Hydronic P720 User manual

HYDRONIC CORPORATION
Air Driven Hydraulic Pumps and Intensifiers
P720 Installation, Use and Maintenance Manual
Contents
Introduction, Guarantee and Identification Plate
Description, Air perated Pressure Release Valve, Startup Procedures
Description of Working Parts, Storage and Disposal
Fault Finding, Maintenance and Weights
Spare Parts
Hydronic Corporation, 2034 Fruit St, Algonac, MI 48001 United States o America
℡ [phone] www.hydroniccorp.com

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 2
Introduction
This handbook is intended to give the operator the basic instructions or the use and
maintenance o the pump. The air hydraulic pump operator must read this handbook
be ore putting the pump into operation. A ter correctly installing the pump, keep this
manual stored in a sa e place. I you have di iculty in understanding any part o this
handbook, contact Hydronic Corporation. Regular servicing and correct use o the
pump are undamental in obtaining optimum per ormance over its li e. When
contacting our service center, speci y the pump model and serial number; this will help
us to respond quickly and e ectively.
Guarantee
Hydronic pumps are guaranteed both or the quality o materials used and or overall
design. The warranty runs or six months o normal use at eight hours per day and ive
days per week. The warranty itsel does not cover seals or de ects arising out o
operating with unsuitable luids or at pressures above the speci ied maximum. The
guarantee cannot cover pumps that may have been tampered with. De ective goods
must be sent to Hydronic Corporation at Farmington Hills or to the distributor covering
the area, reight pre-paid in either case. Any pump returned to us must be
accompanied by a ull written description o such aults or de ects as have been
discovered. Please also ensure that the pump’s serial number is attached to the
paperwork.
Identification Plate

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 3
Installation Guide
Pumps should be installed in a vertical position or optimum unctioning o suction and
delivery valves. Suction, pressure and airlines should be ¼” bore. Basic pumps can be
controlled by a hydraulic directional valve. The manual pressure release version will stop
and start the pump at the same time as opening and closing the pressure to tank line.
The air-operated version will require a pneumatic our-way valve to direct air to the
pump or the air-operated pressure to tank line. It may be use ul in certain applications
to add lubrication oil to the air inlet. I this action is taken, the ollowing speci ications
are advised:
•Hydraulic oil having viscosity o 150 to 250 SSU
•Oil temperature 32º F to 150º F
•Air temperature 40º F to 100º F
•Room temperature 40º F to 100º F
Compressed Air System
It will be advisable to it an air ilter/regulator unit having minimum low capacity o 30
sc m plus a pressure gauge in order to ensure the pump has su icient air energy to work
correctly and provide the hydraulic per ormance you expect.
Hydraulic System
Valves, pipes, hoses and accessories should all correspond to maximum working
pressure o the pump used and be o a size that will ul ill low requirements. Bear in mind
the minimum o ¼” bore or the suction line.
Application
Hydronic air driven hydraulic pumps are designed or operating oil hydraulic circuits.
The pump operates simply, a large sur ace area piston actuated by compressed air.
Attached to it is a piston with a smaller sur ace area in a hydraulic chamber generating
high hydraulic pressures. The continuous pumping action is produced by the
compressed air being switched by a special valve assembly. By regulating the air
pressure rom 30 psi to 100 psi, the maximum hydraulic pressure can be adjusted by the
ratio o the pump used. As the hydraulic load o the circuit increases and the oil
pressure rises, the pump will slow down and eventually stop. In this way, the maximum
load o the circuit will be maintained without air consumption.

