BVA PA7550 User manual

Printed in Taiwan
MODEL: PA7550 & PA7550M
Air Hydraulic Pump
Instruction Manual
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
PA7550 PA7550M
Maximum Operating Pressure 10,000 PSI
PA7550-M0_092017
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
!
Model No. A5727外觀圖
Approved By:
Checked By:
Drawn By: 陳神佑
Date: 2017.01.13
File name: A5727_1701OUT
Model No. A6705外觀圖
Approved By:
Checked By:
Drawn By: 陳神佑
Date: 2017.01.13
File name: A6705_1701OUT

2
PRODUCT DESCRIPTION
BVA Hydraulics Air Hydraulic Pump is engineered to meet
most industrial standards for Performance and Safety. It is
an air hydraulic pump with 4-way valve. It’s unique hydraulic
circuit allows quick displacement of hydraulic uid under
no load conditions and easy pumping in loaded conditions.
Pump supplies compressed hydraulic uid to compatible
single or double-acting cylinder, anywhere that 10,000 PSI
of uid pressure is needed. It is suited for plant maintenance,
production, bolting, vehicle repair, and any task that requires
hydraulic pressure from air input. Special skill, knowledge
and training may be required for a specic task and the
product may not be suitable for all the jobs described above.
Unsuitable applications would include applications that call for
a device to move, level or support persons, animals, hazardous
materials, mobile homes/ dwellings in general, mirrors and/or
plate glass, and/or to connect/secure hatches, components,
etc. between bulkheads. The user must ultimately make the
decision regarding suitability of the product for any given task
and assume the responsibility of safety for himself and others
in the work area.
WARNING: To reduce the risk of personal injury and/or
property damage, ensure that the rated working pressure
of each pressurized attachment be equal to or greater
than the rated working pressure developed by the
hydraulic pump.
WARNING: Always check connections before using.
Alteration of these products is strictly prohibited. Use
only those adapters and attachments provided and
approved by the manufacturer.
SPECIFICATIONS
Model
No. Valve Style
Usable Oil
Capacity
(Cu. In.)
Rated
Pressure
(PSI)
Output Flow Rate
(Cu. In./Min.)
Input Air
Pressure
(PSI)
Oil Output
Port Thread
Air Input
Port
Thread
Weight
(Lbs)
No Load Loaded
PA7550 Single Acting
461 10,000 66 11 110 - 175 3/8"-
18NPTF 1/4"-18NPT
38.0
PA7550M Double Acting 41.0
SAFETY AND GENERAL INFORMATION
Save these instructions. For your safety, read and understand
the information contained within. The owner and operator shall
have an understanding of this product and safe operating
procedures before attempting to use this product. Instructions
and safety information shall be conveyed in the operator's
native language before use of this product is authorized. Make
certain that the operator thoroughly understands the inherent
dangers associated with the use and misuse of the product. If
any doubt exists as to the safe and proper use of this product
as outlined in this factory authorized manual, remove from
service immediately.
Inspect before each use. It is recommended that, prior to each
use, an inspection be done by qualied personnel and that any
missing or damaged parts, decals, warning/ safety labels or
signs be replaced with BVA Hydraulics authorized replacement
parts only. Any pump that appears to be damaged in any way,
is worn, leaking or operates abnormally shall be removed from
service immediately until such time as repairs can be made.
Any pump that has been or suspected to have been subject
to a shock load (a load dropped suddenly, causing the system
pressure to exceed 10,000 PSI), shall be removed from service
immediately until checked out by a BVA Hydraulics authorized
service center. Owners and operators of this equipment shall
be aware that the use and subsequent repair of this equipment
may require special training and knowledge.
!
!
Figure 1 – PA7550 & PA7550M Nomenclature
Oil Outlet Port,
3/8”-18NPTF
Oil Outlet Port,
3/8”-18NPTF
Air Inlet Port,
1/4”-18NPT
Air Inlet Port,
1/4”-18NPT
Reservoir
Reservoir
Oil Filler Hole
Foot Pedal
Foot Pedal
Control Valve
Oil Filler Hole
Carry
Handle
Figure 1 - Model PA7550 & PA7550M Nomenclature

