Unibloc-Pump 54001010P20H6010T12E, Руководство по эксплуатации и обслуживанию

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16 UNIBLOC-PD Operation & Service Manual: PD200-576
4.3 Maintenance Schedule and Recommended Spare Parts
It is recommended to install pressure gauges on both sides of the pump so that any problems with the pump or pipelines can be
monitored. It is also recommended to have shut-off valves on both sides for easy isolation of pump if manual service is required.
The UNIBLOC bearing housing is supplied permanently lubricated with nitrile seals. However, for certain applications and at the
user’s request, drain plugs and a vent will be supplied. When applications exceed constant service temperatures of 180º C (356º F)
a vent and high temperature lubricant must be used. For such cases, contact UNIBLOC-PUMP or your supplier for an adequate
service schedule.
Recommended weekly maintenance control to include:
• Control of oil levels in pump bearing housing and gear reducer. (Change once per year or after 2000 hours of operation,
whichever comes first.)
• Control of oil seal leakage.
• Control of shaft seal leakage.
• Control of pump medium leakage.
Allow the pump to cool down after shut down prior to inspection.
Recommended spare parts
• 1 set of shaft seals Qty 2
• 1 set of front oil seals Qty 2
• 1 set of rear oil seals Qty 1
• 1 wet-end o-ring kit Qty 1 (5 o-rings)
• 1 wet-end o-ring kit (for Metal Rotors) Qty 1 (5 o-rings)
4.4 Shaft Seal Service
DISENGAGE POWER TO THE MOTOR before proceeding with the following steps. If the pump is connected to
piping, depressurize the system and close valves on both the suction and discharge sides to isolate the pump from the
rest of the system. Disconnect the piping from the pump. If service is to be performed while the pump is still mounted
to the system, disconnect the motor drive coupling or the electrical connection to the motor.
To aid in the removal and installation of the shaft seals, use plastic mounting sleeves with the same diameter as
the shafts seal area. The sleeves also protect the seals from the shaft splines. They can be obtained from UNI-
BLOC-PUMP. Contact your supplier for details.
Remove the front cover nuts (16) and the front cover (2). If the pump has polymer rotors (3b) they can be removed by sliding
them off the shafts. If the rotors are stainless steel (3a), place a nonmetal object between
the rotors to keep them from turning. Unscrew the rotor bolts (14a) and then slide the rotors
off the shafts. If the rotors will not slide off they can be removed simultaneously with the
rotor housing (1). Unless they are being replaced, DO NOT USE PLIERS OR CHANNEL
LOCKS TO REMOVE THE ROTORS. They will be damaged. See the following sections
for further instructions to remove the rotor housing.
Figure 4.4.1
ATTENTION
ATTENTION