Maintenance Measures

Agitator Drive

Module	Instruction	Maintenance interval
by calendar (at the latest)	by operating hours (at the latest)
1 day	1 week	6 month	1 year	2 years	3 years	4000 h	8000 h	16000 h	14400 h*1) *2)
Bearings in the lantern   (the bearings are supplied with a lifetime grease filling; regreasing is not provided for)     In At ex agitators with shaft sealing "ignition puncture-proof gap”	Replace
Replace
Check bearings for strange noises	→ chapter 6
Surfaces	Remove crusts and dirt Check for wear, corrosion and damage
Threaded joints	Check tightening torques (Overview torque values → chapter 4.4)
Check the effectiveness of the bolt lockings
Product wetted parts	Clean thoroughly

Module	Instruction	Maintenance interval
by calendar (at the latest)	by operating hours (at the latest)
1 day	1 week	6 month	1 year	2 years	3 years	4000 h	8000 h	16000 h	14400 h*1) *2)
Bushing to prevent flame propagation	Check gap widths
The ventilation holes must be kept free and must not be closed
Entire agitator	Check for dust inside and out, remove dust layer if appropriate Thickness of dust layer must never exceed 5mm
Entire agitator	Overhaul

- *1) For agitators on heated vessels with temperatures >150°C, the intervals should be halved

- *2) For bearings which cannot be regreased it is ensured that the rated service life will only be reached clearly after attainment of the grease service life

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