Godwin Dri-Prime CD Series Installation, Operation And Maintenance Manual Download | Manualshive

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Installation, Operation and Maintenance Manual

CD, HL & NC Ranges of Dri-Prime

®

Pumps

95-0019-0000 Iss 11

33

8.11.3 Link belt tensioning and replacement

Figure 29 Link belt driven compressor (shown on a CD150 bearing bracket - guards and belt removed)

A) Checking

/

Tensioning

Link belt tension must be checked and, if necessary, adjusted weekly or after every 100 hrs operation.

See Section 11 for force/deflection details.

CAUTION.

Link belt tension must be maintained within the specified limits. Belts that are too slack or too tight will wear
out quickly, damage the pulleys and will result in loss of pump performance.

To check/adjust tension:-

1)

Remove at least one half of the guard.

2)

Check the belt condition. Look for signs of dust and/or pulley wear (belt over tensioned) or smearing of the belt sides
(belt under tensioned and slipping).

3)

Using a spring balance and rule (or a belt tension indicator) check the force and deflection of both belts.

4)

If adjustment is required, slacken the two clamping screws (see Figure 29) enough to allow the compressor carrying
frame to slide on the supporting angle frame.

5)

Slacken the 3 off adjusting stud nuts on top of the carrying frame (see Figure 29).

6)

Evenly adjust the nuts under the carrying frame to raise or lower the compressor.

7)

Check the tension and deflection are within the specified range and that it is the same within 2 or 3% on both belts.

8)

Correct tension: - Tighten the 3 off adjusting stud nuts (standard torque for nuts on studs – see Section 11) above the
carrying frame. Go to instruction 20).

9)

Tension not achievable because the limit of adjustment has been reached:- A link must be removed from each belt.
Lower the carrying frame to the bottom of its adjustment and remove the belts from the pulleys.

CAUTION.

The drive must be slack enough to allow the belt to be removed without forcing it over the pulley rim which
will damage the belt and lead to premature failure.

CAUTION.

Ensure the compressor drive shaft remains parallel to the pump shaft.
Check visually that the drive belts are perpendicular to the shaft axes.
Use a straight edge across the pulley faces for confirmation.
Failure to ensure that the drive is perpendicular will result in premature belt wear and early failure.

Clamping
screws
2 off

Adjusting
studs
3 off

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Summary of Contents for Dri-Prime CD Series

Page 1: ...Installation Operation and Maintenance Manual CD HL NC Ranges Dri Prime Pumps Manual No 95 0019 0000 Issue 12 Date Nov 2011 Pump Serial No ...

Page 2: ...reparation 20 8 5 2 Fitting the seal 20 8 5 3 Fitting the wear plate 23 8 5 4 Fitting the impeller 24 8 5 5 Front cover pump body fitting 25 8 5 6 Preparing for service 25 8 6 Bearing Bracket Motor Adaptor Dismantling 26 8 6 1 Preparation for dismantling 26 8 6 2 Dismantling 26 8 7 Bearing Bracket Motor Adaptor Assembly 28 8 7 1 Preparation for assembly 28 8 7 2 Assembly 28 8 8 Air Compressor 32 8...

Page 3: ...nformation for the User Operator or Maintenance Personnel Installation and maintenance is designed to be carried out using simple hand and service tools A range of special tools designed to ease dismantling and reassembly is available from Godwin Pumps Ltd When the user has insufficient tools experience or ability this work should not be attempted Under no circumstances should makeshift tools or e...

Page 4: ... connection therewith 1 For export orders within a period of twelve calendar months after the goods have been delivered or if delivery is delayed by reason of customer instructions or lack of instructions within a period of 18 months after the goods have been notified as ready for despatch whichever period expires the earlier 2 For UK orders other than personal injury caused by our negligence as d...

Page 5: ...ractices and in accordance with any local and national guidelines or statutes Figure 1 Figure 2 Figure 3 and Figure 4 show possible means of lifting They are intended for guidance only If in doubt consult Godwin Pumps Ltd or a local lifting expert Figure 1 Lifting smaller motor adaptor units Figure 2 Lifting smaller bearing bracket units Figure 3 Typical lifting methods for close coupled bare shaf...

