Great Plains TCN5313 Operator Manual - Manual (Page 55)

Great Plains Manufacturing, Inc. Maintenance and Lubrication 51
03/17/2014 566-170M
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 .
Note: 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 ele-
ments.
Note: 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 dif-
ficulty. 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 agen-
cies 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 rec-
ommend 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 elimi-
nate the risk of disease that can result from inhaling non-
asbestos dust.
The following procedures for servicing brakes are recom-
mended to reduce exposure to non-asbestos fiber dust,
Figure 46
Brake Master Cylinder
41998
2
3
3
4
Figure 47
Air System Filter Screen
29592
3
4
5
3
2
5