page 52 of 96
+
Allow sufficient cooling of the pump before
starting maintenance.
+
Vent the pump and isolate it from the
vacuum system before you start mainte-
nance. Drain condensate, if applicable.
Ensure that maintenance is done only by suitably
trained and supervised technicians.
The valves and diaphragms are wear parts. If the rated
ultimate vacuum is no longer achieved or in case of in-
creased noise level, the pump interior, the diaphragms
and the valves must be cleaned and the diaphragms and
valves must be checked for cracks or other damage.
All bearings are encapsulated and are filled with long-life
lubricant. Under normal operating conditions, the drive
system is maintenance free.
In demanding circumstances, it may be efficient to
check and clean the pump heads on a regular basis. In
normal use, the lifetime of the diaphragms and valves
is more than 10,000 operating hours.
- Prevent internal condensation, transfer of liquids or
dust. The diaphragms and valves will be damaged if
liquid is pumped in significant amount.
- Carry out maintenance frequently if the pump is ex-
posed to corrosive media or in case of deposits.
- Regular maintenance will improve the lifetime of the
pump and also protect both users and the environment.
NOTICE
atm
°C / °F
Set of seals (diaphragms, valves and O-rings).........................................2x
20696867
for ME 16C NT VARIO / PC 3016 NT VARIO
Set of seals (diaphragms, valves and O-rings)..........................................
20696839
for MD 12C NT VARIO, MV 10C NT VARIO / PC 3012 NT VARIO / PC 3010 NT VARIO
Diaphragm key (w/f 66) ............................................................................
20636554
+
Service only one side of the pump at a time to avoid the mixing of
parts.
+
In case, support the pump appropriately.
Summary of Contents for ME 16C NT VARIO o.C.
Page 54: ...page 54 of 96 3 2 4 4 4x...
Page 56: ...page 56 of 96 2 5 mm Emission condenser Peltronic 8 6A Emission condenser Peltronic 4 2x 7A...
Page 57: ...page 57 of 96 Emission condenser Peltronic 4 4x 9 8A 10 4 2x...
Page 58: ...page 58 of 96 12 11 4 4x Don t loosen this screw 12A 13...
Page 59: ...page 59 of 96 5 2x 12A 1 2 3 1 4 1 4 3 2x 5 13 14...
Page 60: ...page 60 of 96 17 5 2x 16 15...
Page 62: ...page 62 of 96 18 2 5 mm Replacing the diaphragms 19 20 Clean 5 8x 20696867 20696839...
Page 63: ...page 63 of 96 21 22 23 1 2...
Page 64: ...page 64 of 96 24 3 25 Pay attention to number of washers 26...
Page 67: ...page 67 of 96 33 34 35 Clean...
Page 68: ...page 68 of 96 36 37 38 IN IN EX EX 4x 20696867 20696839...
Page 69: ...page 69 of 96 39 40 41 IN EX T20 4x 2 2 ft lbf 3 Nm...
Page 70: ...page 70 of 96 42 43 44 Maintain all pump heads in the same way...
Page 74: ...page 74 of 96 2 size 2 2x 3 4A Version A valve 24 4 mm...
Page 75: ...page 75 of 96 5A 20696839 24 4 mm 26 mm 4B 5B 20696839 37 mm 40 mm Version B valve 37 mm...
Page 78: ...page 78 of 96 Assembling the pump housing 46 5 2x 8 9 ft lbf 12 Nm 47 48...
Page 79: ...page 79 of 96 49 5 2x 8 9 ft lbf 12 Nm 50 51...
Page 80: ...page 80 of 96 52 52A 53 52A 1 2 3 3 2x...
Page 81: ...page 81 of 96 53 4 4x 3 7 ft lbf 5 Nm 54 4 2x 3 7 ft lbf 5 Nm 55 4 4x 3 7 ft lbf 5 Nm...
Page 82: ...page 82 of 96 56 57 58...
Page 84: ...page 84 of 96 59 60 4 4x 3 7 ft lbf 5 Nm 61...
Page 87: ...page 87 of 96 3 4 20638821 20638821 5...