3
• Study, understand, and follow all
instructions provided with and on this
device before use.
• No alteration shall be made to this
device.
• Always wear protective gear when
operating hydraulic equipment.
• Keep hydraulic equipment away from
ames and heat. Hydraulic uid can ignite
and burn. Do not operate if leaks are
detected.
• Crush Hazard. Keep hands and feet away
from loading area. Avoid pinch points
or crush points that can be created by
the load, cylinder, or any equipment of
system.
• To avoid crushing and related injuries:
NEVER work on, under or around a
lifted load before it is properly supported
by appropriate means. Never rely on
hydraulic pressure alone to support
load.
HYDRAULIC PUMPS
• The user must be a qualied operator familiar with the
correct operation, maintenance, and use of pumps. Lack
of knowledge in any of these areas can lead to personal
injury.
• Do not exceed rated capacity of the pump or any equipment
in the system.
• Never attempt to lift a load weighing more than the capacity
of the cylinder.
• Burst hazard exists if hose or connection pressure exceeds
rated pressure.
• Inspect pump, cylinder, hoses and connections before
each use to prevent unsafe conditions from developing.
Do not use if damaged, altered or in poor condition. Do not
operate system with bent or damaged coupler or damaged
threads.
• Never hold or stand directly in line with any hydraulic
connections while pressurizing.
• Use gauge or other load measuring instrument to verify
load.
• Never attempt to disconnect hydraulic connections under
pressure. Release all line pressure before disconnecting
hoses.
• Do not subject the pump and its components to shock
loads.
• Use only approved accessories and approved hydraulic
uid.
• Never attach ANY component not authorized by
manufacturer.
• Always ensure that the chosen application is stable to work
on and around.
• Do not connect to application which can return more oil to
the reservoir than the pump reservoir can hold.
• Do not connect pump to hydraulic system powered by
another pump.
• This device is not suitable for use as support device! As
the system load is lifted, use blocking and cribbing to
guard against a falling load.
• Clear all personnel before lowering load or depressurizing
the system.
• Do not disassemble hydraulic cylinder, refer repairs to
qualied, authorized personnel.
HYDRAULIC HOSES & FLUID TRANSMISSION LINES
• Avoid short runs of straight line tubing. Straight line runs
do not provide for expansion and contraction due to
pressure and/or temperature changes.
• Reduce stress in tube lines. Long tubing runs should
be supported by brackets or clips. Before operating
the pump, tighten all hose connections with proper
tools. Do not overtighten. Connections should only be
tightened securely and leak-free. Overtightening can
cause premature thread failure or high pressure ttings
to burst.
• Should a hydraulic hose ever rupture, burst or need to be
disconnected, immediately shut off the pump and release
all pressure. Never attempt to grasp a leaking pressurized
hose with your hands. The force of escaping hydraulic
uid can inict injury.
• Do not subject the hose to potential hazard such as re,
sharp objects, extreme heat or cold, or heavy impact.
• Do not allow the hose to kink, twist, curl, crush, cut or bend
so tightly that the uid ow within the hose is blocked or
reduced. Periodically inspect the hose for wear.
• Do not pull, position or move setup by the hose.
• Hose material and coupler seals must be compatible with
hydraulic uid used. Hoses also must not come in contact
with corrosive materials such as battery acid, creosote-
impregnated objects and wet paint. Never paint a coupler
or hose.
• FAILURE TO HEED THESE WARNINGS MAY RESULT
IN PERSONAL INJURY AS WELL AS PROPERTY
DAMAGE.
WARNING
!

