DIAGRAMS & TABLES
High Pressure Head Bolts
Low Pressure Head Bolts
Cylinder Flange Bolts
Frame Cover Bolts
Shaft Cover Bolts
Crankpin Cap Screws
Unloader Cover Screws
High Pressure Inlet Valve Screws
Low Pressure Inlet Valve Screws
High Pressure Outlet Valve Screws
Low Pressure Outlet Valve Screws
Beltwheel Bolt
High Pressure Head Center Bolts
Low Pressure Head Center Bolts
NOTE
Tighten all fasteners evenly using a cross pattern in two stages.
MODEL
2340 (14" Span)
2340 (19" Span)
2475 (14" Span)
2475 (19" Span)
2475F/X11GH
2475F/X9/11GK
2475N5 (14.5" Span, Cogged
belt)
2545 (A Groove)
FASTENER TORQUE TABLE
2340
75
75
30
17
17
5.5
—
11-15 LB-IN
11-15 LB-IN
11-15 LB-IN
25-30 LB-IN
33
—
—
BELT TENSION TABLE
DEFLECTION (IN.)
TENSION (LB.)
0.25
4.9 - 7.1
0.29
4.9 - 7.1
0.25
4.9 - 7.1
0.29
4.9 - 7.1
0.34
5.5 - 8.0
0.25
11.25 - 13.0
0.23
4.5 - 6.5
0.29
4.9 - 7.1
13
2475
2545
75
75
75
75
50
50
17
17
17
17
11
11
—
11
11-15 LB-IN
11-15 LB-IN
25-30 LB-IN
25-30 LB-IN
11-15 LB-IN
11-15 LB-IN
25-30 LB-IN
25-30 LB-IN
60
60
—
10
—
14-16
BELT
HORSEPOWER
TYPE
B
7.5
10-15
C
20
25-30
http://air.irco.com
7100
15T
75
75
75
75
50
50
20
20
20
20
12-15
12-15
11
20
5.5
—
5.5
—
26
50
26
90
113
213
—
—
—
—
TENSION AT 1/64" DEFLECTION PER
INCH OF SPAN
7.0 - 10.0
8.0 - 12.0
12.0 - 18.0
14.0 - 21.0
3000
75
75
50
20
20
12-15
11
5.5
5.5
26
26
213
—
—