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VL-VLP IM 4-12-2013

12- 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 VL Series

Страница 1: ... 12 VL 19 VL 38 VLP 5 VLP 12 VLP 19 VLP 38 VACUUM LOADERS VL and VLP Series DOCUMENT VL VLP IM 4 12 2013 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 2013 All Rights Reserved ...

Страница 2: ...spond to any of your requests Instruction Manual VL VLP IM 4 12 2013 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 connection wi...

Страница 3: ...METERS 9 8 2 PARAMETERS EXPLANATION 9 9 INITIAL START UP 11 9 1 CONVEYING NOTES 11 10 MAINTENANCE 12 10 1 VL Series FLAT FILTER CLEANING 12 10 2 VLP Series CARTRIDGE FILTER CLEANING 13 10 3 VACUUM MOTOR BRUSH REPLACEMENT 14 10 4 VL 12 through VL 38 and VLP 12 through VLP 38 MOTOR BRUSH REPLACEMENT 15 10 5 VL 5 VLP 5 MOTOR BRUSH REPLACEMENT 15 10 6 MOTOR REPLACEMENT 16 11 TROUBLESHOOTING 17 12 WARR...

Страница 4: ...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 sensitivity ...

Страница 5: ... immediate operation and include a hardware package The hardware package includes 15 feet of flexible vacuum hose hose clamps and a material pick up lance Options Additional tubing and fittings Rigid tubing elbows bolted couplers etc Alternate sight glass sizes are available for most Machine Mount models 220 1 50 60 Volt Power Brushless Motor for VL 38 Accessories asVR MM 8 asVR MM 12 asVR MM 16 8...

Страница 6: ...id tubing elbows bolted couplers etc Alternate sight glass sizes are available for most Machine Mount models 220 1 50 60 Volt Power Brushless motor for VLP 38 Accessories asVR MM 8 asVR MM 12 asVR MM 16 8 lb Sight Glass Conversion Kit 12 lb Sight Glass Conversion Kit 16 lb Sight Glass Conversion Kit Conversion Kit to increase sight glass capacity for VL VLP 12 and 19 models Includes base borosilic...

Страница 7: ...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 accumulator tank The minimum requirement for effective filter cleaning is 80 PSI CAUTION 1 DO NOT EXC...

Страница 8: ...ger a sensor placing the system in a holding mode As material is consumed by the process and flows from the hopper below the loader the material level will fall the flapper will close or sensor will be uncovered and the loader will begin to load automatically again to keep the hopper full NOTE Once the vacuum motor starts a loading cycle will continue through the load dump and pulse cycles even if...

Страница 9: ...r will run to load material into the loader s vacuum chamber Too little time will result in insufficient loading and will shorten motor life with too many start stop cycles Too much time will pack the loader full of material prematurely blinding the filter and possibly clogging the conveying line This setting should be adjusted over the course of several normal loading cycles to just fill but not ...

Страница 10: ...ing the course of the Motor On time Time setting A counts down during loading at which time the valve switches to allow the B time setting to 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 m...

Страница 11: ... time so that it is only 1 to 2 seconds longer than the time necessary to completely empty the chamber The number of pulses needed to clean the filter depends upon the material being conveyed Clean virgin pellets require minimum filter cleaning while very dusty regrind or powder may necessitate a maximum filter cleaning sequence Adjust the pulse cycle so the filter s remain clean A mid range setti...

Страница 12: ...r is recommended to remove collected resin debris dust and fines If compressed air is used be sure to wear goggles and blow from the top coarse screen side of the filter down through the filter media Never bang the filter against a hard surface to dis lodge debris Distortion of the media or sealing ring can result Once clean thoroughly inspect the filter for severe wear holes tears and material ab...

Страница 13: ...he 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 lodge...

Страница 14: ... 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 the ...

Страница 15: ... 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 metal...

Страница 16: ...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 motor ...

Страница 17: ... 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 volta...

Страница 18: ...te the warranty A renewed warranty can be purchased directly from NOVATEC Please note that we always strive to satisfy our customers in whatever manner is deemed most expedient to overcome any issues in connection with our equipment Warranty Period Note All warranty periods commence with the shipment of the equipment to the customer VL VLP Series Loaders 2 Years Exclusions Routine maintenance repl...

Страница 21: ...ber gasket 05373 Filter Assembly 17 5 dia 400 mesh Nylon Optional Filter Assembly 17 5 dia Tight Weave 400 mesh Nylon filter with expanded metal backing clamped together with a rubber coated u channel perimeter seal 04545 Filter Assembly 17 5 dia Polyester Standard Filter Assembly 17 5 dia Polyester filter with expanded metal backing and molded rubber gasket 01695 Gasket seal 3 Standard Neoprene B...

Страница 22: ...Polyester W PTFE For 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 Standar...

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