PS M6.1 6140
001 OE35
Version no T-code
F-code Section C-code
Lift Pump Assembly
254
Service Manual 1997-12-15
3. Inspection
1. Thoroughly clean all parts and remove all nicks
and burrs with emery cloth.
2. Inspect wear plate (8) and thrust plate (8). Replace
if scoring or uneven wear is found.
3. Remove pressure loading seal (5) and Nylatron (4)
from wear plate. This seal may be two-piece or
one-piece design. In either case, discard old seal
or seals. All replacement seals are two-piece
design and should be installed into groove. The
seal should extend a minimum of 0.005 in. (0.127
mm) beyond surface of wear plate. Do not push
seals below wear plate surface at any point.
4. Inspect bushings in body and cover. Replace cover
or body if bushings are heavily scored or burned.
5. Inspect gear journals and faces. Replace if journals
or faces are scared or worn.
6. Inspect body for wear and scoring. If gear contact
wear on low pressure side (inlet) exceeds 0.005 in.
(0.127 mm) depth, replace pump. If the body is
NOTE! CLEANLINESS!
Perform procedures in a clean
environment. Make sure all parts are cleaned
before disassembly and kept clean during
assembly.
Be extremely careful when working with
solvent. Even a small explosion or fire could
cause injury or death.
WARNING
Compressed air used for cleaning
MUST
be
reduced to less than 30 psi. and then only
with effective chip-guarding and personal
protective equipment.
WARNING
NOTE!
Somewhat heavier wear pattern is normal on
the lower pressure (inlet) side of the plates
(6 and 8). However, there should be no
heavy scoring in this area.
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