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FläktGroup LQLR Maintenance Manual

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LQLR FAN
MAINTENANCE
STORAGE BEFORE INSTALLATION ......................................................... 2
BEFORE STARTING ......................................................................................... 2
MAINTENANCE................................................................................................. 2
CLEANING .......................................................................................................... 2
TO ADJUST THE BELT TENSION (LQLR, LQLS) ..................................... 2
TO CHANGE THE BELTS (LQLR, LQLS) .................................................... 3
INSTALLATION OF HABASIT FLAT-BELT DRIVE ................................... 3
BELT PULLEYS ...................................................................................................4
GROOVED BALL BEARINGS WITH TAPER SLEEVE .......................... 5
FLOW INDICATING INSTRUMENT ............................................................. 9
CHECKS .............................................................................................................. 9
AIR FLOW MEASUREMENT WITH Q-DYSA
FLOW INDICATING INSTRUMENT ............................................................. 9
INSTALLATION OF THE FREQUENCY CONVERTER ......................... 10
FläktGroup
DC_9202GB 20180403_R0
AND ANALOGUE
®
AND ANALOGUE
®
Specifications are subject to alteration without notice

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Summary of Contents for FläktGroup LQLR

  • Page 1: Table Of Contents

    BEFORE STARTING ..................2 MAINTENANCE....................2 CLEANING ......................2 TO ADJUST THE BELT TENSION (LQLR, LQLS) ........2 TO CHANGE THE BELTS (LQLR, LQLS) ............ 3 INSTALLATION OF HABASIT FLAT-BELT DRIVE ........3 MOVING THE MOTOR TO ADJUST THE BELT TENSION .....4 BELT PULLEYS ....................4...

  • Page 2: Storage Before Installation

    Caution! Do not use liquids, since these may seep in between the sheet-steel joints and will be absorbed by the casing insulation (does not apply to casing type LQWA). BELTDRIVE LQLR AND LQLS TO ADJUST THE BELT TENSION The belts must be correctly tensioned to ensure good contact with the Fig.

  • Page 3: To Change The Belts (Lqlr, Lqls)

    Adjust by means of the tensioning screws on the slide rails until the belt remains in the centre of the BELTDRIVE LQLR AND LQLS pulleys when the pulleys are rotating. 10. When tensioning has been completed and the belt remains...

  • Page 4: Moving The Motor To Adjust The Belt Tension

    5. Retighten the mounting bolts. one unit. EUL(B,F) 15 6. Refit the belt guard if one was fitted. 4. Tighten the screws alternately until they are all securely tightened. EUL(B,F) 12 Extractor hole LQLR-60 THROUGH -84 Adjustment Tensioning screw Screw screw Screw Fig.7 Tensioning pad Fig.

  • Page 5: Grooved Ball Bearings With Taper Sleeve

    Maintenance TO REFIT Number of tab Bearing type 1. Inspect the seals and replace them if they are defective. Fit the pitches seals, taper sleeve and bearing onto the shaft. Fit the bottom half SKF 6205–2RS1K of the bearing block in the appropriate position as marked earlier. SKF 6206–2RS1K Fit the bolts and nuts, but do not tighten them.

  • Page 6: Dismantling The Plummer Block With Ball Bearing

    Maintenance DISMANTLING THE PLUMMER BLOCK WITH BALL BEARING Steg 3 Öppna den excentriska låsringen genom att skruva den Step 4 Step 1 mot rotationsriktningen. Mät ut och markera lagrets läge Loosen the bolts of the plummer block and suspend the shaft with the Before starting support the shaft carefully by using a band or a rope.

  • Page 7: Mounting The Plummer Block With Ball Bearing

    Maintenance Steg 3 MOUNTING THE PLUMMER BLOCK WITH BALL Montera den excentriska låsringen på sin plats i BEARING innerringen och skruva den kraftigt för hand i axelns rotationsrikting så att ringen låser sig. Steg 3 Step 1 Step 4 Montera den excentriska låsringen på sin plats i Wipe the inner surface of the bearing to remove the protective film.

  • Page 8: Air Flow Measurement With Q-Dysa

    Maintenance AIR FLOW MEASUREMENT WITH Q-DYSA AND ANALOGUE FLOW INDICATING INSTRUMENT ® q-DYSA flow sensor ® Filling screw Resetting screw Level Flow indicating instrument CHECKS Another type of pressure gauge may also be connected for use as an alternative meter or for checking the performance of the flow indicating The zero setting of the manometer should be checked at regular instrument.
  • Page 9 Maintenance INSTALLATION OF THE FREQUENCY CONVERTER FREQUENCY CONVERTER Connection of the screening conductor shall be made via an EMC approved union in the frequency converter’s casing or by using a clamp intended for this purpose. The screen conductor must not be WARNING! connected to an earth bolt.

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