Drive Chain Alignment And Tension - HYTROL RB Manual De Instalación Y Mantenimiento

ImPORTANT: When belt tracking adjustments are made, they should be
minor (1/16 in. at a time on idlers, etc., should be sufficient.).
Give the belt adequate time to react to the adjustments. It may take several
complete revolutions around the conveyor for the belt to begin tracking
properly on long, slow conveyor lines.
A) Stand at tail pulley looking toward drive and note what direction belt is
traveling.
B) Having observed belt and determined tracking problem, follow proce-
dures in "How to Steer The Belt", See figure 6A.
HOW TO STEER THE BELT
Condition 1. . .When the belt is running in the direction (fLOW) with the
arrow, but tracking (drifting) towards Side "X", move the Snub Idler near-
est the INfEEd end of Side "Y" towards the dISCHARGE end of the
conveyor.
Condition 2. . . When the belt is running in the direction (fLOW) with the
arrow, but tracking (drifting) towards Side "Y", move the Snub Idler nearest
the INfEEd end of Side "X" towards the dISCHARGE end of the con-
veyor.
If Belt direction (fLOW) is reversed, all the above conditions will remain
the same as in figure 6A, except you are now viewing the conveyor from
the opposite end.
If belt continues to track improperly, re-check all items covered in "Pre-
Tracking Inspection" and make corrections as necessary.
FIGURE 6B
RB
DRIVE PULLEY
(pOlea mOtrIz)
DRIVE PULLEY
BEARING
(rOdamIentOs de
la pOlea mOtrIz)
ADJUSTMENT BOLT
(tOrnIllO de aJUste)
SNUB IDLER
(rOdIllO de alIneaCIOn)
FIGURE 6D SQUARING PULLEY IN CENTER DRIVE OR UNDERSIDE TAKE-UP
RB/RBI
(enCUadrandO la pOlea en la UnIdad mOtrIz Central O lOs
TAKE-UP PULLEY
(pOlea tensOra)
TAKE-UP SCREW
(tOrnIllO tensOr)
SNUB IDLER
(rOdIllO de alIneaCIOn)
ADJUSTABLE
IDLER BRACKET
(sOpOrte aJUstable
del rOdIllO)

• Drive Chain Alignment and Tension

The drive chain and sprockets should be checked periodically for proper
tension and alignment. Improper adjustment will cause extensive wear to
the drive components.
TO mAKE AdJUSTmENTS
1. Remove chain guard.
2. Check sprocket alignment by placing a straightedge across the face of
SQUARING END DRIVE
(enCUadrandO el eXtremO mOtrIz)
IDLER BRACKET
(sOpOrte del rOdIllO)
"A"
ADJUSTABLE BOLTS
(tOrnIllOs aJUstables)
CHAIN GUARD
(gUarda Cadena)
tensOres InternOs)
PULLEY BEARING
(rOdamIentO de pOlea)
"A"
ADJUSTMENT BOLT
(tOrnIllO de aJUste)
"A"
ADJUSTMENT BOLTS
(tOrnIllOs de aJUste)
• Belt Tracking
DRIVE/TAIL PULLEY
FIGURE 6A
(POLEA DE MOTRIZ/RETORNO)
DRIVE/TAIL PULLEY
(POLEA DE MOTRIZ/RETORNO)
BELT
(BANDA)
NOTE: In all conditions, you are viewing the Conveyor Belt from the
INfEEd end. All corrections will be made from the INfEEd end of
FIGURE 6C
RB/RBI
(rOdIllO de alIneaCIOn)
SNUB IDLER
IDLER BRACKET
(sOpOrte del
rOdIllO)
FIGURE 6E
(rOdIllO de retOrnO)
(sOpOrte del rOdIllO)
Only trained personnel should track conveyor belt which must be done
DRIVE PULLEY
(pOlea mOtrIz)
Solo el personal entrenado deberá ajustar la banda del transportador ya
que se debe hacer cuando el transportador esté en operación.
both sprockets (figure 7A). Loosen set screws and adjust as needed.
3. Re-tighten set screws.
4. To adjust chain tension, loosen bolts that fasten motor base to mounting
angles, both sides of the conveyor. Tighten take-up bolts until desired chain
tension is reached. (figures 7B & 7C). Re-tighten mounting bolts.
5. Lubricate chain per lubrication instructions.(Page 7)
6. Replace chain guard so that it does not interfere with drive.
6
(POLEA DE RETORNO)
SIDE "X"
(LADO"X")
FLOW
(FLUJO)
SIDE "Y"
(LADO"Y")
conveyor.
SQUARING SYSTEM END TAIL PULLEY
(enCUadrandO el eXtremO del dIspOsItIVO
de aCOplamIentO para sIstema)
"A"
TAKE-UP BOLT
(tOrnIllOs tensOres)
RB/RBI
SQUARING RETURN IDLERS
(enCUadrandO lOs rOdIllOs de retOrnO)
ADJUSTMENT
RETURN IDLER
IDLER BRACKET
CAUTION!
while conveyor is in operation.
¡PRECAUCION!
TAIL PULLEY
TAIL PULLEY
(POLEA DE RETORNO)
SNUB IDLER
SNUB IDLER
(ROdILLO dE ALINEACION)
(RODILLO DE ALINEACION)
TAIL PULLEY
(pOlea de
retOrnO)
RETURN BELT
(retOrnO de banda)
ADJUSTMENT BOLTS
(tOrnIllO de aJUste)