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11) Remove the pressure ring (40A), v-sleeves (40), and
support ring (40B), from the seal sleeve. Remove the pressure
spring (41). Examine seals carefully and replace if worn. Clean
surfaces of seal sleeves (35) which come in contact with
the crankcase (1) and sealing surfaces of valve casing
(43).
35 40A 40 40 40B
7
6) Loosen the 8 nuts (49A)
with a 19mm socket and
pull off valve casing (43)
to the front.
TO CHECK SEALS AND PLUNGER PIPE
NOTE: Always take time to lubricate all metal and non-metal parts with a light film of oil before reassembling. This step
will help ensure proper fit, at the same time protecting the pump non-metal parts (elastomers) from cutting and scoring.
7) Remove the seal sleeve
(35) from the manifold
and /or crankcase.
8) Remove seal case (37) from
seal sleeve (35).
LP301A-5100 REPAIR INSTRUCTIONS
9) Check O-rings (39 & 38) and support rings (39A & 38A)
on seal case (37).
39 39A 37 38A 38
10) Remove leakage seal (36)
from the seal sleeve. If worn
or damaged replace with
new seal.