Zontes ZT310M 2022, Руководство по обслуживанию

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Inspection
1. Check the pump cover O-ring and φ11.5 × φ1.8 EPDM O-ring on the pump cover. If there are bad phenomena such
as wear and tear, cutting edge, etc., replace the O-ring with a new one to prevent the occurrence of poor sealing
leading to water leakage.
2. Check the threads of the pump blades and pump shaft for wear.
3. Check whether the pump shaft and blades are cracked, damaged, worn, etc., if there is a bad need to replace the
new.
Installation
1. Take new FB12 x 22 x 5 FKM oil seals and FB12 x 24 x 5 nitrile oil seals (PTFE) and press fit them to the position
shown in the diagram below, measure the depth after fitting to determine if they are in place.
Note
：①
Apply oil to the oil seal installation hole location before installing the oil seal.
②
The height of FB12×22×5 FKM oil seal is 0.3-0.5mm shorter than the bearing limit surface, and the distance
between FB12×24×5 nitrile oil seal (PTFE) and pump cover combination surface is 17.6 (0~+0.1)mm.
2. Check that the bearings rotate smoothly, if they are sticking, replace them with new ones. After greasing the bearing
bore, press the bearing into place with a special pressure head.
Note
：①
Bearing type: GB276-6001/P5C3 deep groove ball bearing.
②
Measure whether the bearing hole diameter increases, bearing hole diameter standard:
φ
28 (-0.014, -0.027)
3. Take a new water seal, check to make sure the surface of the water seal is clean and free of debris, apply 962T bowl
plug sealant to the hole where the water seal is installed and use the special pressure head for installing the water seal
to press the water seal into place.
Apply Oil
Apply 962T Bowl Plug Sealant
6001 Bearing
FB12×24×5 Nitrile Oil Seal
（
NBR
）
FB12×22×5
Fluoroelastomer Oil Seal
Diagram of Oil Seal
and Bearing Pressed
into Place