PS Magazine - TB 43-PS-619
PS, The Preventative Maintenance Monthly
ISSUE 619
JUNE 2004
Hydraulic Hose Rub
Lift
cylinder
hydraulic hoses
rub against the
steel lines to the
bucket clam cylin-
ders. As the hoses
wear
through,
they weaken and
burst.
PS 619
JUN 04
23
JUN 04
22
MW24C Scoop Loader…
The PM Scoop
Air Chamber Clamp
Vibration loosens nuts and bolts that hold the brake
actuator air chamber clamp together. When that happens,
air leaks from the chamber. No air means no brakes.
So grab the clamp and see if it’s loose. If it is, get your
mechanic to torque the nuts to 70-80 lb-ft. Between
scheduled 250-hr services, look for loose nuts, shiny
spots or rust around the bolt heads and nuts on both the
front and rear air brake chambers. If you spot any, report
them to your mechanic.
•
Use two wrenches to
keep from twisting the
hose when loosening the
connection on the upper
hose for each forward
lift cylinder. It takes a
1 1⁄4-in and a 1 3/16-in
open-end wrench to
loosen the connection.
•
Get a buddy to hold the hose about an inch from the steel line while you tighten
the connections.
•
If a hose is worn through its outer cover, replace it.
•
Paint any bare spots on the steel lines.
MW24C Scoop Loader Bushing
Use NSN 3120-00-165-5947 to get the mounting bushing for the scoop loader’s
hydraulic lifting cylinder. This NSN replaces the parts info shown as Item 30,
Fig 145 of TM 5-3805-262-24P.
621B Fuel Shutoff Cable
NSN 3040-01-214-9215 gets the 621B scraper’s emergency fuel shutoff cable
and handle assembly. The NSN is missing from TM 5-3805-248-14&P-4.
Good PM will
keep your scoop
loader scoopin’
dirt for years
to come.
He
should’ve
checked
those
brake
clamps!
To prevent hose
damage, reposition
each hose so it’s
about an inch away
from the steel line.
Here’s how…
Hose worn
through to
steel braid
can rust
and burst
Use 2 wrenches to loosen
or tighten hoses
Tighten
nuts to
70-80
lb-ft
619. 22-23 (C)
4/30/04
10:13 AM
Page 1
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