VERDER 810.0780 Instructions-Parts List Manual Download

Page: 14 / 28

819.0254

Troubleshooting

Relieve the pressure before checking or servicing the
equipment.

Check all possible problems and causes before
disassembling the pump.

WARNING

To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 11.

PROBLEM

CAUSE

SOLUTION

Pump cycles at stall or fails to hold
pressure at stall.

Worn check valve balls (16) or seats (17). Replace. See page 17.

Pump will not cycle, or cycles once and
stops.

Air valve is stuck or dirty.

Disassemble and clean air valve. See
pages 15 and 16. Use filtered air.

Check valve ball (16) severely worn and
wedged in seat (17) or manifold (1 or 3).

Replace ball and seat. See page 17.

Check valve ball (16) is wedged into seat
(17), due to overpressurization.

Install Pressure Relief Kit (see page 10).

Dispensing valve clogged.

Relieve pressure and clear valve.

Pump operates erratically.

Clogged suction line.

Inspect; clear.

Sticky or leaking check valve balls (16).

Clean or replace. See page 17.

Diaphragm (29) ruptured.

Replace. See pages 18 to 20.

Restricted exhaust.

Remove restriction.

Pump will not operate.

Foreign material in ball checks.

Clean ball check area.

Air bubbles in fluid.

Suction line is loose.

Tighten.

Diaphragm (29) ruptured.

Replace. See pages 18 to 20.

Loose manifolds (1, 3), or damaged seal
between manifold and seat (17).

Tighten manifold bolts (6) or replace seats
(17). See page 17.

Loose diaphragm shaft bolt (21).

Tighten. See pages 18 to 20.

Damaged o-ring (25).

Replace. See pages 18 to 20.

Fluid in exhaust air.

Diaphragm (29) ruptured.

Replace. See pages 18 to 20.

Loose diaphragm shaft bolt (21).

Tighten. See pages 18 to 20.

Damaged o-ring (25).

Replace. See pages 18 to 20.

Pump exhausts excessive air at stall.

Worn air valve block (13), o-ring (12), plate
(14), pilot block (9), or o-ring (27).

Repair or replace. See pages 15 and 16.

Worn shaft seals (22).

Replace. See pages 18 to 20.

Pump leaks air externally.

Air valve cover (7) or air valve cover
screws (8) are loose.

Tighten screws. See page 16.

Air valve gasket (10) or air cover gasket
(32) is damaged.

Inspect; replace. See pages 15 and 16, 21
and 22.

Air cover screws (6) are loose.

Tighten screws. See pages 21 and 22.

Pump leaks fluid externally from ball check
valves.

Loose manifolds (1, 3), or damaged seal
between manifold and seat (17).

Tighten manifold bolts (6) or replace seats
(17). See page 17.

Relief valve relieving (Fuel Dispense
Model 810.0781).

Air inlet pressure is too high.

Reduce inlet air pressure to below 50 psi
(3.5 bar).

In evacuation application, pump is not
drawing suction.

Pump should run at uniform speed.

Reduce inlet air pressure.

Summary of Contents for 810.0780

Page 1: ...ragms and balls fluoroelastomer seats Patent No CN ZL94102643 4 FR 9408894 JA 3517270 US 5 368 452 Important Safety Instructions Read all warnings and instructions in this manual Save these instructions This symbol on the nameplate means the product is listed by Underwriters Laboratories Inc UL Standard No 79 Standard for Power Operated Pumps for Petroleum Product Dispensing Systems II 2 GD Ex h I...

Page 2: ...0 Operation 11 Pressure Relief Procedure 11 Flush the Pump Before First Use 11 Starting and Adjusting the Pump 12 Pump Shutdown All Systems 12 Maintenance 13 Lubrication 13 Flushing and Storage 13 Tightening Threaded Connections 13 Preventive Maintenance Schedule 13 Troubleshooting 14 Service 15 Repairing the Air Valve 15 Ball Check Valve Repair 17 Diaphragm Repair 18 Bearing and Air Gasket Remova...

Page 3: ...maximum working pressure of the lowest rated component in your system Refer to the Technical Data on page 26 for the maximum working pressure of your equipment Use fluids and solvents which are compatible with the equipment wetted parts Refer to the Technical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings Do not kink or overbend hoses or use hoses to pull ...

Page 4: ...mproper grounding poor ventilation open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury Ground the equipment Refer to Grounding on page 5 If there is any static sparking or you feel an electric shock while using this equipment stop pumping immediately Do not use the equipment until you identify and correct the problem Provide fresh air ventilat...

Page 5: ...ire Y behind the grounding screw and tighten the screw securely See Fig 1 Connect the clamp end of the ground wire to a true earth ground Order Part No 819 0157 Ground Wire and Clamp Air and fluid hoses use only grounded hoses with a maximum of 500 ft 150 m combined hose length to ensure grounding continuity Air compressor follow manufacturer s recommendations Solvent pails Ground all solvent pail...

