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Hydraulic Comparison Test Pump 

 

Maintenance and Servicing 

15 

5.

 

To completely disassemble the reservoir, the top plate must be removed from the 

instrument case. 

6.

 

Disconnect the high-pressure tubing by unscrewing the gland nuts fitted to the 

reservoir body (12). 

7.

 

The low pressure feed to the priming pump is disconnected by pressing down on the 

black plastic ring at the top of the connector, and gently pulling on the nylon tubing. 

8.

 

Remove valve stem completely by turning counter-clockwise, taking care not to lose 

the spring (2) and nylon washer (3). 

9.

 

Lift off reservoir cover (4). 

10.

 

Remove three screws from reservoir spacers that hold the assembly to the top plate.  

The assembly can now be withdrawn from the underside of the top plate. 

11.

 

The reservoir body (12) and reservoir cap (5) are a close fit to the reservoir tube (7), 

and both rely on the O-ring seal (6) to hold them in place. These parts can be 

separated by gently pulling them apart. 

12.

 

The valve vent (10) is disassembled from the reservoir body by removing the three 

screws (8). 

13.

 

Reassembly is the reverse of the above procedure. 

 

7

8

9

10

11

12

13

14

15

6

1

2

3

4

5

6

 

gkx12.eps 

Figure 11. Reservoir Assembly 

Summary of Contents for P5515

Page 1: ...P5515 P5515 V P5515 EP Hydraulic Comparison Test Pump Users Manual Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 2: ......

Page 3: ...aintenance and Servicing 8 Top Plate Removal 8 Screw Pump Assembly 9 Priming Pump Assembly 11 Disassembly 11 Reassembly 11 Check Valves 13 Inlet Check Valve 13 Outlet Check Valve 13 Reservoir Assembly 14 Fault Finding 16 System Will Not Prime 16 System Will Not Pressurize 16 Priming Pump Malfunction 17 Cannot Reach Maximum Pressure 17 Pressure Falls Away 17 Storage and Transportation 17 Ancillary ...

Page 4: ...P5515 P5515 V P5515 EP Users Manual ii ...

Page 5: ...Page 1 Symbols 3 2 Increased Fluid Compatibility Models 3 3 Test Port Insert Parts 7 4 Screw Pump Assembly Parts List 10 5 Priming Pump Assembly Parts List 13 6 Check Valve Assemblies Parts List 14 7 Reservoir Assembly Parts List 16 ...

Page 6: ...P5515 P5515 V P5515 EP Users Manual iv ...

Page 7: ...apter 4 3 Mount Gauge 5 4 Adjust Gauge Position 5 5 Tighten Gauge 6 6 Do Not Over Tighten 6 7 Test Port Insert 7 8 Screw Pump Assembly 10 9 Priming Pump Assembly 12 10 Check Valve Assemblies 14 11 Reservoir Assembly 15 12 Angle Adapter 18 13 Pointer Remover Punch 18 14 Liquid Separator 19 ...

Page 8: ...P5515 P5515 V P5515 EP Users Manual vi ...

Page 9: ...used for checking pressure measuring instruments against Master Test Gauges Note The terms Master Test Gauge and Gauge in this document refer to any pressure measuring instrument such as Transfer Standards Digital Calibrators and Transducers This system is only as accurate as the Master Test Gauge used The Master Test Gauge must be regularly calibrated on a Primary Reference Standard such as a Dea...

Page 10: ...iquid Use of compressed liquids can create an environment of propelled foreign matter Pressure system safety precautions apply to all ranges of pressure Care must be taken during testing to ensure that all hydraulic connections are properly and tightly made prior to applying pressure Personnel must wear eye protection to prevent injury Personal Protective Equipment Wear eye protection approved for...

Page 11: ...particles appear in the reservoir the system should be drained and flushed with clean fluid Operating Fluid Compatibility W Caution The standard system is designed for use with a wide range of fluids however the reservoir tube is Acrylic and the O ring seals are Nitrile use of solvents fuel oils brake fluids or other similar aggressive fluids can damage the seals and the reservoir tube The table b...

Page 12: ... to threads or sealing faces Before connection ensure that there is an O ring fitted to the test port Check that the sealing face of the device to be fitted is clean and undamaged as scratches or dents can form leak paths Note The thread on the test port and the lower part of the gauge adapters is LEFT HANDED The following procedure details the correct method for mounting devices using these adapt...

Page 13: ...st Pump Connections 5 gkx03 bmp Figure 3 Mount Gauge gkx05 bmp Figure 4 Adjust Gauge Position 3 To adjust the position to face forward hold the gauge adapter and turn the instrument COUNTER CLOCKWISE so that it faces forward ...

Page 14: ... V P5515 EP Users Manual 6 gkx06 bmp Figure 5 Tighten Gauge 4 Hold the instrument steady while turning the gauge adapter COUNTER CLOCKWISE until it pulls down onto the O ring gkx07 bmp Figure 6 Do Not Over Tighten ...