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 4
Storage
I the pump is to be kept out o use or a long period, clean the pump in general and
drain the oil rom the tank. Cover the pump and store it in a dry, well-protected place. It
is advisable to wrap the pump in a plastic ilm. To put back into service, check all parts,
ill tank with oil and try the pump out to ensure that it working properly. This operation
must be carried out by qualified personnel.
Disposal
I the pump is to be scrapped, treat as a special type o waste. Dismantle it and divide it
into materials o the same type and dispose o them in accordance with the local laws
and regulations in your state.
Description of the standard pump components
A Air inlet 1/8” NPT
B Oil Filler/Breather
C1 Release Pressure Setting
D Exhaust Filter
E Oil outlet ¼” NPT
F Additional Oil Return Port
G Oil level sight glass
H Air Pilot 1/8” NPT
Oil suction 3/8” NPT

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 5
Air perated Pressure Release Valve
This mechanism is intended or use in systems where no directional control valves are
used. Pressurized oil rom the system will be released internally back to tank when pilot
air pressure is applied to the 1/8” NPT connection shown here as H.
Commonly, a small pneumatic valve will be used to direct regulated air pressure either
to the pump or to the pressure release valve. In this way, the pump is started with the
system intact and stopped with the oil pressure vented sa ely to tank. Varieties o
pneumatic valve may be used including solenoid and lever, allowing the power unit to
be situated away rom the operator.
The adjustment C1 may be needed when the pilot air pressure is low or i the required
oil pressure is at the highest level. Adjusting the screw inward will hold the valve shut with
more orce but will also require more pilot air pressure to release it.

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 6
Starting - Up
Oil pressure can be determined by regulation o the compressed air, bearing in mind o
course the multiplication ratio pre-selected or the pump itsel .
The models are: P720-10 RATIO 1:10
P720-20 RATIO 1:20
P720-40 RATIO 1:40
P720-70 RATIO 1:70
P720-100 RATIO 1:100
It should be remembered that the action o the piston assembly is to be powered down
by the compressed air but returned by a large spring. This causes the ratio to be lower
at air pressures below the maximum.
Having connected the compressed air supply at a low pressure, allow the pump to
operate slowly until primed and oil comes through to the output port. Now shut o the
air supply to the pump and securely connect the hydraulic circuit. Switch on the air
supply again and allow the pump to run in order to bleed any air out o the hydraulic
circuit.
Fault Finding Chart
Fault Cause Remedy
1] Pump does not 1.1] Low pressure in 1.1] Clear any blockage or
cycle or runs slowly. compressed air line. restriction on the airline.
1.2] Formation o ice 1.2] Shut o pump or an
on the exhaust side. short time and drain o
water rom the ilter.
1.3] Accumulation 1.3] Remove silencer, clean
o waste in the silencer. and replace.
1.4] Blocked element in 1.4] Close down air-supply,
air ilter/regulator. dismantle and clean ilter.
2] Pump loses air rom 2.1] Worn valve or seal 2.1] Replace seal or valve.
silencer when stalled.
3] Excess oil leakage 3.1] Worn hydraulic seal 3.1] Replace seal.
rom air silencer.

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 7
4] Pump cycles without 4.1] Blocked oil-intake 4.1] Clean out ilter.
pumping oil. 4.2] Bad connection 4.2] Check or bad connections
on suction line. or air leaks on suction line.
5] Pump unctions but 5.1] Internal leakage 5.1] Find leak source and
only generates low in the circuit. change valve.
pressure and does not 5.2] Suction valve seats 5.2] Replace suction valve
stall at max. pressure. damaged and leaking. parts.
5.3] Output valve seats 5.3] Replace output valve
damaged and leaking. parts.
5.4] Worn oil seal. 4.4] Replace seal.
Maintenance
Periodically release the condensation rom the air ilter. Replace the hydraulic oil every
1500 hours or whenever the oil is polluted.
Warning: Remember that repair work can only be made when pneumatic and
hydraulic pressure has been released and you are sure that no pressure remains in the
circuit.
Delivery of the pump
Transport
All the material shipped, including the detached parts, has been thoroughly checked
be ore being consigned to the orwarding agent. The pump is shipped in double
corrugated cardboard packaging, which assures protection o the product.
Unpacking
On receipt o the product, open the packaging and remove the pump. Take care not
to damage any part o the pump. Make an initial check on the pump or damage in
transit. In case o damage or i in doubt, do not use the pump and contact Hydronic
Corporation or your distributor. The packaging [plastic bags, expanded polystyrene,
nails, screws, wood, etc.] must not be le t within reach o children since they are
potential source o danger. Be sure to dispose o pollutant or non-biodegradable
materials in the correct way. Materials must be disposed o in accordance with the laws
in orce.

