Do not pry cover (11) from body (8). If necessary, tap on cover with wooden mallet to loosen
Remove cover (11) and o-ring (12).
Lift element (13) from valve body (8) and remove o-rings (14 and 15).
Repair. If bypass valve has failed, the element (13) should be replaced. Inspect o-rings (12 and 14) and replace
them if their sealing capabilities are questionable.
Assembly and Installation.
Lightly lubricate o-ring (14) with oil and install o-ring on element (13).
Lightly lubricate o-ring (15) and install in body (8). Install element (13) in body.
Lightly lubricate o-ring (12) and install on cover (11).
Install cover (11) on body (8) and secure with screws (9) and lockwashers (10).
Remove the assembled valve (4) from vise and install piping assemblies (5, 6 and 7).
Position valve with piping assemblies and tighten union nuts (1, 2 and 3).
4-7.3 Air Filter Assembly.
4-7.3.1 Air Cleaner. (Figure 4-21D.)
Loosen wing nuts (1) and swing the retaining rods (2) out of the brackets.
Remove cup assembly (3) from air cleaner.
Loosen and remove element wing bolt (4) and remove element (5) from air cleaner housing (6).
Check that the ejection valve (7) is not damaged or missing. Replace if necessary.
To clean the element (5), first use low pressure compressed air and blow through the paper from inside to
remove excess dust. Keep air nozzle at least one inch away to avoid damaging the paper.
Soak the element in a lukewarm, non-foaming detergent solution for 15 minutes. Using clean water, rinse
repeatedly to remove all traces of detergent and dirt from between the paper pleats. Never use solvents, fuel
oils, or gasoline to clean an element.
Shake excess water from element. Never use compressed air on a wet element. Allow it to dry thoroughly in a
dust free area with the gasket end down. NOTE No more than six washings are recommended.