Wood’s Powr-Grip MRPT1211LAC - Manual (Page 21)

Rev 0.0/9-12 19 MRPT1211LAC: #35063
V
ACUUM
P
UMP
M
AINTENANCE
(for 4-SCFM rotary vane pumps 12 )
WARNING: Before proceeding with any maintenance, disconnect power source.
Disassembly/Reassembly Procedure
(including directions for replacing the vanes and gasket)
1) Remove the intake and exhaust filters (1) from the sound chamber (6) of the vacuum pump.
2) Remove the five socket-head screws (2) from the sound chamber and remove the sound
chamber.
Note: If any liquid is discovered in the sound chamber, thoroughly dry all interior surfaces of
the pump prior to reassembly.
3) Remove the six socket-head screws (8) from the endplate (3), and separate the endplate
from the rotor housing (9). The shroud (4) surrounding the rotor housing will loosen as well.
4) Note the orientation of the bevel on the vanes (10) for step 5. Then remove the vanes by
sliding them out the end of the rotor (5). If needed, rotate the rotor by hand to position the
vanes for easier access.
5) Make sure that the rotor and housing are clean and free of debris. Orient the new vanes like
the old ones by matching the bevel. Then insert the new vanes by sliding them into the
empty slots in the rotor.
6) Reinstall the endplate and secure it
with the six socket-head screws.
7) Remove the gasket (7), and make
sure that the contact surfaces
between the endplate and sound
chamber are clean. Install a new
gasket and reinstall the sound
chamber. Then secure the sound
chamber with the five socket-head
screws.
8) If the intake and exhaust filters
appear dirty, use a compressed air
nozzle to clean them. Then reinstall
the filters.
1 INTAKE/EXHAUST FILTERS 6 SOUND CHAMBER
2 SOCKET-HEAD SCREWS (FOR SOUND CHAMBER) 7 GASKET
3 ENDPLATE 8 SOCKET-HEAD SCREWS (FOR ENDPLATE)
4 SHROUD 9 ROTOR HOUSING
5 ROTOR 10 VANES
12
Depending on the brand of pump supplied, some details may not be applicable.