PS Magazine - TB 43-PS-560
PS, The Preventative Maintenance Monthly
ISSUE 560
JULY 1999
PS 560
26
JUL 99
Each cover sits over a thermal switch
that turns on a fan that cools the hy-
draulic fluid used to operate the SEE’s
backhoe and attachments.
Stepping or sitting on a cover presses
down on the switch and can break it.
Then you have no fan and no cooled
Small Emplacement Excavator . . .
To help prevent future problems,
stencil
No Step
on the covers.
Check wires and terminals
fluid. Hot oil can blow a hydraulic line
or seal.
If the fans are not starting or stop-
ping during operations, shut down the
SEE. Your mechanic will remove the
cover and eyeball the switches for bro-
ken wires or bent wire terminals.
Pages
4-147 to 4-149 of TM 5-2420-224-
20-2 tell how to reconnect the wires or
replace a thermal switch.
Remove covers to check for damage
he protective covers on the control
tower of the SEE’s hydraulic oil cooler
are not seats or steps. When they are
used that way, you end up with an
NMC SEE.
that
puts me
out
of
action
!
yeouch!
PS 560
26
JUL 99
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