Page 6: ...during cleaning and repair c The air line filter F removes harmful dirt and moisture from the compressed air supply 2 Install a grounded flexible air hose A between the accessories and the 1 2 npt f pump air inlet N See Fig 6 Use a minimum 1 2 in 13 mm ID air hose Screw an air line quick disconnect coupler D onto the end of the air hose A and screw the mating fitting into the pump air inlet snugly...

Page 7: ...ired see page 5 for installation instructions Waste Oil Receiver Evacuation System or General Fluid Transfer Application Gear Oil Evacuation System KEY FOR FIG 3 A Air supply line B Bleed type master air valve required for pump C Air regulator D Air line quick disconnect E Master air valve for accessories F Air line filter G Fluid suction line H Fluid line quick disconnect J Fluid drain valve requ...

Page 8: ...uction line J Fluid drain valve required K Fluid shutoff valve L Fluid line T Hose reel V Fuel dispense valve Y Ground wire required see page 5 for installation instructions 46 Pressure relief valve required to limit fluid outlet pressure to 50 psi 350 kPa 3 5 bar Fluid from the relief valve 46 must be vented to a safe area 1 Fuel Dispense System WARNING Fuel Dispense Model 810 0781 requires a pre...

Page 9: ...g pilot lights and waste materials If the diaphragm ruptures the fluid being pumped will exhaust with the air VENTING EXHAUST AIR Fig 5 WARNING Be sure to read and follow the TOXIC FLUID HAZARD and FIRE AND EXPLOSION HAZARD warnings on page 4 before operating this pump Be sure the system is properly ventilated for your type of installation You must vent the exhaust to a safe place away from people...

Page 10: ...age 8 Overpressurization can also occur if the VA 25 pump is being used to feed fluid to a piston pump and the intake valve of the piston pump does not close causing fluid to back up in the outlet line 8 N U 5 Z Z 6 4 2653c 2 KEY 1 1 in npt f optional fluid outlet port 2 Fluid covers 3 1 in npt f optional fluid inlet port 6 Manifold and cover screws 8 Air valve screws N 1 2 in npt f air inlet port...

Page 11: ... the fluid you are pumping flush it thoroughly with a compatible solvent Follow the steps under Starting and Adjusting the Pump on page 12 WARNING PRESSURIZED EQUIPMENT HAZARD The equipment stays pressurized until pressure is manually relieved To reduce the risk of serious injury from pressurized fluid accidental spray from the gun or splashing fluid follow this procedure whenever you Are instruct...

Page 12: ...mp to provide good suction Increasing the pump cycle rate does not necessarily improve suction Gear Oil Evacuation Systems see Fig 3 1 Close the pump air regulator C and all bleed type master air valves B E 2 Attach an appropriate wand S to the suction hose P Place the wand in the differential or fluid to be pumped 3 Place the end of the fluid hose L into an appropriate container 4 Close the fluid...

Page 13: ... necessary Check to be sure all threaded connections are tight and leak free Check fasteners Tighten or retorque as necessary Although pump use varies a general guideline is to retorque fasteners every two months See Torque Sequence on page 25 Preventive Maintenance Schedule Establish a preventive maintenance schedule based on the pump s service history This is especially important for prevention ...

Page 14: ... in fluid Suction line is loose Tighten Diaphragm 29 ruptured Replace See pages 18 to 20 Loose manifolds 1 3 or damaged seal between manifold and seat 17 Tighten manifold bolts 6 or replace seats 17 See page 17 Loose diaphragm shaft bolt 21 Tighten See pages 18 to 20 Damaged o ring 25 Replace See pages 18 to 20 Fluid in exhaust air Diaphragm 29 ruptured Replace See pages 18 to 20 Loose diaphragm s...

Page 15: ...avity See Fig 8 4 Pull the two actuator pistons 30 out of the bearings 31 Remove the u cup packings 22 from the pistons Pull the push pins 26 out of the bearings 28 Remove the o rings 27 from the push pins See Fig 9 5 Inspect the valve plate 14 in place If damaged use a Torx T20 screwdriver or 7 mm 9 32 in socket wrench to remove the three screws 8 Remove the valve plate 14 and seal 15 See Fig 10 ...

Page 16: ...face the narrow end of the pistons See Fig 9 6 Lubricate the u cup packings 22 and actuator pistons 30 Insert the actuator pistons in the bearings 31 wide end first Leave the narrow end of the pistons exposed See Fig 9 7 Install the pilot block 9 so its tabs snap into the grooves on the ends of the push pins 26 See Fig 8 8 Grease the o ring 12 and install it in the valve block 13 Push the block on...

Page 17: ...utlet manifold 1 to the fluid covers 2 See Fig 14 4 Remove the seats 17 and balls 16 from the manifold 5 Turn the pump over and remove the inlet manifold 3 Remove the seats 17 and balls 16 from the fluid covers 2 Reassembly 1 Clean all parts and inspect for wear or damage Replace parts as needed 2 Reassemble in the reverse order following all notes in Fig 14 Be sure the ball checks are assembled e...

