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Troubleshooting 

14

3A8693B

Troubleshooting

1.

Follow Pressure Relief Procedure, page 12, 
before checking or repairing the equipment.

2.

Check all possible problems and causes before 
disassembling equipment.

Problem

Cause

Solution

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

Worn check valve flappers (116), seats (115) 
or gaskets (112, 114).

Replace. See page 16.

Equipment will not cycle, or 
cycles once and stops.

Air valve is stuck or dirty.

Disassemble and clean air valve. See 
page 21. Use filtered air.

Check valve flapper (116) is stuck.

Replace flapper and seat. See 
page

 16.

Check valve flapper (116) is stuck due to 
overpressurization.

Install Pressure Relief Valve. See 
page

 11.

Dispensing valve clogged.

Relieve pressure and clear valve.

Equipment cycles but will 
not prime or no flow.

Excessive suction lift.

Ensure the suction lift does not exceed 
the maximum listed in Technical 
Specifications
, page

 

32. To aid with 

priming, fill the chambers with liquid.

Equipment operates 
erratically.

Clogged suction line.

Inspect; clear.

Sticky or leaking check valve flapper (116).

Clean or replace. See page 16.

Diaphragm ruptured.

Replace. See page 18.

Restricted exhaust.

Remove restriction.

Air bubbles in fluid.

Supply line is loose.

Tighten.

Diaphragm ruptured.

Replace. See page 18.

Loose inlet manifold components, damaged 
gasket (121) between manifold components, 
or damaged check valve gaskets (112, 114).

Tighten manifold bolts (120) or replace 
seats (115) or gaskets (112, 114, or 
121). See page 16.

Loose diaphragm shaft bolt (107).

Tighten or replace. See page 18.

Damaged o-ring (108).

Replace. See page 18.

Fluid in exhaust air.

Diaphragm ruptured.

Replace. See page 18.

Loose diaphragm shaft bolt (107).

Tighten or replace. See page 18.

Damaged o-ring (108).

Replace. See page 18.

Equipment exhausts 
excessive air at stall.

Worn air valve block (7), o-ring (6), plate (8), 
pilot block (18), u-cups (10), or pilot pin o-rings 
(17).

Repair or replace. See page 21.

Worn shaft seals (402).

Replace. See page 18.

Summary of Contents for Aluminum Husky 2150 LP

Page 1: ...t for use in sanitary applications For professional use only 120 psi 0 8 MPa 8 bar Maximum Fluid Working Pressure 120 psi 0 8 MPa 8bar Maximum Air Input Pressure See page 2 for model information inclu...

Page 2: ...arts 26 Kits and Accessories 28 Torque Instructions 29 Torque Sequence 29 Performance Charts 30 Dimensions 31 Technical Specifications 32 California Proposition 65 33 Graco Standard Husky Pump Warrant...

Page 3: ...only Do not alter or modify equipment Alterations or modifications may void agency approvals and create safety hazards Make sure all equipment is rated and approved for the environment in which you ar...

Page 4: ...contain chemicals that can react with aluminum Contact your material supplier for compatibility TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the e...

Page 5: ...ible See Models page 2 or check with your local supplier ID Sample Configuration Number 2150LP PA01AA1FB BBNBN 2150 LP P A01A A1 FB B BN BN Pump Model Wetted Section Material Drive Center Section and...

Page 6: ...y line J Fluid drain valve required not supplied K Fluid shutoff valve L Flexible conductive fluid outlet line N Air inlet port R Fluid inlet port S Fluid outlet port Y Ground wire 1 2 in npt f port F...

Page 7: ...hind the grounding screw and tighten the screw securely Connect the clamp end of the ground wire to a true earth ground 02646E Y W Air and fluid lines Use only conductive lines with a maximum of 500 f...

Page 8: ...diameter If a line longer than 15 ft 4 57 m is required use a larger diameter line Avoid sharp bends or kinks in the line 3 Place a conductive grounded container U at the end of the air exhaust line t...

Page 9: ...V relieves fluid pressure in the fluid line See FIG 5 Fluid shutoff valve K shuts off fluid flow 1 Install flexible conductive fluid lines G and L 2 Install a fluid drain valve J in the fluid outlet l...

Page 10: ...p relative to the liquid level in the supply b Reduce the friction length of the suction lines Remember that fittings add friction length to the lines Reduce the number of fittings to reduce the frict...

Page 11: ...113 Center manifold FIG 4 Fluid Inlet and Outlet Port Orientation 101 101 113 113 Apply medium strength blue thread locker to the threads Torque to 50 60 in lb 5 65 6 78 N m See Torque Sequence page...

Page 12: ...utlet line L to the fluid outlet port S and route the line to the end container 5 Close the fluid drain valve J 6 Turn the air regulator C to the lowest air pressure setting and open the bleed type ma...

Page 13: ...Always cycle the equipment during the entire flushing process Always perform the Pressure Relief Procedure page 12 and flush the equipment before storing it for any length of time 1 Perform the Pressu...