Page 6: ...d ensure the correct bolt size and quality is utilised when connecting suction and delivery hoses Collapsible hoses must never be used on the suction side of the pump Keep the hose end suction area free from debris Although the pump can handle solids up to the size indicated in the Technical Data section of this manual larger or irregular solids may cause blockage with damage to pump components Al...

Page 7: ... Failure to provide the correct rotation will give rise to poor performance vibration and possible severe damage to the pump 6 1 Versions Larger pumps CD300 400 500 or HL130 160 225 250 260 can be supplied with or without an SAE adaptor fitted With the adaptor fitted they are suitable for direct coupling without they are suitable for open coupling The bearing bracket must be adequately supported w...

Page 8: ...pling see Figure 6 If the driver shaft is not accessible then the dial gauge can be mounted on the driver coupling Turn the driver shaft note the total indicator reading and adjust the driver position accordingly Recheck Figure 6 Initial parallel alignment check b Angular alignment Mount the dial gauge on the driver shaft or coupling as for step a and adjust the dial gauge to run on a mating face ...

Page 9: ...but it is always advisable to position the pump as close to the source as possible The Godwin Dri Prime product is designed to handle small amounts of air leakage but to ensure optimum pump performance it is advisable to ensure that the suction pipe work is airtight and the end is sufficiently submerged to prevent air being drawn into the pipe A general purpose strainer should be fitted to the end...

Page 10: ...Figure 10 Flooded suction conditions The duty of the pump should be carefully checked against the drive characteristics In some instances this arrangement can overload the driver 7 3 Compressor Vaccum pump disconnection WARNING This procedure requires access to operating and rotational parts of the pump Accidental start up could cause injury To disconnect a Ensure that the driver is isolated and t...

Page 11: ...er on the bottom or side of the volute see Figure 12 or on the underside of the discharge flange see Figure 13 CAUTION Failure to drain the pump and non return valve in these conditions could result in the pumped product residue freezing and cracking the volute or non return valve Figure 12 Side bottom drain plug position Figure 13 Discharge flange drain plug position Side bottom drain if volute i...

Page 12: ...per grease nipple are sufficient Overfilling the bearings with grease can be as harmful as under lubrication Compaction of grease results in it being churned by the rolling action of the bearings which leads to overheating breakdown of the lubricant and ultimately bearing failure CAUTION Failure to re grease the bearings correctly with the correct type of grease at suitable intervals could result ...

Page 13: ...caused by failure to initially fill subsequently maintain the correct coolant level or use the wrong coolant in the seal housing will result in seal failure Seals that have failed due to lack of operator provision of the correct and sufficient coolant are not covered by the warranty The various configurations for filling and draining are shown in Figure 15 Figure 16 or Figure 17 The seal coolant l...

Page 14: ...rain water from the pump see Section 7 4 4 Drain the coolant oil from the mechanical seal cavity see Section 8 2 5 For units fitted with a compressor disconnect the air supply hose to the ejector head For units fitted with a vacuum pump disconnect the suction hose from the priming tower WARNING Dismantling requires adequate support of both the parts being removed and the remaining parts of the pum...

Page 15: ... to the pump body see Figure 20 These are on the periphery of the front cover At this stage do not disturb any other fasteners as these hold the front wearplate to the front cover Remove the front cover and wearplate complete Larger pumps are provided with pre tapped holes around the periphery to enable the use of jacking screws to help in removal NOTE The CD400M and CD500M have an adaptor plate f...

Page 16: ... clockwise direction If the impeller is reluctant to rotate place a block of wood against one of the vanes and tap lightly with a hammer to overcome the initial resistance Shims will have been fitted on the shaft behind the impeller Remove these carefully and retain for reuse unless damaged Pump types NC80 NC100 NC150 These sizes of N pump all utilize a tapered locking sleeve incorporating a left ...

Page 17: ...mpeller and expose the impeller locking bolt Knock down the tabs on the tab washer Unscrew the bolt Remove the bolt tab washer and clamping washer The impeller is splined on to the shaft and can now be pulled off Shims will have been fitted on the shaft behind the impeller Remove these carefully and retain for reuse unless damaged Some units will have a shaped impeller spacer fitted behind the shi...

