WPG MRPT1211LAC, Инструкция по эксплуатации

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Rev 2.0/4-16 23 MRPT1211LAC: #35063
V
ACUUM
P
UMP
M
AINTENANCE
− G
AST
N70
WARNING: Before proceeding with any maintenance, disconnect power source.
If the vacuum pump takes too long to attain full vacuum, it may require maintenance. Replace
worn parts as necessary to obtain acceptable pump performance (see REPLACEMENT PARTS
LIST).
A) Dissembling the Head Assembly
1) Note or mark the orientation of the pump heads (2) and
valve plate (3) for reassembly.
2) Remove the eight head screws (1), and then remove the two
heads (2) and valve plate (3).
3) Remove the four head O-rings (8) and the two cylinder O-
rings (9) from the valve plate (3). The O-rings will be
replaced later.
B) Replacing the Head-Side Leaf Valves
1) Note the orientation of the valve limiters (11) for reassembly.
2) Remove the two long valve screws (10) from the head side
of the valve plate (3), and then remove the two valve
limiters (11) and (exhaust) leaf valves (12).
3) Install new leaf valves (12) and reinstall the valve limiters
(11) and long valve screws (10).
C) Replacing the Cylinder-Side Leaf Valves
1) Note the orientation of the valve retainer plates (14) for
reassembly.
2) Remove the two short valve screws (13) from the cylinder
side of the valve plate (3) and then remove the two retainer
plates (14) and (intake) leaf valves (15).
3) Install new leaf valves (15) and reinstall the retainer plates
(14) and short valve screws (13).
D) Dissembling the Cylinder Assembly
1) Note the orientation of the cylinders (7) and cups (6) for reassembly.
2) Remove the four retainer screws (4) from the two retainer plates (5). Remove the cylinders
(7), leaving the retainer plates and cups (6) inside.
3) Invert the cylinders (7) and push the retainer plates (5) out through the top. The cylinders
and cups (6) will be replaced next.