Manual P/N 211.410K
Updated 11292018
15
Flame Pack Series 400 Operation and Service Manual
9.0: Changing Filters
1. PRIMARY FILTER
Change the primary filter in the filter housing a minimum of once a day.
a. Place spring into filter housing, large end down
b. Place the smaller (closed) end of the filter element into the SMALL end of the
spring.
c. Fit the gasket into the upper portion of the filter housing. This will then fit on the
top of the OPEN end of the filter when the top is screwed into place.
Figure 7: Primary Filter
2. INSTALLING THE SECONDARY FILTER (OPTIONAL)
In very dusty conditions, it is advised to use an additional filter element in the intake cone.
Incorrect installation can cause operational malfunctions.
a. Remove plug and screen from the intake cone with the hex key.
b. Install black washer first (make sure it lies flat), then the filter and spring as shown.
c. Remember, the OPEN END OF THE ELEMENT GOES INTO THE CONE FIRST to fit
against the gasket. Install the spring, the SMALL end fitting over the filter. Replace
plug and screen and tighten until its top is flush with the intake cone’s surface.
For information on filter maintenance, see Section 16.
Note that the order in which the parts are installed is the opposite of how they are installed in the Primary Filter
Housing. An easy way to remember the correct order is: the large, open end of the filter ALWAYS points toward
the Flame Pack 400.
Figure 8: Secondary Filter