Page 18: ...eat directly on its inner face Take care in removing the wear plate to avoid damaging the seat on the shaft The seal seat is retained on the back of the wear plate a clamping ring held in place by screws Remove the screws from the clamping ring Remove the clamping ring and press out the outer seal seat Later models incorporate a roll pin which protrudes from the back of the wearplate into a groove...

Page 19: ...ng 2 from the shaft Unscrew the grub screws 5 holding the stationary seat 3 to the shaft Remove the stationary seat Unscrew the grub screws 6 holding the second stationary seat 8 to the shaft Remove the stationary seat Figure 26 Type 3 double mechanical seal Remove the second rotating seal face 10 and O ring 9 from the shaft The seal seat 11 is held in a carrier retained by 4 off cap head socket s...

Page 20: ...2 Fitting the seal Pump types CD75 CD80D CD80M CD100M CD103M CD140M CD150M CD200M CD225 CD250M Figure 24 HL80 HL100M HL125MS HL150M HL150MHD NC80 NC100 NC150 CD140M CD200M CD225M CD250M HL100M HL125MS HL150M HL150MHD only Fit the seal spacer onto the shaft ensuring it seats against the shaft shoulder Carefully remove the rotary head 1 and O ring 2 from the assembly Do not place the rotary head 1 f...

Page 21: ...aptor Secure with cap head screws and washers Carefully clean the lapped seal face with a suitable degreasing agent and soft tissue Carefully remove the rotary head 10 and O ring 9 from the assembly Do not place the rotary head face down as this may cause damage to the lapped seal face Take the sleeve assembly 8 and ensure that the drive screws 6 are fully retracted to prevent scratching of the sh...

Page 22: ...ll pin fits into the groove in the back of the seal seat Fit a new O ring to the carrier and slide the assembly along the shaft to seat in the adaptor Secure with cap head screws and washers CAUTION Failure to ensure the pin locates in the groove of the seal for CD500M HL260M units will result in seal seat breakage Carefully clean the lapped seal face with a suitable degreasing agent and soft tiss...

Page 23: ... CD180M CD200M CD225 CD250M CD300M CD400M HL100 HL110M HL125MS HL150M HL150MHD HL200M HL130M HL160M HL225M HL250M Slide the carrier over the shaft and attach with four off cap head socket screws Position the rear wear plate and attach with fasteners from the motor adaptor bearing bracket seal housing adaptor side Pump types CD500M HL260M Carefully place the rear wear plate over the shaft It is rec...

Page 24: ...eck the rear impeller clearance If within the permitted tolerance secure the impeller with the self locking retaining screw Pump types CD300M CD400M CD500M HL130M HL160M HL225M HL250M HL260M Refit the shims or new equivalents removed during strip down If a 4mm thick impeller spacer was fitted ensure it is refitted first with its internal radiused edge towards the shaft shoulder The impeller is spl...

Page 25: ... if the larger pump body has been removed fit the body guiding the body studs into the adaptor holes Secure the peripheral fasteners Attach the front cover and wearplate assembly to the pump body see Figure 20 using the peripheral fasteners NOTE The CD400M and CD500M have an adaptor plate fitted between the front cover and pump body It carries the front wearplate and is located by a spigot on the ...

Page 26: ...required for cleaning purposes or because of damage 6 If necessary remove the bearing inner races from the shaft 7 Inspect all parts for damage or wear and replace as necessary All lip seals and O rings must be replaced Pump types HL80 HL100M HL110M HL125M HL150M HL200M 1 HL80 Undo and remove the nuts and spring washers from the studs holding the pump body to the bearing bracket or motor adaptor U...

Page 27: ...rease nipple and extension pipe where they protrude through the mechanical seal adaptor 2 Release the nuts on the bolts holding the adaptor to the bearing bracket and remove the fasteners Remove the adaptor 3 If a close coupling adaptor is fitted then remove the grease nipple and extension pipe where they protrude through the adaptor Remove the adaptor 4 Unscrew the drive end bearing cover fastene...

