Repair
11.Use an
12.Pull intake seat (20) out bottom of intake valve hous- ing (19). Take care not to drop intake valve assem- bly (R) as it comes free, and set it aside for later.
If seat (20) is difficult to remove, insert a hammer 
and brass rod through the top of housing (19) and drive seat out.
19
R
20
21
r_000000_312375_2
FIG. 10
13.Use a rubber mallet to drive displacement rod (1) and priming piston rod (24) out of outlet housing (2). Inspect outer surfaces of rods for damage by run- ning a finger over the surface.
1
2
24
ti10568a
FIG. 11
Steps 14-19 apply to 500cc displacement 
pumps only.
14.500cc Displacement Pumps Only: use a socket wrench to remove six capscrews (45).
45
ti10584a
FIG. 12
15.Tap underside of outlet housing (2) with a rubber mallet to loosen housing from cylinder (17). Lift out- let housing off displacement pump and set it aside. Be careful not to scratch displacement rod (1) while removing housing. Remove seal (18) from top of cyl- inder.
16.Lift cylinder (17) up off intake housing (22). Dis- placement rod (1), piston assembly, intake valve assembly, and priming piston rod (24) will come with cylinder.
17.Place cylinder (17) sideways in a vise with soft jaws. Using a rubber mallet on end of priming piston rod (24), drive displacement rod (1) and piston assem- bly out of the top of the cylinder. Continue to pull rod out of cylinder until priming piston rod (24) comes free.
18.Remove seal (18) from bottom of cylinder (17). Hold cylinder up to light at an angle to examine inside surface for scoring and damage.
10 | 312375J |