Document Ref 942005-001 Rev 2.2 Page 2-9
Component Technical Manual TQP-HS for Fuel Dispensers
NOTE:- If this vent (internal thread R
3
/
8
”) is connected to an atmospheric
pressure equalising pipe, the pipe has to have a minimum internal diameter of
12mm.
2.6.7 DRAINING THE TQP-HS
The TQP-HS is provided with a double drain [5] located at the lowest point of
the housing. The pump can easily be drained without spillage by carrying out
the following actions:-
• Open the filter box
• Remove the foot valve (to allow the fuel go back to the storage tank)
• Unscrew the drain screw [5] and pull it partially down to allow the recovery
chamber [10] to empty into the filter box
If the fuel cannot go back to the storage tank (for example if there is a non-
return valve in the pipeline or if the ground tank is higher than pump), it is still
possible to drain the TQP-HS by completely removing the drain screw [5] and
catching the excess fuel in a suitable container.
2.6.8 V-BELT TRANSMISSION
The speed of the pumping unit is determined by the selection of the motor, motor
pulley and V-belt. Refer to the relevant dispenser Parts Manual or check the
number on the old V-belt before ordering replacement V-belts. There are no
options on the pumping unit itself, only one pump pulley is available.
On most Tokheim dispensers, the motor is fixed onto a support bracket which
can be adjusted to get the correct tension on the V-belt.
2.6.9 MOTORS
The power required is proportional to the flow rate and pressure:-
• For the 80 l/min version: 1 kW at 1400 rpm
• For the 130 l/min version: 1.5 kW at 2800 rpm
The motors correspond to European safety regulations: EExd. The body of the
motor must always be earthed.
Refer to the relevant dispenser Parts Manual for ordering spare parts.
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