Periodical Checks - YAMIT AF-9800N Series Service Maintenance Manual

6.8 - Periodical Checks

Perform yearly Periodical Checks at the beginning of the season, according to the
following instructions:
1. Check the condition of the coarse screen. If defective, replace according to
"Coarse Screen Removal & Installation".
2. Check the condition of the fine screen assembly. If defective, replace according to
"Fine Screen Assembly Removal & Installation".
3. Check seals condition. Lubricate with silicon grease.
4. Remove the dirt collector according to "Dirt Collector Removal & Installation"
and check the dirt collector suction nozzles height (see table). If defective, screw
out the nozzle and replace with a new one.
5. Check condition of the bearings, replace if damaged or deformed.
6. Remove the Piston according to "piston removal & installation" check its
condition, clean it from sediments and replace seals if required.
7. Check existence of grease on the motor axis.
8. Check the filter housing for paint damage and corrosion. If required, clean area
with sandpaper and apply a thin layer of basic + epoxy paint.
9. Check for leaks.
Dirt Collector Suction Nozzles Height Table
Type Number
AF9800" 3", 4", 6", 8" & 10"
24
X(Nozzle Height)
76.5 mm
AF9800N