GREAT PLAINS TCN5107, Operator'S Manual, Page: 57 / 78

TCN5107-5313 Table of Contents Index Maintenance and Lubrication
Great Plains | 566-170M | 04/26/2019 Table of Contents Index 51
Clean filters seasonally; more often in dusty conditions.
1. Move the machine to a sheltered area, to prevent
unfiltered dust from entering the opened air system.
Do not remove the valve system to clean filters. Caps must be
on bottom of filter when removed.
2. Use a 33mm (1
9

32
in) open-end or adjustable wrench to
loosen both red filter caps .
 There is generally insufficient clearance between the
filters for a socket or box-end wrench.
3. Carefully remove the cap from one filter. Be ready to
catch the filter screen when it falls free.
Handle the filter screen element very gently. Great Plains
offers only complete replacement filters, and not screen
elements.
 The inside diameter of the screen is the inlet side. The
screen is entirely welded stainless steel.
4. Using gentle compressed air, or a soft brush and
compatible cleaning fluid, remove debris from the screen.
Dry thoroughly.
5. The cap is a debris sump. Clean it with air, or water and
mild detergent. Clean and inspect the O-ring . Dry the
cap if wetted.
6. Center the filter screen on the cap. Carefully re-insert in
filter body. Screw cap in, checking for mis-alignment or
binding of filter element. Tighten cap gently with wrench.
7. Repeat step 3 through step 6 for the other filter.
Brake Drum and Liner Maintenance
Great Plains recommends having brakes serviced by trained
and fully equipped brake technicians.
Non-Asbestos Fibers Hazard:
Most recently manufactured brake linings are asbestos-free.
However, non-asbestos brake linings may contain one or more
of a variety of ingredients, including glass fibers, mineral
wool, aramid fibers, ceramic fibers and silica that can be
health risks if inhaled.
Scientists disagree on the extent of the risks from exposure to
these substances. Exposure to silica dust can cause silicosis, a
non-cancerous lung disease. Silicosis gradually reduces lung
capacity and efficiency and can result in serious breathing
difficulty. Some scientists believe other types of non-asbestos
fibers, when inhaled, can cause similar diseases of the lung.
Silica dust and ceramic fiber dust are known to the State of
California to cause lung cancer. U.S. and international
agencies have also determined that dust from mineral wool,
ceramic fibers and silica are potential causes of cancer.
For silica, OSHA has set a maximum allowable level of
exposure of 0.1 mg/m
3
, 8-hour time-weighted average. Some
manufacturers of non-asbestos brake linings recommend that
exposures to other ingredients be kept below 1.0 f/cc, 8-hour
time-weighted average.
Scientists disagree, however, to what extent adherence to these
maximum allowable exposure levels will eliminate the risk of
disease that can result from inhaling non-asbestos dust.
The following procedures for servicing brakes are
recommended to reduce exposure to non-asbestos fiber dust, a
cancer and lung disease hazard. A Material Safety Data Sheet
(MSDS) is available from Federal Mogul Friction Products,
U.S. telephone (540) 662-3871. Request MSDS WNRE-05-
155-4.
Figure 46
Brake Master Cylinder
41998
2
3
3
4
Figure 47
Air System Filter Screen
29592
3
4
5
3
2
5