TM 5-3825-226-24
GAUGE INSTALLED
(Typical Example)
1. 3B7722 Bushing. 2. 9S8138 Pressure Gauge.
The front housing has several plugs that give
access to water passages inside the housing.
DYNAMOMETER TEST CAUTION
To prevent possible damage to an engine while
testing on a dynamometer, the water temperature
regulators must be installed and shunt line (2)
connected as shown.
SHUNT LINE CONNECTED TO ENGINE
(Typical Example)
1. FT790 Cooling Tower Group. 2. Shunt line.
V-BELT TENSION CHART
WIDTH TOP
BELT TENSION
BELT TENSION
WIDTH
OF PULLEY
“INITIAL”
“USED”
BORROUGHS GAUGE NUMBERS
BELT SIDE
BELT TOP
GROOVE
GAUGE READING
GAUGE READING
In.
mm
In.
mm
lb.
N
lb.
N
OLD GAUGE NO.
NEWGAUGENO.
3/8
.422
10.72
.380
9.65
100 + 5
445 + 22
90 + 5
400 ± 22
BT-33-73F
BT-33-95
1/2
.547
13.89
.500
12.70
120 + 5
534 + 22
90 + 10
400 ± 44
BT-33-96-4-16
BT-33-95
5V
.625
15.88
.600
15.24
120 + 5
534 + 22
90 + 10
400 ± 44
BT-33-72-4-15
BT-33-72C
11/16
.688
17.48
.625
15.88
120 ± 5
534 + 22
90 + 10
400 + 44
BT-33-72-4-15
BT-33-72C
3/4
.750
19.05
.690
17.53
120 ± 5
534 + 22
90 ± 10
400 + 44
BT-33-72-4-15
BT-33-72C
15/16
.938
23.83
.878
22.30
120 + 5
534 + 22
90 + 10
400 + 44
BT-33-72-4-15
BT-33-72C
MEASURE TENSION OF BELT FARTHEST FROM THE ENGINE
”INITIAL" BELT TENSION is for a new belt.
”USED" BELT TENSION is for a belt which has more than 30 minutes of operation at rated speed of engine.
A10232X5
BASIC BLOCK
CONNECTING RODS AND PISTONS
Use the 5F9059 Piston Ring Expander to
remove or install piston rings.
Use the 5P3524 Piston Ring Compressor to
install pistons into cylinder block.
Tighten the connecting rod nuts in the following
step sequence:
1.
Put engine oil on bolt threads and seating
surfaces of cap and nut.
2.
Tighten both nuts to 30 + 3 lb. ft. (40 + 4 N-m).
3.
Put a mark on each nut and cap.
4.
Tighten each nut 600 from the mark.
The connecting rod bearings should fit tightly in
the bore in the rod. If bearing joints or backs are worn
(fretted), check for bore size as this is an indication of
wear because of looseness.
2-72
