HARDI-EVRARD ALPHA PLUS 3500, Operating And Maintenance Manual

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ALPHA PLUS HARDI NOVA
M M A A II N N T T E E N N A A N N C C E E
CHAPTER
5 5- 18
C Co on ne e cch he ecckk// rre en ne ew waall E EV VC C o op pe erraattiin ng g u un niitt
If it becomes difficult to build up sufficient pressure or if
pressure fluctuations occur, it may be necessary to
renew cone and cylinder. A Hardi kit is available for this
purpose n°. 741293
- Remove 4 x screws ((A A)) and remove the housing
- Remove 4 x screws ((B
B))
- Replace cylinder ((C C)) and O-ring ((D D))
- Loosen the nut ((E
E)) remove and replace the cone ((FF))
- Reassemble in reverse order
A A
B B
E E
F F
C C
D D
5 5-2 2-1 12 2 O OC CC CA AS SIIO ON NA ALL M MA AIIN NT TE EN NA AN NC CE E
LLe evve ell iin nd diiccaatto orr aad djju ussttm me en ntt
The level indicator reading shoud be checked regulary
When the tank is empty, the float should lie on the stop pin, of the rod, and
the O’ring on the indicator should be positionned at the top position line
((A
A))
If any deviation is found, pull out the plug ((B B)), loosen screws ((C C)), and adjust
the length of the cord
A A
B B
C C
N No ozzzzlle e ttu ub be ess aab bd d ffiittttiin ng gss
Poor seals are usually caused by :
l
l missing O-rings or gaskets
damaged or incorrectly seated O-rings
dry or deformed O-rings or gaskets
foreign bodies
l
l
In case of leaks D
DO O N NO OT T o ovve errttiig gh htte en n.
- Disassemble, check condition and position of O-ring or
gasket
- Clean, lubricate and reassemble
The O-ring must be lubricated A
ALLLL T TH HE E W WA AY Y R RO OU UN ND D
before fitting on the nozzle tube. Use non-mineral lubri-
cant.
For R RA AD DIIA ALL connections only hand-tighten them.
For A
AX XIIA ALL connections, a liitle mechanical leverage may be used