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 8
Gross weight
P720 Basic pump 17 lbs.
P720 with R3 reservoir 22 lbs.
P720 with R4 reservoir 23 lbs.
P720 with R15 reservoir 27 lbs.
P720 with R25 reservoir 29 lbs.
Contents of the package
The packaging will always contain the ollowing:
1 x air driven hydraulic pump
1 x installation, use and maintenance manual
riginal spare parts
Parts orders must always be accompanied by the ollowing in ormation:
A] The pump model B] The pump serial number C] Year o construction
(all this data is given on the nameplate)
D] The part numbers E] The quantity required F] The name o the part
(All this data is given in the parts list)
A clear and correct statement o this data will allow our a ter-sales service to respond
quickly and appropriately. Every spare part must be replaced by pro essionally quali ied
sta . The manu acturer declines all responsibility or mal unctions or accidents deriving
rom any ailure o the product when unquali ied persons have made any attempt at
repair.

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 9
ITEM CODE DESCRIPTION QTY
1 5.084.0001 PLUG 1
2 * 3.053.0101 SEAL RING 1
3 5.068.0067 PISTON 1
4 5.034.0097 HEAD 1
5 3.094.0008 SCREW 5
6 * 5.050.0001 RUBBER 1
7 * 3.051.0073 SEAL RING 2
8 5.068.0044 PISTON 1
9 5.068.0039 PISTON - RATIO 1:100 1
9 5.068.0040 PISTON - RATIO 1:70 1
9 5.068.0041 PISTON - RATIO 1:40 1
9 5.068.0042 PISTON - RATIO 1:20 1
9 5.068.0043 PISTON - RATIO 1:10 1
10 5.034.0001 Disk - RATIO 1:100 1
10 5.034.0001 Disk - RATIO 1:70 1
10 5.034.0002 Disk - RATIO 1:40 1
10 5.034.0003 Disk - RATIO 1:20 1
10 5.034.0004 Disk - RATIO 1:10 1
11 5.064.0024 SPRING 1
12 5.064.0025 SPRING 1
13 3.094.0006 SCREW 2
14 5.064.0026 SPRING 1
15 5.093.0001 SILENCER 1
16 5.018.0029 JACKET 1
17 5.045.0014 RING-NUT - RATIO 1:100 1
17 5.045.0015 RING-NUT - RATIO 1:70 1
17 5.034.0005 RING-NUT - RATIO 1:40 1
17 5.045.0016 RING-NUT - RATIO 1:20 1
17 5.034.0047 RING-NUT - RATIO 1:10 1
18 5.014.0011 BUSHING - RATIO 1:100 1
18 5.014.0012 BUSHING - RATIO 1:70 1
18 5.014.0013 BUSHING - RATIO 1:40 1
18 5.014.0014 BUSHING - RATIO 1:20 1
18 5.014.0015 BUSHING - RATIO 1:10 1
19 * 3.051.0067 SEAL RING - RATIO 1:100 1
19 * 3.051.0068 SEAL RING - RATIO 1:70 1
19 * 3.051.0069 SEAL RING - RATIO 1:40 1
19 * 3.051.0070 SEAL RING - RATIO 1:20 1
19 * 3.051.0235 SEAL RING - RATIO 1:10 1
20 5.028.0016 PUMP BOD - RATIO 1:100 1
20 5.028.0017 PUMP BOD - RATIO 1:70 1
20 5.028.0018 PUMP BOD - RATIO 1:40 1
20 5.028.0019 PUMP BOD - RATIO 1:20 1
20 5.028.0020 PUMP BOD - RATIO 1:10 1