4
BEFORE USE
1. Before using this product, read the instruction manual
completely and familiarize yourself thoroughly with the
product and the hazards associated with its improper use.
2. Know your pump, its limitations and how it operates before
attempting to use.
3. Replace shipping plug (red color) with air vent plug (black
color) before use.
4. Remove plastic cap from the air inlet port on the end of the
pump, then connect with a 1/4” NPT air nipple (not supply
with pump). Use teon tape or similar thread sealant on
thread connection.
NOTICE: When using the teflon tape or pipe thread
compound. Tighten securely to prevent accidental removal of
compound while in use. Take care not to introduce compound
into port orices.
OPERATION (for PA7550)
Always monitor pressure, load or position using
suitable equipment. Pressure may be monitored by
means of an optional manifold and gauge. Load may be
monitored by means of a load cell and digital indicator.
Correct application position can only be determined by the
operator of the equipment.
1. To extend the cylinder, depress on the foot pedal marked
"Pump" (horizontal portion) until desired pressure, load or
position is reached.
2. To hold the cylinder in position, release the foot pedal to
deactivate the pump.
3. To retract the cylinder, depress the release valve by
stepping on the foot pedal marked "Release" (raised,
stirrup shaped portion). Never operate a pump which is
disconnected from application. If operate in this condition,
the hose and connections will become pressurized. This
increases burst hazard. Damage may occur to pump and
its components.
Port A Port B Port A Port B
Port A Port B
Position 1: Pressurized oil
ows to port “B”, port “A”
returns ow to tank.
P T P T P T
Position 2: Neutral, portss
“A” and "B" are closed. Hold
Position.
Position 1: Pressurized oil
ows to port “A”, port “B”
returns ow to tank.
1
2
3
Port A Port B
Figure 2 - PA7550M Flowpath of the valve positions and operations
OPERATION (for PA7550M)
WARNING: To reduce the risk of personal injury and/
or property damage, hydraulic connections must be
securely fastened before building pressure in the
system. Release all system pressure before loosening
any hydraulic connection in the system.
WARNING: Always monitor pressure, load or position
using suitable equipment. Pressure may be monitored
by means of an optional manifold and gauge. Load
may be monitored by means of a load cell and digital
indicator. Correct application position can only be
determined by the operator of the equipment.
1. Connect air supply to the 1/4” NPT air nipple.
2. Remove manifold plug, connect to hydraulic hoses and
suitable application.
3. Shift the valve to desired position. There are three positions
available, refer to Figure 2 on below for the owpath.
4. After shifting the valve, press on the foot pedal until
desired pressure, load or position is reached. Always
monitor pressure, load or position using suitable
equipment. Pressure may be monitored by means of
optional manifolds and gauges (contact BVA Hydraulics).
Load may be monitored by means of a load cells and
digital indicators.
NOTICE: Do not continue to operate pump after cylinder
plunger is fully extended or retracted.
5. Release the foot pedal will stop the pump ow.
NOTICE: Both air input ports use a 1/4 NPT air nipple (not
included). It is recommended to install an inline air lter
upstream from the pump to provide clean, lubricated air.
Contact BVA Hydraulics for necessary accessories.
!
!

