PS Magazine - TB 43-PS-679
PS, The Preventative Maintenance Monthly
ISSUE 679
JUNE 2009
48
PS 679
JUN 09
S
afety and PMCS go hand-in-hand with the Case backhoe loader. For tip-top
backhoe operations, keep these pointers in mind before and during the day’s work.
You’ll ±nd this info in WP 0012-8 and 0012-9 of TM 5-2420-231-10.
Draw the Line
A good rule of thumb before you start digging is to extend the backhoe boom and
draw a line in the dirt. This line forms a half circle that’s almost 18 feet from the back
of the vehicle. This half circle acts as a “danger area” warning, reminding personnel
to stay out of your work area.
Moving the Bucket
Do
not
back±ll a trench with the backhoe by swinging its bucket against soil.
This type of movement causes unnecessary wear and tear that damages the bucket
and boom.
You’ll also want to use some TLC when moving the backhoe completely to the
side. In some positions, the backhoe will bump into the vehicle’s stabilizers. Too
much bumping will damage the stabilizer’s hydraulic cylinders.
O
perators, the edge of the blade is
hard to see when you’re inside the
130G grader cab with add-on-armor.
Here’s how to solve the problem.
Get your CO’s approval to have
your mechanic paint the blade’s back
edge with orange or yellow paint.
That way you’ll have a visual cue of
where the blade is, especially when
it’s turned near the cab steps.
Backhoe Loader…
130G AOA Grader…
Paint
Blade Edge
Orange
orange
paint
helps you
see the
blade
edge!
here’re some
digging tips
to keep in mind
before the
day’s run!
Make sure
you draw
this
line!
CORRECT
WRONG
WRONG
Correct trenching method
679.48-49.indd
1-2
5/4/09
5:32:50 PM
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