AIR COMPRESSOR - OWNER'S MANUAL
17
AIR COMPRESSOR - OWNER'S MANUAL
32
TROUBLESHOOTING
Compressor
will not start
No electrical power
Tank pressure is between starting
and stopping pressures
Check or have system checked
Wait until pressure drops
TROUBLE
POSSIBLE CAUSE
CORRECTIVE ACTION
Motor
overheats,
blows fuses
or overload
relay cuts out
Wrong fuse size
Replace with correct size
High ambient temperature
Provide ventilation. Check distance from the wall
Wrong wire size
Have electrical system checked
Thermal overload tripped
Allow to cool and reset overload relay
One leg of supply line interrupted
Check all fuses and terminals for tightness. Check each leg
Pump using
too much oil
Air filter dirty
Clean or replace element
Oil level too high
Do not overfill crankcase
Breather valve malfunctioning
Check valve and fix if broken
Piston rings worn or broken
Ckeck rings and replace if necessary
Oil leaks
Tighten pump bolts or replace leaking gaskets
Wrong oil viscosity, synthetic oil
Drain and refill with proper oil
Tank does not
hold pressure
Diaphagm in pressure switch
defective
Replace pressure switch
Leaking fittings
Check for leaks and tighten
Compressor
starts more
than seven
times per
hour
High moisture level in tank
Drain tank
Check valve leaks
Drain air. Remove and fix
Pressure switch set incorrectly
Check cut in and cut out setting
Excessive air requirements
Decrease shop consumption by installing a regulator. Add another
compressor to supply
Leaks in air system
Inspect air system and fix
Compressor
takes too long
to fill tank
Excessive air requirement
Determine if compressor is properly sized for job
Compressor not in optimal condition
Perform maintenance, check for loose belts, dirty air filter
Dirty, sticking or damaged valves
Remove cylinder head and clean, replace damaged reed
valves and gaskets
Compressor not properly installed
Level the tank feet with vibration isolators and shims
Compressor
vibrates
Mounting bolts too loose
Torque mounting bolts evenly
Pulley and flywheel mis-aligned
Realign per manual
Belts loose
Tighten per manual
TECHNICAL DATA 7.580VV30X
BARE PUMP PARTS
8
47
9
5
10
11
31
30
32
33
1
12
13
14
16
17
19
18
15
5
5
34
25
25
20
21
25
25
26
24
27
46
7
29
5
22
23
24
47
39
41
42
38
DETAIL OF THE
ASSEMBLY OF
GASKET IN A
CRANKCASE
COVER
1
4
5
6
3
2
37
36
35
43
44
38
40
28
1
27
Upper gasket kit
LP 120mm cylinder cover
M6 x 1,0 x 55 Allen head bolt
Air filter
Filter element
HP connecting rod with needle bearing
Needle bearing
HP Ø 2.1/2" piston
HP 2.1/2" ring kit
HP 2.1/2" cylinder
HP 2.1/2" valve plate
HP valve plate kit
HP 2.1/2" cylinder cover
Intercooler kit
90 MF 3/4" elbow
UNC 5/16" x 5/8" LT head bolt
3/4" x 3/4" straight connection
3/4" nut for intercooler
Crankase breather tube
NPT 1/8" x 1/4" elbow
HP 1/8" ASME safety valve
LP 1/8" ASME safety valve
UNC 3/8" x 1" LT head bolt
0
01
01
03
01
01
01
01
01
01
01
01
01
01
01
02
01
02
02
01
02
01
01
14
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
830.0956-0/NA
709.1272-0
*
809.1085-0
007.0118-0
830.0632-0
019.0028-0
830.0608-0
830.0982-0
709.1193-0
809.1029-0
830.0957-0
709.1389-0
709.0283-4
003.0111-6
*
21011002
21011004
830.0340-5
003.0005-5
022.0215-0
022.0177-0
*
Crankshaft
Flywheel
UNC 1/4" x 3/4" LT head bolt
Flange cover
Crankcase gasket kit
Oil seal
UNC 3/8" x 1.1/2" LT head bolt
6208 bearing
Flange
6309 bearing
Key
Counter weight
UNC 3/16" x 7/8" LT Allen head bolt
Crankcase
Oil drain tube
Crankcase cover
3/4" oil level sight
1/4" plug
LP connecting rod
LP Ø 120mm piston
LP 120mm ring kit
LP 120mm cylinder
LP 120mm valve plate
LP valve plate kit
01
01
08
01
01
01
11
01
01
01
01
01
02
01
01
01
01
01
01
01
01
01
01
01
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
830.0609-9
709.1277-0
*
709.0139-0
830.0954-0/NA
023.0099-0
*
019.0006-4
709.1221-0
382.0028-3
709.0147-1
709.0930-8
013.0467-4
709.1191-0
830.0205-0
709.1273-0
830.0775-0
003.0028-4
709.0732-1
016.0004-4
830.0981-0
709.1192-0
809.1028-0
830.0955-0
CODE
CODE
QTY
QTY
DENOMINATION
DENOMINATION
No.
No.
A
A
B
TABLE 1 - TORQUE
ESPECIFICATION FOR BOLTS
T7
T6
T5
T8
T4
T3
T2
T1
Position
lbf.in
ft.lb
304
25
7 - 47
141
11.8
27
19
1.6
LP-HP 24 - 36
44
3.6
LP 24
70
5.8
3
149
12
41
1,128
94
1
63
5
13
34
16
2.2
5
8
17
127
7.2
N.m
45
7
T1
T2
T3
T3
T1
T8
B
T3
T2
T1
T4
T1
3
T5
T7
T6
T5
* Part available in the market - not sold by Schulz.
HP = high pressure LP = low pressure
