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Page 20

10- TROUBLESHOOTING

Most loader problems are a result of a dirty filter, air leaks or improper adjustments. These

items should be checked before assuming equipment failure.

Problem

Investigate

Motor will not run

A, B, C, H, and L

Inadequate or no vacuum

D, E, F, G, J

Inadequate or no material flow

D, E, F, and G, I, K

Motor runs but proportioning solenoid not operating

CHECK

CONDITIONS

SOLUTION

Power Supply

No voltage or voltage incorrect Check incoming power

supply

voltage at outlet

Stop/Start Switch No voltage through switch Replace switch

Vacuum motor No voltage at motor

See A,B, & L

Filter

Filter dirty

Replace filter

(Also see G & J)

Air Ducts

Obstructed

Remove obstruction

Leaks in system

Air leaking into system Replace gaskets & repair

leaks as necessary

G.

Blowback air Increase pressure

pressure incorrect Low pressure

(not to exceed 125 psi)

Limit switch No voltage through switch Replace switch

Load Time Chamber not filling sufficiently Increase load time

Chamber over-filling Decrease load time

Pulse rate Insufficient to clean filter Increase rate

Dump time Insufficient to allow complete Increase time

emptying of chamber

Pulse solenoid Correct voltage at solenoid Replace solenoid

Содержание NOVATEC VL Series

Страница 1: ... VLP 19 VLP 38 VACUUM LOADERS VL and VLP Series DOCUMENT VL VLP IM 19 JUNE 2017 VL 12 Model Pellet and Regrind Loader VLP 38 Model Powder Loader VL 5 MM Machine Mount Pellet Loader Mini PLC Self Contained Loader Control NOVATEC Inc 2017 All Rights Reserved ...

Страница 2: ...respond to any of your requests Instruction Manual VL VLP IM 19 JUNE 2017 Model ___________________________ Serial ____________________________ DISCLAIMER NOVATEC Inc shall not be liable for errors contained in this Instruction Manual nor for misinterpretation of information contained herein NOVATEC shall not in any event be held liable for any special indirect or consequential damages in connecti...

Страница 3: ...ERS EXPLANATION 11 9 USE OF PROPORTIONING VALVES 13 10 0 INITIAL STARTUP 10 1 CONVEYING NOTES 14 11 MAINTENANCE 14 11 1 VL Series FLAT FILTER CLEANING 14 11 2 VLP Series CARTRIDGE FILTER CLEANING 16 11 3 VACUUM MOTOR BRUSH REPLACEMENT 17 11 4 VL 12 through VL 38 and VLP 12 through VLP 38 MOTOR BRUSH REPLACEMENT 18 11 5 VL 5 VLP 5 MOTOR BRUSH REPLACEMENT 18 11 6 MOTOR REPLACEMENT 19 10 TROUBLESHOOT...

Страница 4: ...or demand The sensor is attached to an adjustable bracket that slides along the length of a clear sight tube serving as a Just in Time JIT material hopper mounted between the machine throat and loader discharge The sensor height on the site tube determines the level of material that triggers a demand for more material and a new load cycle The sensor may be either a capacitance style with sensitivi...

Страница 5: ...atOD 1 5 2 in 38 50 mm 1 5 2 in 38 50 mm 2 2 in 50 50 mm 2 25 5 in 57 127 mm Recommended Throughput hr BrushType Motor 200 lb 91 Kg 400 lb 181 Kg 500 lb 227 Kg 650 lb 295 Kg Recommended Throughput hr Brushless Motor N A N A 650 lb 295 Kg 1000 lb 454 Kg 1200 lb 544 Kg Load Time seconds up to 99 up to 99 up to 99 up to 99 DumpTime seconds up to 99 up to 99 up to 99 up to 99 Amps 115V 8 13 13 13 Comp...

Страница 7: ...LP IM 19 JUNE 2017 2017 NOVATEC Inc All Rights Reserved Page 7 4 VLP SPECIFICATIONS NOVATEC VLP Series vacuum loaders operate in a similar manner to the VL s but are designed to convey free flowing powders ...

Страница 9: ...Rigid conveying tubing should be properly supported by the installer to provide a safe and secure installation Use flexible material handling hose to connect the material pick up lance or vacuum take off box to the conveying line The flexible hose should be only as long as needed since excess hose will reduce loader efficiency Connect a clean dry compressed air supply line to the filter on the acc...

Страница 10: ...through the load dump and pulse cycles even if the dump flapper is held open The loader control senses a full condition only after the completion of the dump pulse cycle 7 NO LOAD ALARM FEATURE The No Load alarm feature monitors the dump flapper on hopper mounted units to assure it opens as it should by material discharging after loading If the flapper does not open 3 seconds after the dump sequen...

Страница 11: ...w moving material discharge This setting may be increased if nuisance alarms occur from slow moving material IE fluffy regrind that is typically slow to evacuate the loader It may be decreased if the No Load alarm is too slow to respond to your material supply needs IE frequent shortages of material flow Dump Alarm Count Alm AC This number represents how many consecutive no load alarms will cause ...

