PS Magazine - TB 43-PS-558
PS, The Preventative Maintenance Monthly
ISSUE 558
MAY 1999
PS 558
26
MAY 99
Mechanics, the nuts
for your dozer’s track shoes have a rounded side and a flat side.
When a track shoe nut is installed upside down—with the rounded side against
the track shoe—vibration will loosen the nut.
That could lead to a thrown track.
To keep that from happening, always install
the flat side toward the shoe.
You have to get the nut tight, too. For the D7-
series, tighten the nuts to 180–260 lb-ft, then
give them another
1
/
3
turn.
For the D8K, tighten the nuts to 200–300 lb-
ft, then give them another
1
/
3
turn.
D7G, D8K Tractors . . .
22-Ton Grove Crane . . .
Joystick No Handhold
O
perators and mechanics, the 22-ton Grove
crane’s swing/auxiliary hoist control lever—the
joystick—is no handhold for climbing into and
out of the cab.
The joystick is not strong enough to support
your weight climbing in and out of the cab. A
busted joystick puts your crane out of action un-
til a new one is installed. With that new joystick
comes a $410 bill.
Instead, use the handholds attached to either
side of the cab door.
Install flat side of nut toward shoe
OH,
NUTS!
you can
say that
again
!
PS 558
26
MAY 99
Use handholds, not joystick
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