Alemite 7334-B Manuale di servizio - Pagina 11
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Loosely attach the delivery hose to the
sheave assembly with u-bolt (),
washers () and wing nuts ().
Rotate the sheave assembly to wrap the
hose onto the reel.
. The clicking sound is the power
spring bypassing the cam on the
spring arbor.
Screw the connecting hose (with thread
sealant) into the outlet of the reel.
NOTE
It is mandatory that these reels be
installed at a height no greater than
ft (6.1 m) from the floor. Should the
existing ceiling height be greater, mount
the reel to a suspension bracket
(→ fig. , page )
Mount the reel assembly with the
appropriate hardware.
Attach the connecting hose to the
distribution system.
Install the control valve.
CAUTION
The hose must be extended when the
system is pressurized. Damage to the
sheave assembly can occur.
Pull the hose fully from the reel and
pressurize the system.
Tighten the wing nuts onto the u-bolt.
Retract the hose onto the reel.
Install and secure the hose stop to the
desired position.
Setting spring tension
CAUTION
Do not overwind the power spring.
Too much tension reduces the life of the
spring.
To adjust tension on the power spring:
Add / remove one coil of hose to / from
the sheave assembly.
NOTE
Add or remove hose coils to provide the
amount of spring tension that gently
holds the hose stop against the hose
guide. When the hose is fully extended
from the reel, the power spring should
be a minimum of
/
turn from a fully
1
2
wound condition.
Repeat step until the proper tension is
achieved.
Reel operation
WARNING
Do not exceed the lowest pressure
rating of any component in the system.
Never point a control valve at any
portion of your body or another person.
Lubricant discharged at high velocity
can penetrate the skin and cause severe
injury. Should any fluid appear to
puncture the skin, get medical care
immediately.
Ensure all components are in
operable condition. Replace any suspect
parts prior to operation. Personal injury
can occur.
Hold the delivery hose securely until
the reel is securely latched or fully
retracted. Uncontrolled retraction can
result in personal injury.
Latch lockout
Do not extend the hose from the reel too
rapidly. Too much velocity can cause the reel
to over-run and latch. If this occurs, pulling
on the hose will not release the latch
mechanism.
Should the reel latch in this condition, it
will be necessary to have an assistant
maintain tension on the hose while the
latching mechanism is manually released.
WARNING
The reel is under maximum spring ten-
sion. Personal injury can occur.
Instruct the assistant to grip the hose
securely with both hands to prevent
uncontrolled retraction.
Grip the sheave assembly securely with
gloved hands.
Turn the sheave assembly in the
direction just enough that allows pawl ()
to be free of tension from the ratchet on
power spring assembly ().
. This direction further increases
tension on the power spring.
While maintaining the position of the
sheave assembly with one hand, move
the pawl away from the ratchet.
. Use a screwdriver or other suitable
tool.
Instruct the assistant to allow the hose to
retract slowly onto the sheave assembly.