68
GB 14 08 01
Maintenance
Occasional maintenance
Occasional maintenance
Occasional maintenance
Occasional maintenance
Occasional maintenance
The maintenance and renewal intervals for the following
will depend very much on the conditions under which the
sprayer will be operated and are therefore impossible to
specify.
Pump v
Pump v
Pump v
Pump v
Pump valv
alv
alv
alv
alves and dia
es and dia
es and dia
es and dia
es and diaphr
phr
phr
phr
phraaaaagms r
gms r
gms r
gms r
gms rene
ene
ene
ene
enew
w
w
w
wal
al
al
al
al
Diaphragm pump overhaul kit (valves, seals, diaphragms etc.)
Pump model
HARDI part No.
363
750342
463
750343
Valves
Remove valve cover
1
before changing the valves
2
-
note their orientation so they are replaced correctly!
NOTE:
One special valve with white flap
2A
is used. It
has to be placed in the valve opening shown.
It is recommended to use new gaskets
3
when changing
or checking the valves.
Diaphragms
Remove the diaphragm cover
4
. The diaphragm
5
may
then be changed. If fluids have reached the crankcase,
re-grease the pump thoroughly. Also check that the drain
hole at the bottom of the pump is not blocked. Reas-
semble with the following torque setting.
Pump model
Diaphragm cover Nm
Diaphragm bolt Nm
463
90
90
463
90
90
1 Nm = 0.74 lbft
IMPORTANT!
Before tightening the 4 bolts for the
diaphragm cover
B
the diaphragm must be positioned
between centre and top to ensure correct sealing be-
tween diaphragm pumphousing and diaphragm cover.
Turn crank shaft if necessary.
T261-0001
B
Cone c
Cone c
Cone c
Cone c
Cone chec
hec
hec
hec
heck/r
k/r
k/r
k/r
k/rene
ene
ene
ene
enew
w
w
w
wal EV
al EV
al EV
al EV
al EVC oper
C oper
C oper
C oper
C operaaaaating unit
ting unit
ting unit
ting unit
ting unit
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. Ref. no. 741293.
1. Remove 4 x screws
A
and remove the housing.
2. Remove 4 x screws
B
.
3. Replace cylinder
C
and O-ring
D
.
4. Loosen the nut
E
, remove and replace
the cone
F
.
5. Reassemble in reverse order.
T192-0005x
correct
wrong
A
B
C
D
E
F
T192-0037x