DryAIR Hose Reel II Посібник оператора - Сторінка 20
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Друкувати сторінкуTorque Limiter Adjustment
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Although the torque limiter clutch is factory (Dryair) set, periodic adjustment may be required. It is recommended tha torque setting of
the clutch be checked twice a season. With prolonged use, the two friction disks, located on either side of the A-plate sprocket, will
eventually show wear.
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It is important that the torque limiter clutch is adjusted properly. If the clutch slips too easily, the spool will take too long to stop and
hose will pile up on the reel. If the clutch does not slip at all, the protection on the Altivar 11 drive will take over and the spool will
again take too long to stop.
Note: A visual check may be required to confirm whether it is the clutch that is slipping or whether it is the Altivar 11 drive that is auto
matically adjusting in an overload situation.
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Check that the clutch is adjusted properly with the following procedure:
Physical check
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With no power being applied to the reel, grip the edge of the spool plate and
apply full upward force, making sure that you are lifting with your legs and
not your back.
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You should be able to cause the clutch to just slip with full lifting force.
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If the clutch does not slip or slips too easily, refer to the "torque adjust
procedure", below.
Torque adjust procedure
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Insure that the adjusting nut is in a finger tight position.
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If the adjustment nut is tighter than finger tight, loosen and complete
previous step.
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Match mark the adjusting nut with the hub. Using a torque wrench tighten
the adjusting nut to 50ft*lb.
After the break-away torque is set, bend the tabs of the lock washer over the
hex flats of the adjusting nut.
Note: The torque limiter clutch nut requires
a reasonable amount of force to adjust. Use
a torque wrench that provides you with at
least 18" of leverage.
Run-in procedure
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If the torque limiter has been taken apart
and reassembled or friction disks have been
changed, it is recommended that the clutch
be "run in" by "slipping" the center
member (sprocket).
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Insure that the adjusting nut is in a finger
tight position.
•
Match mark the adjusting nut and hub.
Advance the adjusting nut ¼ turn from
finger tight.
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Slip the torque limiter sprocket for 8
minutes at full RPM.
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Refer back to the "Torque adjust proce-
dure" for final readjustment.
Maintenance
Model 350 Torque Limiter
Adjusting Nut
Lockwasher
Spring
4 - torque limiter adjustment
Center Member
Pressure Plate
Set Screw
Hub
Bushing
Friction Disc
5-3