Page 18: ...e the pressure 2 Remove the manifolds and disassemble the ball check valves as explained on page 17 3 Using a 10 mm socket wrench remove the screws 6 holding the fluid covers 2 to the air covers 4 Pull the fluid covers 2 off the pump See Fig 11 Fig 11 WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 11 ...

Page 19: ...4 as follows a Install the o ring 25 on the shaft bolt 21 b Install the fluid side diaphragm plate 20 on the bolt so the rounded side faces the diaphragm 29 c Install the diaphragm 29 on the bolt Make certain the side marked AIR SIDE faces the center housing 5 d Install the air side diaphragm plate 20 so the rounded side faces the diaphragm 29 e Apply medium strength blue Loctite or equivalent to ...

Page 20: ...hragms in Place Cutaway View with Diaphragms Removed Lips face out of housing 5 Rounded side faces diaphragm 29 Air side must face center housing 5 Grease Apply medium strength blue Loctite or equivalent Torque to 20 to 25 ft lb 27 to 34 N m 1 2 3 4 5 ...

Page 21: ...e Fig 12 Reassembly 1 If removed install the shaft u cup packings 22 so the lips face out of the housing 5 2 The bearings 23 28 and 31 are tapered and can only be installed one way Insert the bearings into the center housing 5 tapered end first Using a press or a block and rubber mallet press fit the bearing so it is flush with the surface of the center housing 3 Reassemble the air valve as explai...

Page 22: ...Fig 13 Detail of Air Valve Bearings Insert bearings tapered end first Press fit bearings flush with surface of center housing 5 Apply medium strength blue Loctite or equivalent Torque to 120 to 150 in lb 14 to 17 N m 1 2 3 ...

Page 23: ...s and Seats Acetal Balls Part No 810 0930 with TF Diaphragms and Balls Fluoroelastomer Seats Fig 14 03532C 8 7 10 11 30 22 27 26 9 12 8 13 14 15 26 27 31 22 30 32 43 36 5 22 23 4 24 6 20 44 29 20 25 21 35 38 6 1 35 16 17 6 2 16 17 35 6 3 35 28 A 1 Arrow A must point toward outlet manifold 1 1 ...

Page 24: ...or Model 810 0780 819 1068 SEAT ball fluoroelastomer 4 For Model 810 0930 20 819 4373 PLATE diaphragm aluminum 4 21 819 4482 BOLT hex hd M12 x 1 75 35 mm 1 38 in long 2 Ref No Part No Description Qty 22 819 4284 PACKING u cup nitrile 4 23 819 4291 BEARING shaft acetal 2 24 819 4369 SHAFT diaphragm stainless steel 1 25 819 4304 O RING PTFE 2 26 819 4288 PIN push stainless steel 2 27 819 4289 O RING...

Page 25: ...llow the torque sequence 1 Left Right Fluid Covers Torque bolts to 120 150 in lb 14 17 N m SIDE VIEW 2 Inlet Manifold Torque bolts to 120 150 in lb 14 17 N m BOTTOM VIEW 3 Outlet Manifold Torque bolts to 120 150 in lb 14 17 N m TOP VIEW 4 2 7 5 3 6 8 1 9 12 11 10 13 16 15 14 ...

Page 26: ... kg Loctite is a registered trademark of the Loctite Corporation Noise levels measured with the pump mounted on the floor using Rubber Foot Kit 819 4333 Sound power measured per ISO Standard 9216 Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head To supply 20 gpm 76 liters fluid flow horizontal scale at 40 psi 0 28 MPa 2 8 bar discharge head pr...

Page 27: ...WARRANTY DISCLAIMER VERDER has made an effort to illustrate and describe the products in the enclosed brochure accurately however such illustrations and descriptions are for the sole purpose of identification and do not express or imply a warranty that the products are merchantable or fit for a particular purpose or that the products will necessarily conform to the illustration or descriptions PRO...

Page 28: ...LO LQIR YHUGHU KX QGLD 9HUGHU QGLD 3XPSV 3YW WG 3ORW 1R ORFN 0 KLQFKZDG 3XQH 1 H PDLO 6DOHV YHUGHU FR LQ ZZZ YHUGHU FR LQ WDO 9HUGHU WDOLD 9LD 0DHVWUL HO ODYRUR 9D LD 5LHWL 7 7HO H PDLO LQIR YHUGHU LW 7KH 1HWKHUODQGV 9HUGHU 9 HQLQJUDGZHJ 1 73 URQLQJHQ 7 1 7 5 1 6 7HO D H PDLO LQIR YHUGHU QO 3RODQG 9HUGHU 3ROVND XO 3RUFHODQRZD 3 ದ DWRZLFH 32 1 7HO D H PDLO YHUGHU YHUGHU SO 5RPDQLD 9HUGHU 5RP QLD UX...

Search results

Summary of Contents for 810.0780

Reviews:

Related manuals for 810.0780

Brands by name

Popular brands

VERDER 810.0780, Instructions-Parts List Manual

Search results

Summary of Contents for 810.0780

Reviews:

Related manuals for 810.0780

Brands by name

Popular brands