TM-9-2320-285-24-2
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-2 - Page 403 of 698
TM 9-2320-285-24-2
3-35.
BODY AND CAB MAINTENANCE (CONT)
j. Cab Tilt (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
TILTING CAB TO 90 DEGREES (cont)
5
Tractor,
a.
Cab and deck
Pull forward
front
b.
Safety bar (2)
Lift
Raise out of first notch,
past second notch, until
downward weight of cab is
supported entirely by
come-a-long
6
5th wheel
Come-a-long (15)
a.
Release
Gradually release until cab
boom
is tilted 90 degrees, and
safety bar (2) rests in
third notch
b.
Check
Come-a-long must be slack,
with all weight of cab and
deck resting on safety bar
c.
Remove
From tractor
LOWERING CAB TO 45 DEGREES
1
Cab deck,
One come-a-long
Attach
To bracket (16)
left side
(15) hook
2
5th wheel
Come-a-long (15)
Attach hook
To crossmember (17)
boom
NOTE
Four personnel are required to perform the following step.
3
Tractor,
a.
Cab and deck
Hold forward
Prevents cab from falling
front
back to 45 degree position
b.
Come-a-long
Tighten
Raise cab from 90 degree to
(15)
45 degree position
c.
Cab and deck
Release
After safety bar (2) drops
into its first notch
4
Frame rail,
a.
Safety bar (2)
Check
All weight of cab must rest
right side
on safety bar, and come-a-
long must be slack
b.
Capscrew (1)
a.
Seal
Apply thread sealant
threads
b.
Install
On safety bar; tighten
3-397
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