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Troubleshooting 

8

312350L

Troubleshooting

Problem

Cause

Solution

Pump does not run.

Closed dispense valve.

Pump only runs with valve open.

Pressure too low.

Increase supply pressure using a 
pressure adjusting valve.

Insufficient hydraulic fluid supply.

Check hydraulic supply. Adjust to a 
maximum of 3 gpm (11 lpm) flow.

Clogged fluid outlet line, intake 
valve, dispense valve, suction line.

Relieve pressure, page 5. Check. 
Clear obstructions.

Reciprocator damaged.

Repair.

Pump speeds up or runs erratically.

Pump piston and/or intake valve 
worn.

Relieve pressure, page 5. Check 
and repair.

Empty supply container.

Refill and repair. Do not allow pump 
to run dry. Monitor closely or use a 
low-level cutoff valve.

Pump runs but output low on up 
and/or down stroke.

Pump piston and/or intake valve 
worn.

Relieve pressure, page 5. Check 
and repair.

Pump run but output low on both up 
and down strokes.

Insufficient hydraulic fluid supply.

Check hydraulic supply. Adjust to 
maximum 3 gpm (11 lpm) flow.

Pressure too low.

Increase supply pressure using a 
pressure adjusting valve.

Clogged fluid outlet line, intake 
valve, dispense valve, suction line.

Relieve pressure, page 5. Check. 
Clear obstructions.

Excessive weepage from weep tube 
(B), page 4.

Worn throat packings.

Repair.

Worn displacement seal.

Repair.

Hydraulic oil leaks from fittings in 
the upper or lower reciprocator 
blocks (31, 32) [Parts page 23].

Fittings 1, 5, 58, (Parts, page 23)
are loose, or their o-rings are worn 
or damaged.

Tighten the self-sealing fittings. If 
leaking persists, change o-rings.

Summary of Contents for Dyna-Star 247443

Page 1: ...psi 4 1 MPa 41 bar Maximum Hydraulic Input Pressure 7500 psi 51 MPa 517 bar Maximum Fluid Outlet Pressure Model 247540 Pump 60 lb Automatic Lube Pump Module Length Model 247443 Pump 120 lb Drum Length Model 247450 Pump 400 lb Drum Length Important Safety Instructions Read all warnings and instructions in this manual Save these instructions ti10604a Model 247443 Shown EN ...

Page 2: ...u identify and correct the problem Keep a working fire extinguisher in the work area EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury Do not operate the unit when fatigued or under the influence of drugs or alcohol Do not exceed the maximum working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals Use fluids and solvents...

Page 3: ...ards or covers removed Pressurized equipment can start without warning Before checking moving or servicing equipment follow the Pressure Relief Procedure and disconnect all power sources BURN HAZARD Equipment surfaces and fluid that is heated can become very hot during operation To avoid severe burns Do not touch hot fluid or equipment TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause se...

Page 4: ... F on the reciprocator Contact your Graco representative for line sizing Pressure Reducing Valve N Circulates excess hydraulic fluid pressure back to the hydraulic power sup ply Install this valve N in the hydraulic supply line with a drain hose W teed into the hydraulic return line F Limit supply pressure to a maximum 600 psi 4 1 MPa 41 bar Accumulator P Reduces hammering effect caused by the mot...

Page 5: ...pensing accidentally For the following instructions see FIG 2 1 Shut off hydraulic power supply 2 Close supply line shut off valve L 3 Open dispensing valve to relieve pressure 4 Open pump outlet drain valve Have a container ready to catch drainage 5 Close return line shut off valve H 6 If you suspect the nozzle or hose is completely clogged or that pressure has not been fully relieved after follo...

Page 6: ...Hydraulic return line minimum 3 4 inch I D required G Hydraulic outlet 3 4 npt f H Return line shut off valve minimum 3 4 inch required J Hydraulic inlet 3 4 npt m K Tee 3 4 npt L Supply line shut off valve required M Pressure gauge N Pressure reducing valve required in systems over 600 psi 4 1 MPa 41 bar P Accumulator Q Flow control valve required in systems over 3 gpm 11 lpm R Hydraulic supply l...

Page 7: ...or property damage as a result of rupture fire and or explosion The maximum working pressure of each component in the system may not be the same To reduce the risk of overpressurizing any component in the system Be sure you know the maximum working pressure of each component Never exceed the maximum working pressure of the lowest rated component in the system Do not exceed the maximum pump cycle r...

Page 8: ...closely or use a low level cutoff valve Pump runs but output low on up and or down stroke Pump piston and or intake valve worn Relieve pressure page 5 Check and repair Pump run but output low on both up and down strokes Insufficient hydraulic fluid supply Check hydraulic supply Adjust to maximum 3 gpm 11 lpm flow Pressure too low Increase supply pressure using a pressure adjusting valve Clogged fl...