Page 14: ...d in Technical Specifications page 32 To aid with priming fill the chambers with liquid Equipment operates erratically Clogged suction line Inspect clear Sticky or leaking check valve flapper 116 Clea...

Page 15: ...ipment leaks fluid externally from flapper check valves Over torqued center manifold bolts 120 causing the joint between the fluid cover 101 and manifolds 102 103 to separate Or loose joint between ma...

Page 16: ...nents 4 Remove all check valve components and gaskets 121 NOTE Pay attention to the orientation of the check valve components for reassembly 5 Clean and inspect all parts for wear or damage Replace as...

Page 17: ...24 9 N m See Torque Sequence page 29 1 119 118 117 116 112 115 114 114 115 112 116 117 118 119 121 121 Seat and check valve components Seat and check valve components 2 3 2 2 3 Apply medium strength b...

Page 18: ...Replace as needed Reassemble Diaphragms 1 Assemble the diaphragm plates 104 105 packing o ring 108 and diaphragm 401 onto the diaphragm shaft bolt 107 See FIG 9 NOTE Install diaphragms 401 with the s...

Page 19: ...Section Apply medium strength blue thread locker to the threads Torque to 190 220 in lb 21 25 N m See Torque Sequence page 29 1 2 Circular outlet hole must be at the base of the equipment 1 1 1 106 1...

Page 20: ...diaphragms removed 1 2 105 5 107 3 401 7 104 4 24 19 1 402 1 Lips face out of housing 1 Rounded side faces diaphragm 401 AIR SIDE must face center housing 1 Grease Apply medium strength blue thread l...

Page 21: ...e center position and pull it out of the cavity 5 Remove the valve block 7 and o ring 6 from the carriage 6 Use a needle nose pliers to pull the pilot block 18 straight up and out of the cavity See FI...

Page 22: ...actuator pistons 11 Reach inside the cavity and insert the actuator pistons into the bearings 12 wide end first Leave the narrow end of the pistons exposed See FIG 12 9 Grease the lower face of the p...

Page 23: ...earings 19 were removed reach into the center housing 1 with an o ring pick to hook the u cup packings 402 Remove u cup packings from the housing 9 Inspect parts for wear or damage Replace as necessar...

Page 24: ...23 3 Insert bearings tapered end first 1 2 Press fit bearings flush with surface of center housing 1 Apply medium strength blue thread locker to the threads Torque to 120 150 in lb 14 17 N m 3 19 25...

Page 25: ...Parts 3A8693B 25 Parts Air Section Parts 24 23 25 22 12 15 19 1 20 3 2 4 5 10 11 7 3 8 9 6 18 16 17 402...

Page 26: ...Parts 26 3A8693B Fluid Section Parts 120 102 120 103 112 115 114 119 118 117 116 101 119 118 117 116 107 108 105 401 104 121 113 122 123 124 111 110 106 120 121 113 125...

Page 27: ...escription Qty 101 20A298 COVER fluid aluminum 2 102 20A296 MANIFOLD inlet aluminum 1 103 20A297 MANIFOLD outlet aluminum 1 104 189298 PLATE air side aluminum 2 105 189820 PLATE fluid side carbon stee...

Page 28: ...25U696 116 VALVE flapper 4 117 SPACER flapper 4 Kit No Includes Refs Description Qty 25U702 118 BRACKET flapper 4 119 SCREW cap socket head M6 x 1 0 30 mm 8 Kit No Includes Refs Description Qty 25U70...

Page 29: ...orque sequence to turn down each fastener until the fastener head contacts the equipment 3 Follow the torque sequence to turn each screw by 1 2 turn or less until at specified torque Torque Sequence F...

Page 30: ...ad air consumption A C B D 0 20 1 4 0 14 0 20 76 40 151 60 227 80 303 100 379 120 454 140 530 160 606 40 2 8 0 28 60 4 1 0 41 80 5 5 0 55 100 6 9 0 69 120 8 3 0 83 FLUID FLOW gpm lpm Pump tested in wa...

Page 31: ...ver A B C D E F G H J K L M N in 23 31 20 86 17 73 3 16 13 40 6 70 23 29 11 64 13 81 17 69 11 01 13 95 8 89 mm 592 1 529 8 450 3 80 3 340 4 170 2 591 6 295 7 350 8 449 3 279 7 354 3 225 8 Dimensions c...

Page 32: ...meters Wet 30 ft 9 14 meters Fluid flow per cycle Standard Diaphragms 1 gallon 3 79 liters Noise dBa Maximum sound pressure 90 dBa at 100 psi 0 69 MPa 6 9 bar at 50 cpm Inlet Outlet Sizes Air inlet s...

Page 33: ...ost restricted wetted component Operating at a fluid temperature that is too high or too low for the components of your equipment may cause equipment damage Diaphragm Check or Seat Material Fluid Temp...

Page 34: ...fect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER...

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