Philips HR7758/01, Service Manual

HR7758/01

-  The blender coupling on the motor shaft has been provided 

with a customary left-handed thread.
The drive coupling (item 10) can be detached by means of 
a hammer and a screwdriver. Strike the screwdriver with a 
short sharp blow and remove the drive coupling, or block 
the acc. drive wheel (item 17) and thereby the rotor shaft, 
by sticking a pin through the hole (5 mm dia. - marked 
with an arrow) in the bottom plate.

-  The assembly of the accessories depends on the national 

version.

-  For specific versions, the component configuration may 

differ from the one shown on the exploded view. However, 
the actual components can be distinguished by their code 
numbers.

-  Make sure that all functions, including the safety devices, 

are working correctly after you have completed the repair.

- To check the processes of smart control, please look at the 

described functions on the next page.

Automatic resettable cut-out 

(part of item 11)

To prevent damage due to overheating, the appliance has been 
equipped with an automatic cut-out system. This system will 
automatically cut off the power supply when the appliance 
overheats.

If the appliance suddenly stops running:
-  Unplug the appliance
-  Switch off the appliance
-  Let the appliance cool down for 15 minutes
-  Plug the appliance in again
-  Switch the appliance on again

Safety lock 

(item 7)

Place the lid on the bowl in the right position. The appliance 
will only function if the line on the applinace is directly 
opposite the mark on the lid of the food processor bowl and 
the same holds for the other accessoires. The built-in safety 
lock will now be deblocked and you can turn the appliance on.
Note that if both the blender jar and the bowl have been 
correctly mounted, only the blender will function.

Important:

If the appliance is used without the blender jar, the appliance 
will not function, when the blender coupling (item 10) has not 
been protected by the blender cover (item 1).

Note:

The blender cover can only be removed, when no bowl 
including the bowl lid is mounted on the foodprocessor.

How to set the belt tension:

Step 1:  Give 30 N pretension force on the adjusting plate to 

minimise the distances between the belt and the belt 
wheels

Step 2:  Reduce the tension force from 30 N down to 10 N 

which is the required belt drive force for the appliance.

Step 3:  Fix the adjusting screw on the adjusting plate when the 

tension force reaches the value of 10 N (after coming 
down from 30 N!)

DISASSEMBLY- AND  RE-ASSEMBLY ADVISE

-  No specific issues

OPTIONAL (accessories)

-  No specific issues

REPAIR INSTRUCTIONS

MAINS

C1

Change-over switch

in braking position

Main PCB

brown

red

yellow

white

red

S1

S2

black

yellow

F1

F2

Rotor

R10

U

2-8