![background image](http://html.mh-extra.com/html/graco/linelazer-es-2000/linelazer-es-2000_repair-manual_2250940012.webp)
Service
12
310643W
18. Slide piston assembly into bottom of sleeve. Make
sure V-packing and u-cup are not rolled over or
damaged.
Mark IV models:
Install o-ring (231) on
sleeve spacer (230). Install sleeve spacer on
sleeve.
19. Grease top inch or two of piston rod that will go
through the cylinder throat packings.
20. Grease o-ring (221) and place on sleeve. Slide
sleeve/piston rod assembly into bottom of cylinder.
Replace o-ring (207) if desired.
NOTE:
O-ring (207)
is not required for safe pump operation.
21. Torque seal and packing nut (202) down onto throat
adjustment spacer (228) to 100 +/- 10 in-lb (11.3 +/-
1.1 N•m).
Remove o-ring when pump packings begin to leak
after extended use. Then tighten packing nut down
until leakage stops or reduces. This allows approxi-
mately 100 gallons of additional operation before a
repacking is required.
22. Push up retaining spring (26) with screwdriver.
23. Push in pin (29).
NOTE:
Make sure retaining ring
falls into slot.
NOTICE
Do not slide piston assembly into top of sleeve as this
may damage piston packing.
ti7341a
Mark IV
ti7579a
ti4258j
207
221
ti7726b
202
228
ti4258k
26
ti4258m
29
26