MAF Assembly
Replace all seals and seal rings with new ones each time you
reassemble the MAF unit. Lubricate all seals and seal rings with
SAE 10W40 oil or clean grease before assembly.
NOTE: Individual seals and seal rings as well as a complete seal kit
are available. SEE FIGURE 29. The parts should be available
through most OEM parts distributors or Ross approved MAF
distributors. (Contact your local dealer for availability).
NOTE: Unless otherwise indicated, do not oil or grease parts before
assembly.
Wash all parts in clean petroleum-based solvents before assembly.
Blow them dry with compressed air. Remove any paint chips from
mating surfaces of the end cover, stator, wearplate and housing and
from port and sealing areas.
WARNING
WARNING: SINCE THEY ARE
FLAMMABLE BE EXTREMELY
CAREFUL WHEN USING ANY
SOLVENT. EVEN A SMALL EX-
PLOSION OR FIRE COULD CAUSE
INJURY OR DEATH.
WARNING
WARNING: WEAR EYE PROTEC-
TION AND BE SURE TO COMPLY
WITH OSHA OR OTHER
MAXIMUM AIR PRESSURE
REQUIREMENTS.
service housing
1.
If a service housing and
and commutator
commutator assembly set has
replacement
been procured for the MAF unit
being serviced, the housing com-
ponents are already installed. Start
the assembly procedure with Step
9.
housing seal
2.
If the housing assembly (15) is
replacement only
being reused with original bearings
intact, place housing on a clean
work surface with the housing
wearplate surface up. Apply a
small amount of clean grease to a
new inner seal (16). Deform the
seal between two fingers and
insert the seal into the housing
seal cavity between the back-up
washer (17) and a thrust washer
(13). SEE FIGURE 30. The seal
must be properly seated and
against the back-up washer (17),
with the seal lip facing the thrust
washer (13). The back-up washer
(17) must be seated against the
retaining ring (18). Go directly to
assembly procedure #8.
NOTE
NOTE: You will probably have to
pick-up the housing and use
fingers through each end of the
housing to seat the seal into the
correct position.
15