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 10
ITEM CODE DESCRIPTION QTY
20/1 3.041.0010 FILTER 1
22 3.076.0011 BALL 2
23 5.046.0001 CENTERING 1
24 * 3.052.0003 WASHER 2
25 5.071.0026 OUTLET CONNECTOR 1
26 5.064.0022 SPRING 1
27 3.094.0203 SCREW 6
28 3.006.0003 SEGER 2
29 5.046.0002 CENTERING 1
30 5.064.0023 SPRING 1
31 3.076.0010 BALL 1
32 * 3.052.0005 WASHER 1
33 5.071.0003 SUCTION CONNECTOR 1
36 * 3.051.0002 O-RING 1
52 5.094.0305 COUPLING 1
52/1 3.094.0403 SCREW 1
80 3.094.0009 SCREW 1
81 * 3.051.0072 O-RING 1
82 * 3.051.0039 O-RING 2
83 3.094.0007 SCREW 1
84 5.041.0005 FILTER 1
85 3.072.0103 WASHER 6
107 5.034.0054 CONNECTOR 1
Seal Kits Ratio Code
S720-10-N-SK 1:10 3.054.0018
s720-20-N-SK 1:20 3.054.0019
S720-40-N-SK 1:40 3.054.0020
S720-70-N-SK 1:70 3.054.0021
S720-100-N-SK 1:100 3.054.0022

Hydronic Air Driven Pumps & Intensifiers P720 Installation, Use and Maintenance Booklet 08-21-09
Page 11
Air/Manual operated pressure release valve spare parts and seal kits
Item Code Description Qty
22 3.076.0011 Ball 1
22/1 3.076.0012 Ball 1
22/2 3.076.0013 Ball 1
24 * 3.052.0003 Washer 1
37 3.070.0032 Elbow 1
38 5.090.0001 Air Pipe 1
39 3.094.0202 Screw 2
40 4.091.0001 Valve 1
41 3.070.0002 Connector 1
42 3.094.0016 Screw 2
43 * 3.052.0006 Washer 1
44 5.065.0008 Plate 1
45 3.072.0101 Washer 2
46 3.072.0001 Washer 2
47 3.070.0057 Silencer 1
48 3.094.0402 Screw 1
49 3.095.0001 Handwheel 1
50 5.008.0027 Cam 1
51 * 3.051.0074 O-Ring 1
52 5.094.0305 Coupling 1
53 5.090.0002 Pipe 1
54 5.066.0009 Pivot 1
56 5.094.0306 Coupling 1
57 5.034.0098 Head 1
59 5.011.0001 Pivot 1
60 * 5.050.0002 Air Diaphragm 1
61 5.008.0010 Disk 1
62 5.008.0011 Washer 1
63 3.031.0051 Nut 1
64 5.064.0027 Spring 1
64/1 5.064.0003 Spring 1
65 5.033.0001 Disk 1
66 5.086.0005 Head 1
67 3.094.0008 Screw 6
68 3.031.0004 Nut 1
70 * 3.005.0024 Seal Ring 1
71 * 3.051.0198 O-Ring 1
72 5.014.0049 Bushing 1
73 3.006.0023 Snap Ring 1
74 5.008.0012 Washer 1
75 3.094.0404 Screw 1
104 5.033.0009 Ball Seat 1
106 5.034.0013 Screw 1
108 5.034.0032 Pivot 1
109 5.034.0034 Coupling 1
Seal Kits for Air perated Release Valve
P720A-10 3.054.0023
P720A-20 3.054.0024
P720A-40 3.054.0025
P720A-70 3.054.0026
P720A-100 3.054.0027
Manual Release
All Ratios
Automatic Release for 10:1 / 20:1 / 40:1 / 70:1
Automatic Release for 100:1