Страница 12: ... take over A and B will repeat until the Motor on time expires Short A and B time settings will allow multiple layers of virgin and regrind materials to be loaded for rough mixing of the two materials during loading However short cycles require each flow of material to start then stop possibly resulting in very little material being conveyed to the loader Trial and error settings of Motor on time ...

Страница 13: ... or specifications of the process If requirements for the proportioning require more accuracy consult with your supplier regarding the use of a blender in lieu of a simple proportioning valve 10 INITIAL START UP For optimum loader operation adjust the load time so that the vacuum chamber is almost completely full at the end of the load cycle Do not allow the chamber to overfill NOTE VLP series pow...

Страница 14: ...e required in addition to cleanings during material changes to prevent cross contamination The filter media may be removed for inspection and cleaning by unclamping the ring clamp of the lid directly below the motor If necessary unplug the control cable and disconnect the air line Carefully remove the motor lid and expose the flat filter directly below the lid The filter may now be removed for ins...

Страница 15: ...sealing Replace the filter if the seal is not in perfect shape Once cleaning inspection is complete the filter may be reinstalled by placing it on the flat rim of the loader body cloth DOWN and coarse screen UP and placing the motor lid down upon it and centering the filter between the two Replace the clamp and tighten With newly installed filters the clamp may need to be adjusted to provide a vac...

Страница 16: ...onto the filter plate and cleaned in place However full removal and thorough cleaning of each cartridge is highly recommended Vacuum clean the outside of the filter s to remove collected resin debris dust and fines If compressed air is used be sure to wear goggles and blow from the inside of the filter s down through and out of the filter media Never bang the filter s against a hard surface to dis...

Страница 17: ...jet on the lid must be centered over a cartridge filter for effective blowback action Replace the clamp and tighten With newly installed filter plate seals the clamp may need to be adjusted to provide a vacuum tight and mechanically firm seal 11 3 VACUUM MOTOR BRUSH REPLACEMENT Brushes should be examined for wear and changed before the brush holder or non brush components touch the commutator of t...

Страница 18: ...ing with the retainer clip be sure the brush is properly nested in the motor frame before securing the screws 5 Repeat steps 2 thru 4 for the adjacent brush 6 Replace the metal band onto the mid section while carefully routing the wires through the grommet It is notched to fit in only one position Secure with single screw Reinstall cover over motor 11 5 VL 5 VLP 5 MOTOR BRUSH REPLACEMENT Remove me...

Страница 19: ...top of the motor and pushing down until the spring clips on each brush snap into place 8 Reinstall metal cover over motor 11 6 MOTOR REPLACEMENT Disconnect all power from the loader system Disconnect the motor wiring from the junction box located on the lid of the chamber Remove the three springs that clamp the motor to the lid The motor can now be removed Check the gasket that seals the vacuum mo...

Страница 20: ... at outlet B Stop Start Switch No voltage through switch Replace switch C Vacuum motor No voltage at motor See A B L D Filter Filter dirty Replace filter Also see G J E Air Ducts Obstructed Remove obstruction F Leaks in system Air leaking into system Replace gaskets repair leaks as necessary G Blowback air Increase pressure pressure incorrect Low pressure not to exceed 125 psi H Limit switch No vo...

Страница 21: ...note that we always strive to satisfy our customers in whatever manner is deemed most expedient to overcome anyissues in connection with our equipment Warranty Periods Note All warranty periods commence with the shipment of the equipment to the customer 5 Year Resin Drying to Include NovaWheel Dryers Dual Bed Dryers NovaDrier NDM 5 Membrane Dryer Gas Fired Process Heaters Gas Fired Regeneration He...

Страница 22: ...aVac Dryer The ability of the canisters to hold vacuum will be compromised if the vacuum seal edge is damaged from mishandling We do not warranty canisters damaged from improper handling We do however warranty the seals 3 LOAD CELLS on our WSB s are covered by Novatec standard warranty as long as they have not been damaged from improper handling 4 Desiccant Wheel Warranty will be void if the wheel...

Страница 25: ...r VLP 38 KIT S0016 Filter Kit includes three 3 of part 11644 Filter Cartridge Kit includes three 3 of part 11644 Filter Cartridge 4 OD X 2 5 ID X 10Lg Polyester W PTFE 1 Micron For VLP 12 19 01695 Gasket seal 3 Standard Neoprene Black 200 degree F Standard Neoprene 200 degree Gasket 3 Nominal Used for the Standard Discharge Gasket for the 2 dump valve 50026 Gasket seal 5 Standard Neoprene black 20...

Страница 26: ...or VLP 38 KIT S0016 Filter Kit includes three 3 of part 11644 Filter Cartridge Kit includes three 3 of part 11644 Filter Cartridge 4 OD X 2 5 ID X 10Lg Polyester W PTFE 1 Micron For VLP 12 19 01695 Gasket seal 3 Standard Neoprene Black 200 degree F Standard Neoprene 200 degree Gasket 3 Nominal Used for the Standard Discharge Gasket for the 2 dump valve 50026 Gasket seal 5 Standard Neoprene black 2...

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