S h i m s (1) are used to set pressure relief valve. The
n u m b e r of shims may differ from pump to pump. Some
p u m p s may have no shims. Save all shims in new parts
k i t , even if pump you are working on had no shims.
Shims will be used later for pump test and adjustment.
R e l i e f valve spring (2) and plunger (3) come in a parts
k i t . The kit also has a new retaining pin (4), one of
two types of spring retainer (5), and shims (1). If any
o f these parts are damaged, all should be changed. If
k i t has two plungers, the longer one is for this pump.
S o m e early model oil pumps used washer (6) instead of one of two types of
s p r i n g retainer (5) to hold in relief valve plunger (3) and spring (2). If
w o r k i n g on pump with washer, threw away washer and get a parts kit
w i t h new spring retainer, retaining pin (4), plunger, spring, and shims (1).
Dry cleaning solvent is flammable. Do not use near
an open flame. Keep a fire extinguisher nearby when
solvent is used. Use only in well-ventilated places.
Failure to do this may result in injury to personnel
and damage to equipment.
Check that spring retainer (5), spring (2), and plunger (3) have no
c r a c k s o r b u r r s . Fix small burrs with a fine mill file or crocus cloth
dipped in dry cleaning solvent.
If spring retainer (5), spring (2) or plunger (3) are cracked or badly
d a m a g e d , throw away spring retainer, spring, plunger, retaining pin (4),
a n d shims (1) and get new ones.
IF WORKING ON ENGINES LD-465-1, LD-465-1C OR LDT-465-1C , GO TO FRAME 5.
I F WORKING ON ENGINES LDS-465-1, LDS-465-1A OR LDS-465-2, GO TO