Servicing The Fluid Section - Titan 0290016K Service Manual

Maintenance
2.4

Servicing the Fluid Section

PT4900 Plus
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.
Numbers in parentheses refer to the item numbers
i
in the fluid section illustrations. If there are two
numbers, the first number represents the item
number for the PT4900 Plus and the second number
represents the item number for the PT6900 Plus /
PT8900 Plus / PT12000 Plus.
6
23
14
7
8
15
9
3
21
4
16
10
17
11
18
12
19
13
20
GB
PT6900 Plus / PT8900 Plus / PT12000 Plus
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 removal nut (23, 22) to remove
it from the pump housing.
1b. Loosen the removal nut (23, 22) on the cylinder until it
bottoms out on the cylinder threads. Place a wrench on the
flats of the removal 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, PT6900/PT8900/PT12000) lower packing
set (4), lower packing spring (9,8), sleeve (8, PT4900 only), and
spring retainer (7, PT4900 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
PowrTwin Plus