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(6) Inspecting the spider of coupling
When broken the spider of coupling. Change the spider of coupling by「
6.4 Replacement
of Spider in Coupling
」.
(7) Inspecting the oil mist trap
When applying the oil mist trap instead of the standard vacuum tubing, pay attention for
clogging of the mesh filter of the oil mist trap. Heavy clogging may cause increasing
inside pressure or bursting out the oil level gauge. Also, it may cause oil leakage from
shaft seals or drain plug seals.
The maximum pressure inside this pump is 0.03 MPa (GAUGE).
Besides the inspecting items mentioned above, overhaul is useful when continuing the
operation for long term or observing heavy contaminated oils.
Please contact your local ULVAC KIKO,Inc. Sales and Service Center.
When requesting overhaul or repair the pump, inform the sort of evacuated gases
on the "Check sheet for repair" attached at end of this manual, and submit the
sheet by all means. When evacuating toxic gases, the pump body and the oil may
cause toxic. We cannot overhaul or repair the pump evacuated some sort of toxic
gases.
6.3 Oil change
Oil deterioration may cause the operating pressure rising. Confirm the specked ultimate
pressure by plugging the pump inlet port. If observing the high ultimate pressure, change the
pump oil. If mixing volatile contents (water, solvent) in the pump oil or precipitated sludge
on the pump bottom, several times oil changing procedures should be necessary. The oil
deterioration may be caused not only by oil contamination due to evacuated gases but also by
oil performance change depending on long operating time. We recommend periodical oil change
by the Table-2 "
Scheduled Inspection".
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