- 19 -
13. Spring Replacement
・
H i gh pressured f l ui d on h ose reel i s ver y danger ous.
S hut of f t he f l ui d suppl y, and set 0 pres sure i n t he hose.
・
If t he w i ndi ng si de hose i s di sco nnect ed f rom m at i ng equi pm ent , t he dr um m ay
suddenl y rot at e.
Al l ow t he hose t o f ul ly w i nd ont o t he dr um t o gi ve t he m i ni m um w i ndi ng
t ensi on, a nd w ork w i th m ore t han 2 pe opl e di vi ded i nt o t he pers on w ho secure
t he drum a nd t he per son w ho di sconnect t he hose.
Al l ow t he di sconnect ed hose t o w i nd aroun d t he drum , an d sl ow ly t urn t he drum
unt i l t he w i ndi ng t en si on i n t he drum i s re l eased.
・
Never di sassem bl y unt i l t he reel ' s w i ndi ng t ensi on i s rel eased .
The spri ng w i l l burst out an d cause perso n al i nj ury.
Even i f t he spri ng see m s t o be bro ken, nev er di sassem bl e bef ore ensuri ng no
w i ndi ng t ensi on rem a i ns by rot at i n g t he dr um by h and.
・
Never di sassem bl e usi ng an y ot her di sas sem bl y procedur e.
F ol l ow t he i nst ruct i ons f or handl i ng and di sposi ng of t he spri ng.
・
Al w ays put up an i nst ruct i on si gns ( "Eq ui pm ent bei ng i nspec t ed", " Do n ot
open t he val ve", et c.) bef ore carryi ng out s pri ng repl acem ent .
Before disassembly, check the winding direction (forward winding or reverse winding) and the spring
structure (A - D) of the reel.
Confirm the model name indicated on the name plate, then refer to Section 3-1. "Models and
specifications" (page 5).
Disassembly and reassembly procedures are different depending on the winding direction and spring
structure.
Figure 20
13 -1. Di sasse mbl y of br ac ket
(Common method for all spring structures)
(1) Shut off the fluid supply by setting 0 pressure hose inside.
(2) Allow the hose to fully wind around the drum to give
minimum winding tension, then dismantle the mating
equipment side hose connection.
Allow the disconnected hose to wind around the drum,
slowly turning the drum until the winding tension in the
drum is released.
This work requires more than two people.
(3) Dismantle the fixed side hose, and remove the nipple
which is attached to the spindle.
(4) Unwind the hose and remove from the drum, then remove
the hose from the installation position.
(5) Place the reel on a work table with the joint side downward.
Never directly push down the spindle onto the table.
Therefore, place materials between joint and table.
Also, for preventing the reel to fall down, prepare and use the
support material (Refer to Figure 21).
(6) Loosen the hexagon nut and remove the hexagon socket set screw
(Refer to Figure 20).
Pull out the bracket from the spindle and remove the key from the
spindle.
Ｂｒａｃｋｅｔ
Ｈｅｘａｇｏｎ ｓｏｃｋｅｔ ｓｅｔ ｓｃｒｅｗ
Ｈｅｘａｇｏｎ ｎｕｔ
Ｄｒｕｍ ｃｏｖｅｒ
Ｋｅｙ
Ｓｕｐｐｏｒｔ
Ｍａｔｅｒｉａｌｓ
Figure 21
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