Page 9: ...IG 4 in the lowest possible position 2 Relieve pressure page 5 3 Disconnect fluid outlet hose C FIG 2 page 6 from displacement pump 4 Slowly loosen hydraulic supply fitting 60 and return fitting 5 FIG 4 Remove hoses 5 Install plugs in tube fittings and hose ends 6 Clamp reciprocator pump assembly in a vise FIG 3 Use of a hydraulic power supply with fluid temperatures above 154 F 68 C can create ho...

Page 10: ...lacing Throat Seals NOTE Replace throat seals if fluid leaks excessively through the weep tube B FIG 2 page 6 This proce dure can be done without disassembling entire recipro cator Disassembly 1 Relieve pressure page 5 2 Disconnect reciprocator from displacement pump see Removing Displacement Pump from Recipro cator page 9 3 Remove four capscrews 15 and washers 27 from bottom of pump adapter 8 Tap...

Page 11: ...om bottom of motor housing 43 and remove motor housing from bottom cylinder cap 32 6 Loosen nut 45a on both ends of fluid tube 45 FIG 9 7 Use a wrench to loosen elbow 1 and tee 60 Remove fluid tube 45 Install plug in each fitting to prevent contamination FIG 10 FIG 7 FIG 8 11 44 8 46 43 32 16 52 FIG 9 FIG 10 45a 45a 45 60 1 45 ...

Page 12: ...rom bottom of cylinder cap 32 Reassembly Use Kit 247455 Use all new parts included in the kit 1 Install seal 16 in bottom of cylinder cap 32 in the orientation shown in FIG 13 2 Reassemble cylinder cap 32 to motor housing 43 Install lock washers 52 and cap screws 46 FIG 13 Torque the capscrews to 28 32 ft lb 38 to 43 N m NOTE When attaching the motor housing 43 onto the bottom cylinder cap 32 be s...

Page 13: ...port 32b in the bottom cylinder cap 32 are in line with each other Be sure o rings 13 are in place in the top and bottom cylinder caps as shown in FIG 15 5 Install lock washers 37 and nuts 36 onto tie rods 38 Torque nuts to 28 32 ft lbs 38 43 N m FIG 16 6 Install pump adapter 8 to motor housing 43 Install the lockwashers 27 and capscrews 15 Torque capscrews to 170 180 in lbs 19 20 N m 7 Reinstall ...

Page 14: ...d sealant and Loctite Primer T or Perma Loc 115 thread sealant and Perma Bond Surface Conditioner I are required Be sure their shelf life is within the manufacturer s recommendations For Step 8 page 16 use Loctite 609 on yoke 9 and rod 12 On all other threaded surfaces use Loctite 242 or Perma Loc 115 as required Disassembly 1 Drain oil out of reciprocator 2 Relieve pressure page 5 3 Disconnect re...

Page 15: ...ic head mallet to tap the bot tom of the displacement rod 35 and loosen cylin der 25 10 Grasp top of cylinder cap 31 and pull the displace ment rod 35 out of the cylinder 25 Lay assembly on its side NOTE It is not necessary to remove tie rods 38 from the bottom cylinder cap 32 11 Place a clean rag around yoke 9 to prevent losing detent balls 7 and spring 6 installed in the valve stop 26 Lightly pu...

Page 16: ... bottoms out on the rod s shoulder FIG 23 3 If valve yoke 9 was removed from trip rod 12 during the disassembly procedure apply Loctite 609 thread sealant to first two or three internal threads of yolk 9 4 Apply Primer to external threads of trip rod 12 Allow Primer 3 4 minutes to dry Install trip rod to yoke 9 Torque to 54 56 in lbs 6 1 to 6 3 N m Remove excess sealant 5 Apply Loctite 242 or Perm...

Page 17: ... assembly down into tool Make sure balls 7 snap into upper set of holes C in yoke 9 and curved ends of guide clamp have engaged valve sleeve 29 groove Slide tool D back over rod 12 to remove it FIG 24 14 Place adapter 43 in a vise Install seals as described in Replacing Throat Seal Reassembly instructions page 12 15 Reassemble cylinder cap 32 to motor housing 43 Install lock washers 52 and cap scr...

Page 18: ...nt rod 35 on the assembled reciprocator is exposed so the pump can be connected to it Displacement Pump Repair Disassembly Be sure you have all necessary parts on hand before you start If using a repair kit use all parts in the kit for the best results Displacement Pump Repair Kit 241623 is available Parts included in the kit are marked with a dagger symbol in the parts drawing and list page 25 1 ...