5
TROUBLESHOOTING GUIDE
The following information is intended as an aid in determining if problem exists. Pumps should be repaired only by authorized
BVA Service Center. For repair service, contact service center in your area.
Symptom Possible Causes Corrective Action
Application does not extend, move or
respond to pressurized uid
• Overload condition
• Loose couplers
• Faulty couplers
• Pump malfunction
• Inadequate air supply
• Remedy overload condition
• Tighten couplers
• Replace couplers
• Contact service center
• Ensure air source can dedicate
7.8 CFM @ 110~175 PSI
Application responds to pressurized
uid, but system does not maintain
pressure
• Overload condition
• Pump or valve malfunction
• Application/connection leaking
• Remedy overload condition
• Contact Service Center
• Replace application/connection
Application responds slower than
normal
• Loose connection or coupler
• Restricted hydraulic line or tting
• Application/connection leaking
• Tighten connection or coupler
• Clean and replace if damaged
• Replace application/connection
Application does not return uid to
pump (i.e. cylinder will not retract)
• Malfunctioning coupler, damaged ap-
plication
• Secure load by other means.
Depressurize pump and hose,
remove coupler and/or application,
then renew or replace
Application does not fully extend (cyl-
inder or spreader)
• Reservoir overlled
• Fluid level in pump is low
• Secure load by other means.
Depressurize pump and hose,
remove application, then drain uid to
proper level
• Secure load by other means.
Depressurize pump and hose,
remove application, then ll uid to
proper level
Poor performance • Fluid level in pump is low • Ensure proper uid level
MAINTENANCE
NOTICE: Use premium quality hydraulic jack uid. Never use
brake uid, transmission uid, turbine oil, motor oil, alcohol,
glycerin etc. Use of other than good quality hydraulic oil will
void warranty and damage the pump, hose, and application.
1. Inspect hoses and connections daily. Replace damaged
components immediately with BVA Hydraulics replacement
parts only.
2. Tighten connections as needed. Use non-hardening pipe
thread compound when servicing connections.
Adding Hydraulic Fluid
1. Depressurize and disconnect hydraulic hoses from
application.
2. With pump in upright, horizontal position, remove the air
vent plug located on the top plate of the reservoir.
3. Use a small funnel to ll reservoir to within 3/4" (19mm) of
the opening.
4. Wipe up any spilled uid and reinstall the air vent plug.
Changing Hydraulic Fluid
1. For best results, change uid once a year.
2. Repeat step 2 on Adding Hydraulic Fluid, then pour used
uid into a sealable container.
3. Dispose of uid in accordance with local regulations.
4. Fill with a good quality hydraulic jack oil as recommended
above. Reinstall air vent plug.
Lubrication
When pump is operated on daily basis, the manufacturer
recommends installing an inline oiler and air dryer. Use SAE
grade oil (5W to 30W).
Storage
1. When not in use, depressurize and disconnect hydraulic
hoses from application.
2. Wipe clean, thoroughly.
3. Store in clean, dry environment. Avoid temperature
extremes.
4. For transportation or long storage, replace the air vent plug
with shipping plug.
5. Shield pump with a protective cover.

6
MODEL: PA7550
Air Hydraulic Pump
Service Parts
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
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File name: A5727_1701EXP
Date: 2017.01.13
Drawn By: 陳神佑
Checked By:
Approved By:
Model No. A5727

7
MODEL: PA7550
Air Hydraulic Pump
Service Parts
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
No. Part No. Description Qty.
1 A57-4-6003-100 Foot Pedal Assy. 1
2 A57-6-2003-102 Foot Pedal Axle 1
3 677-5-0070-101 E-clip 2
4 649-1-0050-055 Screw 2
5 D05-6-1001-106 Nut 1
6 A57-4-4001-500 Oil Outlet Base Assy. 1
6.1 N/A Oil Outlet Base 1
6.2 A17-6-1002-103 Silencer 1
6.3 666-5-0250-108 C-clip 1
6.4 666-5-0160-107 C-clip 1
6.5 A57-6-3007-105 Silencer 1
7 A57-4-4002-108 Oil Outlet Valve Assy. 1
8 A57-6-6005-106 Dust Cap 1
9 A57-6-5101-107 Leaf Spring 1
10 649-1-0050-046 Bolt 6
11 A57-4-3001-101 Release Bar Assy. 1
12 * Bevel Compressing Spring 1
13 * O-ring 1
14 * O-ring 2
15 * Pad 1
16 A57-4-3004-107 Release Base Assy. 1
17 512-2-0043-108 Compressing Spring 1
18 601-7-0009-001 Steel Ball 1
19 * Release Neddle 1
20 A57-4-3003-105 Release Valve Assy. 1
21 512-2-0061-100 Compressing Spring 1
22 A57-3-1900-109 Air Vent Assy. - Black 1
23 A57-3-5007-107 Plug Assy. - Red 1
24 A57-4-5001-101 Air Entrance Valve Seat Assy. 1
25 A57-6-2062-108 Connector 1
26 A17-6-1105-103 Plug 1
27 512-2-0092-101 Compressing Spring 1
28 649-1-0060-040 Bolt 18
29 * Copper Washer 18
30 A57-6-6008-102 Oil Tank Cover 1
31 * Pad 1
32 * Pad 1
33 A57-3-1027-103 Air Pump Assy., Refer to Page #10 1
34 H23-6-1000-102 Magnet 1
35 A57-3-6002-102 Reservoir 1
36 E05-3-9901-103 Drain Plug Assembly 1
* A57-3-9927-109 Repair Kit 1