Page 15: ...gure 7 1 2 3 4 gjn012 eps Figure 7 Test Port Insert Table 3 Test Port Insert Parts Part Item Description P5515 P5515 V P5515 EP 1 O Ring 3865142 3865163 3867888 2 Test Port Insert 3919892 3 O Ring 3883397 3883521 3867895 4 Test Port 3921414 To calibrate panel mounted gauges with pressure connections in the rear use an Angle Adapter see Chapter 8 Ancillary Equipment Priming 1 Open reservoir valve o...

Page 16: ...h that of the master gauge 4 For the next higher calibration point repeat from step 1 above 5 To measure reducing pressures turn the screw press out counter clockwise 6 Depressurize the system by turning the screw press FULLY OUT then open the reservoir valve W Caution Never release the system pressure by using the reservoir valve alone as sudden depressurization will shock the system which may ca...

Page 17: ... new anti extrusion ring can be wound into the groove in the rambler behind the rambler seal 7 If it is necessary to remove the barrel 4 the locknut 3 must be loosened approximately turn The barrel can then be unscrewed from the test station 1 Note It is often easier to remove the barrel support bracket 5 to allow greater movement remove the 2 screws from the upper side of the top plate 8 Before r...

Page 18: ...ew Pump Assembly Parts List Part Item Description P5515 P5515 V P5515 EP 1 Test Port 3921414 2 O Ring 3864922 3865332 3865565 3 Barrel Locknut 3921438 4 Barrel 3921450 5 Barrel Support 3821492 6 O Ring 3867566 3867920 3867901 7 Back Up Ring 3919118 8 Rambler 3919129 9 Ball 3917855 10 Lead Screw Assembly 3885994 ...

Page 19: ...ler seal can be eased over the front of the rambler and into the groove 10 Similarly the new anti extrusion ring can be wound into the groove in the rambler behind the rambler seal 11 If it is necessary to remove the barrel 12 the locknut 11 must be loosened approximately turn The barrel can then be unscrewed from the pump block assembly 14 Reassembly 1 Before re fitting the barrel ensure that the...

Page 20: ...P5515 P5515 V P5515 EP Users Manual 12 1 3 4 5 6 7 8 9 10 11 11 14 12 13 2 gkx10 eps Figure 9 Priming Pump Assembly ...

Page 21: ...p of the connector and gently pulling on the tubing 2 Unscrew and remove connector 3 Remove check valve assembly 9 4 When replacing the check valve assembly take care to remove all traces of PTFE or Teflon sealing tape on the mating threads of elbow 7 New tape or similar sealing method must be applied to ensure a pressure tight joint 5 Reassembly is the reverse of removal Outlet Check Valve 6 Remo...

Page 22: ...ng 3920600 6 Pump Check Flange 3921744 7 Screw 3909261 8 Elbow 3862616 9 Check Valve 3867767 3966453 3966468 10 Connector 3923564 Reservoir Assembly 1 To drain the fluid from the reservoir raise the instrument a few inches by placing suitably sized blocks under the feet 2 Place a suitable catchment tray or bowl below the reservoir drain 15 3 Open the valve by turning valve stem 1 counter clockwise...

Page 23: ...er clockwise taking care not to lose the spring 2 and nylon washer 3 9 Lift off reservoir cover 4 10 Remove three screws from reservoir spacers that hold the assembly to the top plate The assembly can now be withdrawn from the underside of the top plate 11 The reservoir body 12 and reservoir cap 5 are a close fit to the reservoir tube 7 and both rely on the O ring seal 6 to hold them in place Thes...

Page 24: ...3089 Fault Finding System Will Not Prime 1 Check reservoir valve is closed 2 Check for sufficient fluid in reservoir 3 Check for damaged missing dirty O ring on test ports 4 Check that the face of the DUT is contacting the O ring and that the surface is not scored or dented System Will Not Pressurize 1 Ensure correct valve operation during priming process 2 Check DUT is not leaking 3 Clean system ...

Page 25: ...LY OUT and the priming pump is used for initial pressurization 2 If the DUT has a large internal volume or there is air in the system then re prime Refer to Chapter 3 increasing the initial pressurization with the priming pump from 100 psi 7 bar to at least 200 psi 14 bar Pressure Falls Away Large sudden changes in pressure will cause the system temperature to rise or fall which can cause instrume...

Page 26: ...ould be used The angle adapter fits directly onto the test station converting it through 90 degrees allowing the standard adapters to be used gkx13 bmp Figure 12 Angle Adapter Pointer Remover Punch P5551 To remove and refit the pointer of a pressure gauge use a pointer remover punch This tool has a spring loaded plunger to quickly and consistently refit the pointer gkx14 bmp Figure 13 Pointer Remo...

Page 27: ...tor is used to separate the working fluid of the deadweight tester to which it is fitted from the working fluid in the device under test This prevents contamination of either hydraulic system and allows calibration of the device in its specific working fluid gkq21 bmp Figure 14 Liquid Separator ...

Page 28: ...P5515 P5515 V P5515 EP Users Manual 20 ...

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