PS Magazine - TB 43-PS-558
PS, The Preventative Maintenance Monthly
ISSUE 558
MAY 1999
PS 558
25
MAY 99
If point
touches
between
teeth—
get drive
sprocket
replaced
Use these
gauges
D7G Tractors . . .
D5B, D7G and D8K Tractors . . .
Open Air Flow
Any dirt or mud caked on the dozer’s
fan blade screen stops air flow that car-
ries heat away from the radiator.
Blocked air flow also leads to over-
heating of the engine and transmission.
Clean off dirt or mud with low-
pressure water or air.
Grease Fitting Reminder
One grease fitting that’s often over-
looked during scheduled services is the
one that lubes the fan pulley bearings.
It’s hidden behind the fan blades.
Without lube, the bearings seize
up. Then the blade stops turning freely,
letting the engine and transmission
overheat.
Keep the fan pulley bearings lubed.
During scheduled services, give all the
fittings four to five pumps of grease.
Gauge the sprockets every 1,000
hours or when you can no longer ad-
just the track.
Here’s how to gauge the sprockets:
* Set the point of the gauge marked for
your tractor between the teeth of the
drive sprocket.
* If the point doesn’t touch, the
sprocket’s OK.
* If the point touches, the sprocket’s
shot. Get support to replace it.
is it
just
me
, or
is it
hot
out
here?
orn drive sprocket teeth can let the
track on your dozer jump right off the
sprocket. That leaves you with a dozer
in need of some serious “dental” work.
Check your dozer’s teeth right now.
Use a drive sprocket gauge to measure
sprocket wear. Order a gauge to mea-
sure the D5B’s sprockets with PN
5P8616 and CAGE 11083 from RIC
S9C on a DD Form 1348-6. NSN 5210-
01-225-1132 gets a gauge for the D7G
and D8K dozers.
but i
just saw
the
dentist
.
we'd
better
check those
teeth
!
Lube fan pulley bearings
Clean off caked mud
perators, if you want to keep your D7G cool on the job, remember the fan at
PM time.
Back to Top Back to Top
