TM-5-3805-254-14-P-2
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)
JUNE 1980
TM-5-3805-254-14-P-2 - Page 388 of 894
TRUCK SERVICE MANUAL
ENGINE
The drive unit is used to transmit power from engine
Drive
Unit
crankshaft, through camshaft gear, to drive a compressor,
Group 9
fuel pump,
water
pump
and other assemblies.
Usually, repair
consists of replacement of oil seals, bearings or bushings only.
Table 9-1: Drive Unit Specifications - Inch [mm]
Ref.
Worn
New
New
No.
Measurement
Limit
Minimum Maximum
7
Shaft
(Fig.
9-1)
Outside Diameter
1
1.310
1.3115 1.312
[33.27]
[33.312] [33.32]
4
Bushing
(Fig.
9-1)
Inside Diameter
2
1,321
1,312
1.315
[33.55]
[33,32] [33.40]
4
Bushing
(Fig.
9-1)
Out of Round
0.002
[0.05]
5
Shaft
(Fig.
9-2)
Outside Diameter
1
0.499
0.4995 0.5005
[12.67]
[12.687] [12.712]
6-11
Bushing
(Fig.
9-2)
Inside Diameter
2
0.6035
0.501
0.502
[12.789]
[12.73] [12.78]
12
Shaft
(Fig.
9-3)
Outside Diameter
1
0.870
0.8715 0.872
[22.10]
[22.136] [22.15]
13
Collar
(Fig.
9-3)
Inside Diameter
3
0.876
0.873
0.875
[22.25]
[22.17] [22.23]
33
Accessory Drive
End Clearance
0.005
0.010
[0.13]
[0.25]
34
Hydraulic Governor Drive
End Clearance
0.003
0.006
[0.08]
[0.151
Service Tools (Or Equivalent) Required
Service
Tool
Tool Number
Name
ST-850
Puller
ST-1249
Puller
FUEL PUMP DRIVE
Bearings
1.
Bearings
should
be
installed
or
removed
from
housing with an arbor press, using the right size and type
of mandrel or plate.
Pressing should be done on the
race that is press fit.
When bearing is being pressed into
a housing, force should always be applied to outer ring.
384
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