Page 28: ...perature slide it hard against the shaft shoulder holding it there for a minimum of 30 seconds This allows the race to grip the shaft and prevent it from creeping away from the shoulder during cooling Let the assembly cool completely 2 Fit the inner and outer bearing spacers 3 Heat the ball bearing Once up to temperature slide it hard against the inner spacer holding it there for a minimum of 30 s...

Page 29: ... meets the inner race 7 Fit the drive end bearing cap without lip seal and hand tighten the retaining screws Rotate the shaft assembly by hand about a dozen times to ensure free movement 8 Using a dial indicator located against the end face of the drive end of the shaft measure the end float of the shaft Add shims under the drive end bearing cover to achieve the end float given in the Technical Da...

Page 30: ...p the shaft and prevent it creeping away from the shoulder during cooling Let the assembly cool completely 6 Take the single roller bearing outer race and press it into the bearing bracket motor adaptor at the pump end Use the pump end bearing cover without the lip seal fitted to press it into its final position 7 Pre pack the spherical roller bearing or the two angular contact bearings with greas...

Page 31: ...cket at the pump end Use the pump end bearing cover without the lip seal fitted to press it into its final position Remove the cover 7 Secure the shaft aligning jig to the pump end of the bearing bracket Place the two bearing inner covers in the bracket Lift the shaft horizontally using suitable over head lifting equipment and slide the shaft assembly in to the bracket 8 Fit the lip seal to the dr...

Page 32: ... passed over the shaft end 4 Release the fasteners to allow the air compressor to be tipped forward Remove the belt 5 Fit a new belt and tighten air compressor fasteners 6 Check the belt tension to ensure that it complies with the belt manufacturer recommendations see Technical Data section Add or remove shims to achieve this 7 Reassemble the coupling 8 Refit the pulley guard 9 Replace the compres...

Page 33: ...pressor carrying frame to slide on the supporting angle frame 5 Slacken the 3 off adjusting stud nuts on top of the carrying frame see Figure 29 6 Evenly adjust the nuts under the carrying frame to raise or lower the compressor 7 Check the tension and deflection are within the specified range and that it is the same within 2 or 3 on both belts 8 Correct tension Tighten the 3 off adjusting stud nut...

Page 34: ...ure 29 4 If the belts are still intact lower the carrying frame by evenly adjusting the nuts underneath until the belts can be removed 5 Dismantle the belts as described in instructions 11 to 13 of the Tensioning section above 6 Thoroughly clean the area removing all traces of debris and foreign objects 7 Adjust the carrying frame so that the clamping screws are approximately 10mm above the bottom...

Page 35: ...50MHD ACC PT 19 ACC PT 21 HL110M ACC PT 35 HL130M HL160M HL225M HL250M ACC PT 37 HL200M ACC PT 34 HL260M ACC PT 41 Pump MA version BB version NC80 ACC PT 42 ACC PT 43 NC100 ACC PT 44 ACC PT 45 NC150 ACC PT 46 ACC PT 47 The kits generally comprise of a special spanner and locating tool to aid in impeller removal fitting These tool sets have an impeller spanner designed for use with a 1 square drive...

Page 36: ...d Liquid flow ceases Excessive power consumption Vibration or overheating Seal housing oil emulsified POSSIBLE CAUSE Suction lift too great Insufficient water at suction inlet Suction inlet or strainer blocked Separation tank filter blocked Suction line not air tight Suction hose collapsed Non return valve not seating Mechanical seal drawing air into pump Compressor units only Ejector jet or nozzl...

Page 37: ...80M 3 3 83 21 40 80 2 8 186 146 1200 1800 2200 CD100M 4 4 160 35 45 100 3 5 202 169 1200 1700 2200 CD103M 4 4 200 44 75 80 4 4 220 200 1200 1800 2200 CD140M 4 4 250 85 75 80 9 510 1200 1800 2000 CD150M 6 6 450 49 65 80 4 285 254 1200 1500 2200 CD160M 6 6 460 80 75 80 9 610 580 1200 1800 2000 CD180M 8 6 75 80 9 600 570 1200 1800 2000 CD200M 8 8 790 50 75 80 5 310 1400 2000 2200 CD225M 8 8 790 55 80...

