11
iom 1900 / 2400 dual hose reel manual
P/n 962101 2008.10.24 rev. 2
2.0 Installation
2.7 spring Tension adjustment
2.7.1 spring Tension Warnings
2.7.1.1 The adjustment may require mechanical assistance in more demanding applications and installations.
2.7.1.2
WarninG:
Do not allow hose to retract without restraining the retraction speed. Walk the hose back to the reel during the spring tension
adjustment process.
2.7.2 spring Pre-Tensioning
2.7.2.1 The proper pre-tensioning required for effective operation varies by hose diameter and hose weight. Trial and error is the most effective
means of setting the proper spring pre-tension. Pre-tensioning is achieved by pre-loading the spring with setup turns (reel revolutions).
2.7.2.2 Relieve the reel of all spring tension before putting on setup turns. Grasp the end of the hose and the spool and rotate both spool and
hose together in the payout direction until you feel the spring catch engage and the spring tension starts.
2.7.2.3 Initially start with (2) set-up turns, Adjust according to section 2.7.3
2.7.2.4 Feed the end of the hose through the roller guide (if present) and test the Spring Tension. Pull the hose out the required distance and
allow it to rewind.
2.7.3 adjusting spring Tensio
n
2.7.3.1 Additional setup turns may be added. One setup turn can be removed if the torque tension is too high.
2.7.3.2 Do not add or remove setup turns on the reel after the hose has been terminated. The resulting twist may kink the hose and shorten
hose life.
2.7.3.3 Disconnect the terminated end of the hose and/or remove the ball stop if applicable.
2.7.3.4 Add one wrap of hose to the spool by pulling the end of the hose through the roller guide and winding the hose around the spool. The
hose should then be fed back through the roller guide.
2.7.3.5 Relocate the ball stop if applicable.
2.7.4 spring Cycling
2.7.4.1 The spring should be cycled after mounting but before terminating the free end. This will verify the tension adjustment and assure that
the hose will retract properly.
2.7.4.2 Spring cycling is accomplished by pulling the hose out the required distance and walking it back to the retracted position while counting
the number of complete rotations made by the reel. The number of rotations should not exceed the maximum number for the given
spring as indicated in the following table. This procedure should be performed five to ten (5-10) times.
maximum spring Turns
spring motor
number of Turns
E, EP, F, FP
15
L, LP
22
ES, ES
30
LS
44
