Maintenance - Grohe Grohsafe 35 237 Manual

Pressure Balancing Cartridge
1.Shut off hot and cold water supply!
2.Remove the connection nipple (K), see
Fig. [18].
18
K1
K2
K
3.Pull off cap (P), loosen centre screw (O1)
and pull off handle (O).
4.Detach hot water limit stop (N) and note
position.
5.Remove screws (M1), washers (M) and
scale ring (L).
6.Remove screws (G1) and chassis (G),
see Fig. [19].
19
T1
S
T
Z
S1
R
J
J1

Maintenance

L
M
M1 N
O
O1
P
G
G1
12
7.Loosen screw (J1) and pull off driver (J).
8.Detach stop ring (R) and note position.
9.Remove the four corner screws (S1) and
valve cover (S).
10. Pull the existing pressure balancing
cartridge (T) out of the valve body noting
the location of "H" and "C" marking
near the cartridge inlets.
The pressure balancing cartridge (T) must
be replaced as a complete unit.
Reassemble in reverse order.
Ensure the two alignment pins (T1) on the
rear of the pressure balancing cartridge are
properly seated in the holes (Z) of the valve
body and that the hot "H" and cold "C"
markings are on the correct side.
Be sure that the stop ring (R) and the hot
water limit stop (N) are in the previously
noted position.
Non-return valve
1.Remove the connection nipple (K), see
Fig. [18].
2.Detach retaining ring (K1).
3.Pull out non-return valves.
Check, clean and if necessary replace parts.
Only genuine GROHE replacement parts
must be used.