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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  fluid  under 

no load conditions and easy pumping in loaded conditions. 

Pump  supplies  compressed  hydraulic  fluid  to  compatible 

single or double-acting cylinder, anywhere that 10,000 PSI 

of fluid 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  specific  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 qualified 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

Summary of Contents for PA7550

Page 1: ...ail sales bvahydraulics com 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 觀圖 Checked By Drawn By 陳神佑 Date 2017 01 13 File name A6705_1701OUT ...

Page 2: ...ort 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 ...

Page 3: ...lways 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 person...

Page 4: ... Port A Port B Position 1 Pressurized oil flows to port B port A returns flow to tank P T P T P T Position 2 Neutral portss A and B are closed Hold Position Position 1 Pressurized oil flows to port A port B returns flow 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 dama...

Page 5: ...pressurize pump and hose remove application then fill fluid to proper level Poor performance Fluid level in pump is low Ensure proper fluid level MAINTENANCE NOTICE Use premium quality hydraulic jack fluid Never use brake fluid transmission fluid 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 Ins...

Page 6: ... 64153 Tel 888 332 6419 Fax 816 448 2142 E mail sales bvahydraulics com Website www bvahydraulics com 26 24 27 14 31 32 33 35 22 23 20 19 16 18 17 30 21 1 2 3 8 4 5 6 10 9 7 15 13 14 11 12 25 36 28 29 34 10 File name A5727_1701EXP Date 2017 01 13 Drawn By 陳神佑 Checked By Approved By Model No A5727 ...

Page 7: ... 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 ...

Page 8: ...nsas City MO 64153 Tel 888 332 6419 Fax 816 448 2142 E mail sales bvahydraulics com Website www bvahydraulics com 12 13 23 21 18 24 25 11 14 15 3 29 28 27 1 6 2 4 5 22 18 19 17 7 8 9 20 20 26 10 File name A6705_1701EXP Date 2017 01 13 Drawn By 陳神佑 Checked By Approved By Model No A6705 ...

Page 9: ...pring 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 Connect...

Page 10: ...57 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 ...

Page 11: ... 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 ...

Page 12: ...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 LIM...

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