TM 5-3805-255-14
0101
FAN MOUNTING ASSEMBLY CONTINUED
3. Slide friction bearing (Figure 6, Item 8) inside friction disc (Figure 6, Item 6) on coupling flange/pulley assembly
(Figure 6, Item 9) until friction bearing is against shoulder.
4. Slide friction disc (Figure 6, Item 6) to shoulder making sure friction bearing (Figure 6, Item 8) stays inside fric-
tion disc.
5. Install fan mounting flange (Figure 6, Item 7) over friction bearing (Figure 6, Item 8) with fan pilot up.
6. Install other friction disc (Figure 6, Item 6) on end of friction bearing (Figure 6, Item 8).
NOTE
If pressure plate tangs do not slide easily through keyways, replace pressure plate.
7. Install pressure plate (Figure 6, Item 5), with tang in keyway, on coupling flange/pulley assembly (Figure 6,
Item 9).
CAUTION
Use only the correct Belleville springs when rebuilding fan mounting assembly. Single
Belleville springs used on early model fan drives have different spring rates and do not
compensate for friction disc wear, causing premature failure. Belleville springs must be
installed opposite each other, otherwise, premature wear and failure of friction discs will
occur. Failure to follow this caution can lead to serious damage or failure of fan clutch.
8. Install Belleville spring (Figure 6, Item 3), concave side up, on coupling flange/pulley assembly (Figure 6,
Item 9).
9. Install Belleville spacer (Figure 6, Item 4) on coupling flange/pulley assembly (Figure 6, Item 9).
CAUTION
Belleville springs must be installed opposite each other, otherwise, premature wear and
failure of friction discs will occur.
10. Install other Belleville spring (Figure 6, Item 3), concave side down, and spacer (Figure 6, Item 2) on coupling
flange/pulley assembly (Figure 6, Item 9).
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