Page 19: ...od to the piston to 25 30 ft lb 34 41 N m 5 Install bearing 111 and seal 112 with lips facing up in pump cylinder 109 Screw retainer seal 113 into pump cylinder 109 6 Screw together pump cylinder 109 and extension tube 114 Use a 7 8 inch crow foot wrench on retainer seal 113 torque to 45 55 ft lb 61 75 N m FIG 27 7 Use a wrench to screw together piston shovel 116 and shovel rod 108 Torque to 115 1...

Page 20: ...hread into pump adapter 8 Use a 7 8 inch crow foot wrench on retainer seal 113 torque to 45 55 ft lb 61 75 N m FIG 27 6 Use a strap wrench to screw together shovel tube 117 and pump cylinder 109 7 Connect hydraulic supply and return hoses to fit tings 5 60 FIG 30 FIG 31 114 8 107 204 35 107 113 117 To reduce risk of static sparking be sure to reconnect ground wire before operating pump ...

Page 21: ... retainer 1 104 114171 PACKING u cup 1 106 100065 BALL 2 107 15R104 ROD connecting model 247540 1 15M382 ROD connecting model 247443 1 15M445 ROD connecting model 247450 1 108 192540 ROD shovel 50 1 1 109 192538 CYLINDER pump 50 1 1 110 192533 GASKET seal 1 111 192534 BEARING 1 112 114178 PACKING u cup 1 113 192531 RETAINER seal 1 114 15R103 TUBE spacer model 247540 1 15M381 TUBE spacer model 2474...

Page 22: ...ew Using nut 113 torque the pump cylinder 109 to the extension tube 114 at 45 to 55 ft lb 61 to 75 N m 1 Torque the shovel rod 108 to the piston 102 at 25 to 30 ft lb 34 to 41 N m 3 Torque the piston 102 to the extension rod 107 at 25 to 30 ft lb 34 to 41 N m 4 1 4 7 3 7 Assemble with lips facing up 7 ti10608a ti10609a ...

Page 23: ...8 26 1a 43 16 35 44 8 28 27 15 46 52 11 19 31 4 5 3 6 5 5 1 6 6 2 Torque to 170 180 in lbs 19 20 N m 1 Torque to 42 45 in lbs 4 5 N m 2 Torque to 54 56 ft lbs 73 76 N m 3 Torque to 54 56 in lbs 6 0 6 5 N m 4 Torque to 40 48 ft lbs 54 65 N m 5 Torque to 28 32 ft lbs 38 43 N m 6 Assemble with lips facing up 7 Assemble with lips facing down 8 7 8 4 17 10 ti10462a 71 ...

Page 24: ...65 O RING 2 18 114231 LOCKNUT hex 1 4 28 unf 3b steel and nylon 1 19 193757 BEARING 1 20 RETAINER spring 2 21 178189 SPRING compression steel 1 22 192656 PISTON cs 1 23 178226 SEAL piston glass filled PTFE 1 24 178207 BEARING piston bronze filled PTFE 1 25 178229 CYLINDER motor cs 1 26 192654 STOP valve cs 1 27 105510 WASHER lock spring 1 28 100139 PLUG pipe 1 29 189072 SLEEVE valve steel 1 30 178...

Page 25: ...purchase separately See page 23 for other parts included in this kit Ref No Part No Description Qty 201 RECIPROCATOR page 23 1 202 192533 SEAL gasket 1 204 112154 PIN 1 205 DISPLACEMENT PUMP 1 206 183741 LABEL identification 1 207 160742 PELLET nylon 1 FIG 34 Coupling joint should have free play after pin 204 is installed 3 201 206 202 204 205 ti10461a 2 3 Apply thread lubricant Part No 070268 to ...

Page 26: ... 0 6 in3 cycle Maximum flow rate 1 1 lbs min 60 cycles min Stroke 3 in 76 2 mm Displacement pump wetted parts steel polyurethane acetal buna N polyester elastomer Hydraulic reciprocator wetted parts steel buna N rubber glass and bronze filled PTFE nylon polyure thane Weight Model 247443 43 5 lb 19 7 kg Model 247450 48 lb 21 8 kg Model 247540 41 lb 18 6 kg Sound Pressure 77 dB A Sound pressure read...

Page 27: ... 16 JIC 37 flare m 1 2 npt f fluid outlet 3 4 npt Hydraulic Outlet 14 75 in 375 mm 41 5 in 1054 mm Model 247443 48 5 in 1232 mm Model 247450 3 5 88 9 mm minimum diameter clearance hole 3 536 in 90 424 mm 3 536 in 90 424 mm clearance for or tap 5 16 18 typical 4 places 33 9 in 861 mm Model 247540 ...

Page 28: ...ted to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale GRACO MAKES NO WARRANTY AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIE...

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