PS Magazine - TB 43-PS-568
PS, The Preventative Maintenance Monthly
ISSUE 568
MARCH 2000
perators, a few grease fittings on
the SEE are often overlooked at lubing
time. Some of them are right under
your nose, but others are hard to find
without the help of LO 5-2420-224-12
or the lube plate on the backhoe.
Bucket and Boom
Control levers for the vehicle’s boom
and bucket get a constant workout dur-
ing construction operations. When a
lever becomes hard to pull or push, it
needs lube.
The grease fitting for both of these
levers is next to your right hand when
you’re sitting in the driver’s seat. It
gets overlooked simply because it’s
inside the cab.
Small Emplacement Excavator . . .
Plate Cover-up
Some paint shops have an annoying
habit of spraying over the backhoe’s
lubrication plate. The plate is a quick
reference for all the backhoe’s lube
points.
Use some duct or masking tape to
cover the plate before the vehicle goes
off to the paint booth.
If your SEE’s lube plate gets painted,
get a new one with NSN 9905-01-341-
8183.
Lowdown on Tilt Cylinder
Another fitting that’s often forgot-
ten is the one for the backhoe’s tilt
cylinder.
It’s “in the dark” when the backhoe
is in the transport position. With the
backhoe up, the fitting is easy to find.
Pumping in too much lube will split
open the ball joint’s rubber torsion boot.
A split boot means lube leaks out and
water gets in. Water can rust the ball
joints.
Without lube, the pivot arm’s bear-
ing can seize, causing the backhoe to
bind. That means you can’t excavate.
Go Easy on the Lube
Make sure you read and heed the
CAUTION in Note 18 of the LO when
it’s time to lube the grease fittings for
the front and rear thrust ball joints.
Give each fitting only four or five
pumps of lube from a hand-held grease
gun.
Cover lube plate with
tape before painting
Don't overlook tilt
cylinder's fitting
Backhoe Pivot Arm
One of the grease fittings on the
backhoe that’s missed is the one that
lubes the backhoe’s dipper pivot arm.
That’s because the fitting is out of sight
under the bend (pivot) in the arm.
Lube control levers in cab
Keep pivot arm lubed
Lube front and
rear thrust ball
joints carefully
uugh.
..
this control
lever is a
bear
to
pull
!
PS 568
25
PS 568
24
MAR 00
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