Page 38: ...000 HL200M 6 8 or 6 6 540 97 38 80 11 4 689 1200 1600 2200 HL225M 10 8 830 110 65 90 11 905 6 1200 1800 2000 HL250M 12 10 1080 116 65 80 13 986 1200 1800 2000 HL260M 10 8 1081 150 50 80 16 1440 1200 1800 1800 NOTES 1 Weights are based on cast iron bareshaft pumps fitted with compressors Different materials or additional equipment can significantly affect the weight 2 Bareshaft open coupled unit wi...

Page 39: ...D400M N A 90 50 0 0 5 Oil Any SAE 20 20 or BIOPUS 46 Biodegradable 6 8 0 6 CD300M 1 2 75 Inboard 37 0 0 3 Outboard 45 5 0 5 N A 1 6 0 6 CD250M 3 0 127 to 0 33mm 0 005 to 0 013 320 0 434 0 100 135 6 50 34 0 0 3 CD225 1 N A CD200M 4 Nominal bearing clearance only 0 05mm 0 002 max 40 32 0 0 3 CD160M Mk 2 CD180M 2 or 3 563 0 763 0 75 Inboard 37 0 0 3 Outboard 45 5 0 5 3 8 0 5 CD160M Mk1 60 39 0 0 3 CD...

Page 40: ...tarplex EP2 Shell Nertia HV Mobil SHV 46 Total Multis Complex EP2 Belesta XPG Oil Any SAE 20 20 or BIOPUS 46 Biodegradable 5 5 litres initial fill Top up to full mark on dipstick after 1 hr running 0 6 HL225M N A 1 HL160M HL130M N A 1 HL200M 2 563 0 763 0 100 0 135 6 60 39 0 0 3 5 25 N A HL150MHD 517 0 701 0 50 34 0 0 3 HL150M 3 378 0 513 0 Hl125MS 0 127 to 0 33mm 0 005 to 0 013 HL110M 2 or 3 Nomi...

Page 41: ...Shell Nertia HV Mobil SHV 46 Total Multis Complex EP2 Belesta XPG Oil Any SAE 20 20 or BIOPUS 46 Biodegradable 0 5 N A Total Cortusa 100 NC100 NC80 Pump Type Detail MA Flange SAE Shaft end float mm ins Impeller clearance front Impeller bolt torque lbs ft N m Shaft diameter at seal position mm Seal working length mm Grease Type Capacity litres Vol Max to Min litres Compressor oil if not fed from en...

Page 42: ...13 5 5 4 10 5 5 16 18 27 1 10 5 21 0 3 8 16 48 8 20 37 8 7 16 14 74 6 30 57 8 13 122 48 94 6 5 8 11 237 3 95 183 9 10 420 4 167 325 8 7 8 9 664 4 266 514 9 1 8 1003 401 777 3 Table 1 figures are for Metric fasteners to BS3692 Steel fasteners Grade 8 8 for bolts Grade 4 6 for studs Grade 10 for nuts Stainless Steel fasteners Grade A2 Table 2 figures are for UNC fasteners to BS1768 Steel fasteners G...

Page 43: ...e run in column values The figures are based on an ambient temperature of 20 C 11 7 3 Belt tension figures HTD Timing belts Pump type Speed Ratio Pulley Centres Belt type Force Deflection Frequency Hz A mm type F kg d mm As Built Run in CD75 1 4 199 6 Timing 1 6 4 CD80M 2 1 303 9 Timing 2 5 6 CD75M CD80D 1 2 200 0 HTD 2 5 4 85 70 80 CD100M HL80M 1 6 287 4 Timing 2 5 6 75 60 70 CD103M CD150M CD200M...

Page 44: ...ington Cirencester Gloucestershire GL7 5BX England Tel 44 0 1285 750271 Fax 44 0 1285 750352 E mail sales godwinpumps co uk Website www godwinpumps co uk Godwin Pumps of America Inc 84 Floodgate Road Bridgeport New Jersey 08014 U S A Tel 001 856 467 3636 Fax 001 856 467 4841 E mail sales godwinpumps com Website www godwinpumps com ...

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