PS Magazine - TB 43-PS-680

PS, The Preventative Maintenance Monthly

ISSUE 680

JULY 2009
PS Magazine - TB 43-PS-680 - Page 11 of 33
18
PS 680
JUL 09
It’s all right if you don’t have
these exact NSNs. The important
thing is that the parts fit snugly and
have a protective coating on them
so they don’t chafe the lines.
Also, make sure the hose clamps
are the same diameter as the hoses
to avoid slippage. Finally, secure the
ABS cable back to one of the CTIS
hoses with a zip tie after installing
the clamps.
SSG John E. Bascovsky
137th QM Co.
Iraq
Editor’s note:
This tip extends the life of your FMTV’s
CTIS air brake lines. Thanks, Sergeant Bascovsky.
1.
Start the APU.
2.
Make sure the trailer is parked on level ground with no side slopes.
3.
Set the platform height at 43 inches and the gooseneck height at 63 inches.
4.
Shut down the APU.
Here’s how to get a good hydraulic fluid level reading:
W
hen checking the auxiliary power unit (APU) hydraulic reservoir level on the
semitrailer’s gooseneck, a lot of operators just take a quick look at the indicator tube.
Being in a hurry can lead to trouble, especially if you’re parked on uneven ground
or the trailer’s platform or gooseneck height is off. Either one could mean you get a
FULL reading even if the hydraulic fluid level is low or high.
Too little fluid and you can’t raise or lower the trailer. Too much fluid can
blow seals.
Now it’s OK to check the hydraulic reservoir
fluid level. The fluid in the indicator tube
should measure within the FULL range on the
reservoir’s decal. If the decal is missing or too
damaged to read easily, get your mechanic to
replace it with NSN 7690-01-357-4882.
A reservoir that’s too full should be
drained following the instructions starting on
Page 4-69 of TM 9-2330-381-14 (Nov 94 w/
Ch 4, Apr 08). If the reservoir is low, add fluid
following the instructions that start on Page
4-67 of the TM.
M1000 HET
Semitrailer…
Check APU Reservoir
the Right Way
Solution looks like this
Make sure
platform
height is
43 inches…
…and
gooseneck
height is
63 inches
Indicator tube fluid
level in FULL range?
the apu
hydraulic level
checks out!
you sure?
this incline
could be
throwing off
the reading!
43”
63”
680.18-19.indd
1-2
6/2/09
10:50:29 AM
SSG J.E.B.
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