Ratchet Mechanism; Hose Fitting; Adjustment Of Spring Tension - Nederman 870 Manual De Instrucciones

4.2 Hose oulet
See Figure 3. The hose outlet can be turned and locked in different positions. Choose the position
where the hose is bent as little as possible.
4.3 Connection to the pipework system
See Figure 3. The reel must be connected to the pipework system with hose only, minimum 0.5 m.
Check that the hose is not twisted or strained after connection. Fix the inlet hose (see item *) so
that it does not rotate when pulling out the distribution hose. A stop valve should be fitted on the
pipe system before the hose connection.
4.4

Ratchet mechanism

See Figure 4. The hose reel is delivered with a ratchet mechanism which retains the hose in the
required outdrawn position. The ratchet will disengage if the hose is drawn out a little further
and the hose then recoils to the drum. It should be noted that the hose should be held by the hand
as long as possible during the recoiling. The ratchet function can be disengaged by removing the
ratchet. In that case the hose must first be completely recoiled.
4.5

Hose fitting

See Figure 5. When selecting hose, note bore size and working pressure on the reels identification
label.
1.
Place the reel on a suitable working bench.
NOTE!
Ensure that there is no tension in the spring.
2.
Fit the hose to the nipple on the drum shaft, see also item A.
3.
Loosen the spring hub fixing screws, see item *.
4.
Wind all the hose on, by turning the drum in the direction of the blue arrow.
5.
Fasten the spring hub with 3 fixing screws.
6.
Tension the spring by turning the drum, with all hose in place, 1–3 revolutions in the other
direction.
7.
Push the hose through the reels outlet and fit the hose-stop.
8.
Fit the inlet hose, min. length 0.5 m.
9.
Fit the reel, see Chapter '4.1 Mounting instruction'.
10.
Check that the required length of hose can be unreeled without stretching the spring to its
limit.
11.
Turn on the supply and check that the hoseconnections don't leak.
4.6

Adjustment of spring tension

See Figure 6.
•
Recoil the hose until the hose stop stops against the outlet. Pull the hose out, to a position where
the ratchet is engaged. Unscrew hose stop and tool connected to the hose.
•
Turn the drum, with all hose wound on: one revolution in the direction of the black arrow
when increasing the spring tension, one revolution in the direction of the blue arrow when
decreasing the spring tension.
•
Beat hose stop and tool.
•
Check that the required length of hose can be pulled out without stretching the spring to its
limit.
Hose Reel 876 EN
11