SERVICE MANUAL
4DNX, 4DX, 4SP, 4SPX SERIES PLUNGER PUMPS
FLOW
PUMP
MODEL
gpm
4DNX25GSI
2.5
4DNX27GSI
2.7
4DX03ELR
0.3
4DX10ER
1.0
4DX15ER
1.5
4DX20ER
2.0
4DX27ER
2.7
4DX30ER
3.0
4DX29GUIF
2.9
4SP21ELR
2.1
4SP29ELR
2.85
4SPX32G1I
3.2
IMPORTANT SAFETY INSTRUCTIONS
It is the responsibility of the user to read and understand all instructions, important safeguards, and safety precautions before operating or servicing
any pump. Failure to do so may result in property damage, personal injury or death.
General Safety Information and Symbols
Pay special attention to the following signal words, safety alert symbols and statements:
DANGER
indicates a hazardous situation which, if not avoided, will result in death or serious injury.
indicates a hazardous situation which, if not avoided, could result in death or serious injury.
WARNING
CAUTION
indicates a hazardous situation which, if not avoided, could result in minor or moderate injury or property damage.
NOTICE
indicates a hazardous situation which, if not avoided, could result in property damage.
Indicates a potential personal injury hazard. Obey all safety messages that follow this symbol to avoid possible injury or death.
SERVICING THE 4DNX, 4DX, 4SP and 4SPX SERIES PLUNGER PUMPS
WARNING
Do not service pump or electrical equipment while energized. Electricity
can cause personal injury, death or property damage.
1.
Adhere to "Lock Out" and "Tag Out" procedures for electrical equipment.
2.
Before commencing pump service, turn power supply off.
3.
Keep water away from electrical outlets and electrical devices.
4.
Electrical components must be installed by a qualified electrician to avoid risk of electrocution.
PRESSURE
lpm
psi
bar
9.5
3000
207
10.2
3000
207
1.14
2000
138
3.8
2000
138
5.7
2000
138
7.6
2000
138
10.2
2000
138
11.4
2000
138
11.0
2600
179
7.9
2000
138
10.8
1200
83
12.1
3000
207
RPM
TEMPERATURE
Pump
˚F
˚C
3450
140
60
3450
140
60
1750
140
60
3450
140
60
3450
140
60
3450
140
60
3450
140
60
3450
140
60
3450
140
60
1750
140
60
1725
140
60
3450
140
60
SHAFT DIA.
OIL CAPACITY
in
mm
oz
3/4
19
8.5
3/4
19
8.5
5/8
15.8
8.5
5/8
15.8
8.5
5/8
15.8
8.5
5/8
15.8
8.5
5/8
15.8
8.5
5/8
15.8
8.5
3/4
19
8.5
5/8
15.8
10.1
5/8
15.8
10.1
1
25.4
10.1
l
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.30
0.30
0.30
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