Rev. 10/19 © 2015 McNeilus Truck and Manufacturing, Inc.
4
2.0
Achieving the best filtering efficiency
1. If not using the quick disconnect model, in order to ensure the proper cleaning of the reservoir fluid, position
the ends of both the inlet and the outlet hose or wand as far apart as possible inside the reservoir preferably on
different sides of the existing baffles.
2. Cycle the hydraulic system thoroughly in order to flush the contaminated fluid from the lines and system
components so all the fluid in a system will be filtered through the MFS.
3. Operate the MFS until the total volume of the system fluid passes through the MFS. Cycle the reservoir fluid
through the MFS six to eight times to insure the total system fluid is filtered completely.
3.0
Removing elements from the K9 housing
Equipment required: 1 ½” box end or socket wrench, a container to hold dirty elements and fluid from the filter
housing, and a small cup of grease.
1. Remove filter housing cap using the 1 ½” wrench and inspect the O-ring(1264144).
2. Remove element(s), compression spring and spring plate. Separate elements (if there are stacked elements)
and retain the element connectors. Discard the elements.
3. Drain K9 filter housing.
3.1
Installing new or cleaned elements
1. Lubricate grommets located at each end of the replacement element(s).
NOTE: DO NOT USE GREASE LUBRICANT IF FIRE RESISTANT FLUIDS ARE UTILIZED IN THE SYSTEM.
2. If required, install connectors between elements. Then install spring plate and compression spring.
3. Install element(s) into the filter housing, making sure elements are positioned correctly on the bushing in the
porting head.
4. Secure filter cap to filter housing using the 1 ½” wrench.
NOTE
Filter elements require changeout when the
Dirt Alarm is registering in the red area.
