Installation and operating instructions WILO Mather and Platt – VT pumps 40
• Care to be taken to insert water thrower on the head shaft
while lowering the motor stool.
• Now assemble the oil retainer bush, bearing housing and
then fix the upper race of bearing followed by thrust block,
ratchet plate/housing cover, ratchet bush and pins, lock nut
and locking screw. Then adjust the float of the pump as per
the GA drawings.
• Rest the pump half of flexible coupling on the top shaft
with adjusting ring below. Thickness of the adjusting ring to
be maintained based on the gap between the coupling half
mentioned in GA drawings. Machine the adjusting ring if the
gap is less than the required. Refer the below procedure -
• Fix the coupling halves of the pump and motor.
• Assemble the motor on the motor stool.
• Check the gap between the coupling halves with the feeler
gauges.
• If the gap is less dis-assemble the motor and then machine
the adjusting ring.
• Care to be taken to maintain recommended gap between
both coupling faces.
• Thickness of the adjusting ring can be varied as per
assembly requirement.
• Then fix the gland and other accessories such as pressure
gauge, air release valve, vibration sensor etc. on the motor
stool.
• Ensure the cooling pipeline is completed/connected for
cooling coil.
• Ensure the stuffing box leak-off connection are done if
gland leakage is heavy.
11.6 Recommended spare parts
In case of standard operation, we recommend the following
list of spare part regarding the period of functioning.
The maintenance of the Vertical pumps is easier than other
pump types. Then in order to facilitate this operation we
strongly recommended purchasing a batch of part with the
pump in order to reduce the shutdown timing.
• It is strongly recommended to purchase the original spares parts
from WILO Mather and Platt. In order to avoid any mistake, we
invite you to supply with any spare parts demand, the information
mentioned on the data plate of the pump and / or motor.