TABLE OF SPECIFICATIONS, NEW CLEARANCES AND WEAR LIMITS

TABLE OF SPECIFICATIONS, NEW CLEARANCES AND WEAR LIMITS - Continued

Maintenance Manual For Crane, Truck Mounted Hydraulic 25 Ton (CCE) - Vol 3 Page Navigation
145

TM 5-3810-300-24&P-3

Specifications

1.0

ENGINE PARTS (Standard Size, New)

MINIMUM

MAXIMUM

LIMITS

Camshaft and Balance Shaft Bearings

Inside diameter:

Front and rear.......................................................

1.5000"

1.5010"

Center and intermediate .......................................

1.5010"

1.5030"

Clearance--bearing-to-shaft:

Front and rear.......................................................

.0025"

.0040"

.0060

Center and intermediate .......................................

.0025"

.0050 "

0090."

Outside diameter:

Front and rear.......................................................

2.1880"

2.1885"

Center and intermediate .......................................

2.1840"

2.1860"

Diameter of cylinder block bore ..................................

2.1875"

2.1885 "

Clearance--bearings-to-block:

Front and rear.......................................................

.001 press

.0005 loose

Intermediate (extruded) ........................................

.0015"

.0065 "

Intermediate (die cast)..........................................

.0015"

.0105"

Camshaft and Balance Shaft Gears

Inside diameter ...........................................................

1.1865

1.1875"

Clearance--gear-to-shaft.............................................

.0015"press

.0.0001"

Backlash .....................................................................

.0030"

.0080"

.0100"

Idler Gear

Backlash .....................................................................

.0030"

.0080"

.0100"

Pre-load--Variation on pull 2 Ibs. 11 oz......................

1/2 lb

6 3/4 lb

1/2.6 3/4 lb.

Crankshaft Timing Gear

Inside diameter

......................................

4.7490"

4.7500"

Clearance--gear-to-shaft

......................................

.001 ".press

.001 " loose

Backlash

......................................

.0030"

.0080"

.0100"

Blower Drive Gear

Backlash .....................................................................

.0030"

.0080"

.0100"

Gear-to-hub fit.............................................................

.0005" press

.001 " loose

Support-to-end plate ...................................................

.0005" press

.0025" loose

Inside diameter (support bushing) ..............................

1.6260"

1.6265"

Hub diameter (at bearing) ...........................................

1.6240"

1.6250"

Hub-to-support bushing clearance..............................

.0010"

.0025"

.0050"

Hub-to-cam clearance ...............................................

.0020"

.0070"

End thrust (current bearing) ........................................

.0060"

.0140"

End thrust (former flanged bearing) ............................

.0050"

.0080"

.0100"

Cylinder Head

Flatness--transverse (

6 cyl.)..................................

.0040"

Flatness--longitudinal (6 cyl.) .....................................

.0100

Distance between top deck and fire deck ...................

3.5560"

3.5680"

3.5360"

Water nozzles .............................................................

.0312" recess

Flush

Cam follower bores .....................................................

1.0620"

1.0630"

1.0650"

Exhaust Valve Seat Inserts

Seat width--30 (4-valve).............................................

.0468"

.0937"

Valve seat runout ........................................................

.0020 "

Page 149

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