1.
Place the container underneath screw plug 903.02.
2.
Remove screw plug 903.02 with joint ring 411.02.
3.
Carefully rotate the pump set until the opening of the leakage chamber points
downwards.
⇨
If there is no leakage or if there is only a small amount of leakage after
several years of operation (less than 0.26 gallons [1.0 liters]), the mechanical
seals are working properly. If the leakage exceeds 0.26 gallons [1.0 liters], the
mechanical seals are defective and must be replaced.
4.
Re-insert and tighten screw plug 903.02 with joint ring 411.02.
7.2.3
Lubrication and lubricant change
7.2.3.1
Lubricating the mechanical seal
7.2.3.1.1 Intervals
Replace the lubricant every 8,000 operating hours but at least every 3 years.
7.2.3.1.2 Lubricant quality
The lubricant reservoir is filled at the factory with an environmentally friendly, non-
toxic lubricant of medical quality (unless otherwise required by the customer).
The following lubricants can be used to lubricate the mechanical seals:
Table 11: Lubricant quality
Description
Properties
Paraffin oil
or
white oil,
alternative motor oils
of grade SAE 10W to
SAE 20W
Kinematic viscosity
at 104 °F [40 °C]
0.065 ft/s
2
[< 20 mm/s
2
]
Flash point (to Cleveland)
> 320 °F [> 160 °C]
Solidification point (pour point)
< -5 °F [< -15 °C]
▪
Merkur WOP 40 PB, made by SASOL
▪
Merkur white oil Pharma 40, made by DEA
▪
Thin-bodied paraffin oil No. 7174, made by Merck
▪
Equivalent brands of medical quality, non-toxic
▪
Water-glycol mixture
WARNING
Contamination of fluid handled by lubricant
Hazard to persons and the environment!
▷
Using machine oil is only permitted if the oil is disposed of properly.
7.2.3.1.3 Lubricant quantity
Table 12: Lubricant quantity
Type series
Lubricant quantity
[l]
Lubricant quantity
[gallons]
700 - 470
1.8
0.48
800 - 540
2.2
0.58
900 - 540
2.2
0.58
1000 - 700
2.5
0.66
1200 - 870
3.8
1.00
1500 - 1060
7.0
1.85
Recommended lubricants:
7 Servicing/Maintenance
Amacan P
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