8
MODEL: PA7550M
Air Hydraulic Pump
Service Parts
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
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File name: A6705_1701EXP
Date: 2017.01.13
Drawn By: 陳神佑
Checked By:
Approved By:
Model No. A6705

9
MODEL: PA7550M
Air Hydraulic Pump
Service Parts
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
No. Part No. Description Qty.
1 649-1-0050-101 Bolt 4
2 A67-3-1014-102 Control Valve Assy., Refer to Page #11 1
3 D05-6-1001-106 Nut 2
4 A67-6-1011-104 Handle 1
5 * Pad 1
6 A57-4-4002-108 Oil Outlet Valve Assy. 1
7 512-2-0043-108 Compressing Spring 1
8 601-7-0009-001 Steel Ball 1
9 * O-ring 1
10 H23-6-1000-102 Magnet 1
11 A67-6-1017-106 Oil Tank Cover 1
12 * Pad 1
13 A67-4-0005-102 Air Pump Assy., Refer to Page #10 1
14 * Pad 1
15 A57-3-6002-102 Reservoir 1
17 E05-3-9901-103 Drain Plug Assembly 1
18 * O-ring 3
19 512-2-0092-101 Compressing Spring 1
20 A57-4-5001-101 Air Entrance Valve Seat Assy. 1
21 A17-6-1105-103 Plug 1
22 A57-6-2062-108 Connector 1
23 649-1-0050-046 Bolt 2
24 * Copper Washer 18
25 649-1-0060-040 Bolt 18
26 A57-3-1900-109 Air Vent Assy. - Black 1
27 A57-3-5007-107 Plug Assy. - Red 1
28 649-1-0050-055 Screw 2
29 A67-6-1007-103 Foot Pedal 1
* A67-3-9903-103 Repair Kit 1

10
MODELS: A57-3-1027-103 & A67-4-0005-102
Air Hydraulic Pump
Service Parts
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
No.
Part No. for Model
Description Qty.
A57-3-1027-103
(PA7550)
A67-4-0005-102
(PA7550M)
1 N/A Valve Base 1
2 * Washer 2
3 A57-6-1003-107 Cylinder 1
4 A57-6-1002-105 Cylinder Cover 1
5 649-1-0060-122 Hex Bolt 4
6 A17-4-2100-500 Air Piston Assy. 1
7 512-2-0410-017 Compressing Spring 1
8 A57-6-1014-102 Cover 1
9 A27-3-2200-102 A57-3-1011-108 Piston Assy. 1
10 A27-6-2023-205 A57-6-2023-108 Bushing 1
11 * Back-Up Ring 1
12 * U-Cup 1
13 A57-6-1016-106 Washer 1
14 A58-6-1013-107 A59-6-1013-105 Cylinder 1
15 * Special Washer 1
16 520-8-0134-101 Filter 1
17 A57-5-1017-102 Oil Entrance Valve 1
18 * Special Washer 2
19 601-7-0008-009 Steel Ball 1
20 A59-3-1018-106 High Pressure Valve Assy. 1
21 601-7-0006-005 N/A Steel Ball 1
22 503-9-0050-106 N/A Steel Ball Block 1
23 644-1-0060-05311 N/A Screw 1
* A57-3-9916-104 Repair Kit 1
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Model No. A57-3-1027-103
Approved By:
Checked By:
Drawn By: 林建志
Date: 2008/09/18
File name: A57-3-1027-103_0809EXP

