Servicing The Fluid Section - Titan POWRLINER PL4955 Manuel D'entretien

Repairs
2.5

Servicing the Fluid Section

PL4955
1
2
3
4
5
Use of non-Titan service parts may void warranty.
Ask for original parts made by Titan for best services.
This pump should receive a routine servicing after
approximately 1,000 hours of use. Earlier servicing
Attention
is required if there is excessive leakage from the top
packing or if pump strokes become faster on one
stroke or the other. The use of Titan Piston Lube
(P/N 314-480) is recommended as an upper packing
lubricant. Do not substitute oil, water, or solvent for
an upper packing lubricant.
i Numbers in parentheses refer to the item numbers
in the fluid section illustrations. If there are two
numbers, the first number represents the item
number for the PL4955 and the second number
represents the item number for the PL6955 / PL8955.
6
23
14
7
8
15
9
3
21
4
16
10
17
11
18
12
19
13
20
GB
PL6955 / PL8955
1
2
3
4
5
Disassembling the Fluid Section
1a. Remove the siphon hose assembly. Unthread the foot valve
housing (20,21) and the pump cylinder (14) with a strap
wrench.
If the pump cylinder (14) cannot be removed with a
i
strap wrench, use the jam nut (23, 22) to remove it
from the pump housing.
1b. Loosen the jam nut (23, 22) on the cylinder until it bottoms
out on the cylinder threads. Place a wrench on the flats of the
jam nut and turn the wrench counterclockwise to loosen the
cylinder.
2. Slide the retainer ring (1) up with a small screwdriver, then
push the connecting pin (2) out.
3. Pull the displacement rod (6) through the lower cavity of the
motor/pump block.
4. Remove the PTFE o-ring (3), upper packing spring (5), and
upper packing set (4) from the motor/pump block.
5. Hold the displacement rod (6) in a vise by the flats at the top
of the displacement rod and remove the outlet valve housing
(13) with a wrench while holding the displacement rod
horizontal with wooden support, if necessary. Remove the
seal washer (12), outlet valve seat (11), outlet valve ball (10),
outlet valve cage (9, PL6955/PL8955) lower packing set (4),
lower packing spring (9,8), sleeve (8, PL4955 only), and spring
retainer (7, PL4955 only).
6. Using a 1/2" extension bar attached to a 1/2" drive ratchet,
insert the end of the extension bar into the square opening
of the foot valve cage (16,17) inside the foot valve housing
10
6
22
14
8
15
3
16
4
17
9
18
10
19
11
20
12
13
21
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