Servicing The Fluid Section - Titan PowrLiner PL4950 Mode D'emploi

Maintenance
6.10

Servicing the Fluid Section

PL4950
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 PL4950 and the second number
represents the item number for the PL6950 / PL8950.
6
14
7
8
15
9
3
21
4
16
10
17
11
18
12
19
13
20
GB
PL6950 / PL8950
1
2
3
4
5
Disassembling the Fluid Section
1. Remove the siphon hose assembly. Unthread the foot valve
housing (20,21) and the pump cylinder (14) with a strap
wrench.
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, PL6950/PL8950) lower packing set (4),
lower packing spring (9,8), sleeve (8, PL4950 only), and spring
retainer (7).
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
(20,21). Unscrew and remove the foot valve cage along with
the wave washer (21,16) from the foot valve housing.
7. Remove the PTFE o-ring (3), foot valve ball (17,18), foot
valve seat (18,19), and seat o-ring (19,20) from the foot valve
housing (20,21).
8. Remove the o-ring (15) from the pump cylinder (14)
20
6
14
7
8
15
3
16
4
17
9
18
10
19
11
20
12
13
21
PowrLiner