clean off any grease, dirt and debris. Locate the air filter cover and remove it to make sure the air filter is clean. Replace it approximately every 90 days, based on wear and tear. .Perform the 50 hour preventative maintenance on the trimmer.
Underside
Remove dust and other particulate that may have accumulated inside the E-box of the machine. To access this area, remove the 6 screws from the site panel and use compressed air and a vacuum to remove the particulate.
Check ‘hockey stick’ to ensure that it is in good working condition and not bent.
Check trim tote engagement levers and rails to ensure that a proper seal is achieved when the trim tote is installed.
Source: AZ Revlon (Community Member)