11
MODEL: A67-3-1014-102
Air Hydraulic Pump
Service Parts
SFA Companies 10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone] * Fax: [phone]
E-mail: [email protected] Website: www.bvahydraulics.com
No. Part No. Description Qty.
1 E05-6-1008-109 Handle 1
2 A67-6-1012-106 Operation Bar 1
3 641-1-0098-103 Screw 2
4 649-1-0080-003 Screw 4
5 601-4-0030-095 Spring Pin 1
6 A67-6-1001-202 Oil Outlet Valve 3
7 606-3-0008-101 Spring Washer 3
8 * Back-up Ring 3
9 * O-ring 3
10 649-1-0050-055 Screw 1
11 A67-6-1005-109 Control Valve Cover 1
12 644-1-0060-071 Screw 1
13 A67-6-1006-101 Bearing Washer 2
14 623-6-2542-104 Bearing 1
15 * O-ring 1
16 A17-6-1002-103 Silencer 1
17 666-5-0250-108 C-clip 1
18 N/A Valve Base 1
19 N/A Control Valve Base 1
20 A67-4-1003-103 Control Valve Group 1
20.1 * O-ring 2
20.2 N/A Control Valve Group 1
21 512-2-0046-104 Compressing Spring 2
22 601-7-0006-005 Steel Ball 2
* A67-3-9940-109 Control Base Assy Repair Kit 1
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File name: A67-3-1014-102_1701EXP
Date: 2017.01.13
Drawn By: 陳神佑
Checked By:
Approved By:
Model No. A67-3-1014-102

12
LIMITED LIFETIME WARRANTY
BVA Hydraulics®, represented in the United States by SFA Companies [“SFA”] warrants this product to be free from defects in
material and workmanship for the life of the product as long as the original purchaser owns the product. The warranty is non-
transferable and is subject to the terms, exclusions, and limitations described below:
• Damaged components, including but not limited to bent rams, dented or crushed cylinder walls, broken welds or couplers as
well as worn out seals, o-rings and springs are the result of misuse and not covered by warranty and BVA Hydraulics will not
provide any warranty credit for such damaged components.
• This warranty does not cover ordinary wear and tear, overloading, alterations (including repairs or attempted repairs not
performed by BVA Hydraulics or one of its authorized personnel), improper uid use, or use of the product in any manner for
which the product was not intended or the use of which is not in accordance with the instructions or warnings provided with
the product.
• In the unlikely event that a BVA Hydraulics product fails due to material defect in workmanship, you may contact SFA for
disposition. In such cases, the customer’s sole and exclusive remedy for any breach or alleged breach of warranty is limited
to the repair or replacement of the defective product.
• Under no circumstances is BVA Hydraulics liable for any consequential or incidental damage or loss whatsoever.
• THIS WARRANTY IS LIMITED TO NEW PRODUCTS SOLD THROUGH AUTHORIZED DISTRIBUTORS AND OTHER
CHANNELS DESIGNATED BY BVA HYDRAULICS. NO AGENT, EMPLOYEE OR OTHER REPRESENTATIVE OF BVA
HYDRAULICS IS AUTHORIZED TO MODIFY THIS WARRANTY.
• THE FOREGOING IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING
BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FOR A FITNESS FOR A PARTICULAR
PURPOSE.
• Components not manufactured by BVA Hydraulics including certain motor systems, gasoline engines, and others are not
covered by this warranty and instead are covered by the manufacturer’s separate manufacturer’s warranty provided in the
package.
• BVA Hydraulics’ liability in all cases is limited to, and will not exceed the purchase price paid for the product.
SFA Companies
10939 N. Pomona Ave. Kansas City, MO 64153
Tel: [phone]
E-mail: [email protected]