Servicing The Pump Assembly - Titan AirCoat Série Mode D'emploi

Servicing
8.2 Servicing the Fluid Pump Assembly
3
14*
15
16*
17*
18*
13
7
8
6
9*
10
11*
5
2
1*
19
4
20*
*21
22*
23
24
25*
12
25
GB
use of non-Titan manufactured service parts may
void warranty.
Attention
The 423/620 Series Pumps should receive service as required if there
is excessive leakage from the top packing, or if pump strokes become
faster on one stroke or another. The use of Titan Piston Lube Part
# 314-480 is recommended as an upper packing lubricant. Do not
substitute oil, water or solvent for an upper packing lubricant.
Disassembly Procedure
1. Test pump before disassembly. Follow test procedure in
Troubleshooting Guide - Fluid Section.
2. Remove siphon hose assembly or siphon tube.
3. Remove the pin (1) that connects the air motor piston rod
(2) with the fluid pump displacement rod (3). Using a
wrench on the flats of the displacement rod (3), unthread the
displacement rod from the piston rod.
4. Remove the lower stanchion nuts (4). Gently lower the fluid
pump away from the air motor.
5. For easier disassembly, unthread and remove foot valve (5).
6. Remove the O-ring (7), ball cage (8), ball (9), ball seat (10) and
PTFE O-ring (11) from the foot valve (5). Remove the ball pin
(6) from the ball cage (8).
7. Push the displacement rod (3) down as far as possible. Pull it
out the bottom of the cylinder (12).
8. Secure the flats of the displacement rod (3) in a vise. Using a
wrench, loosen and remove the piston seat (13).
9. Remove the ball (14), retainer (15), and the lower packing set
(16-18).
10. Place the pump block upside down (19) in a vise. Using a
wrench on the flats of the cylinder (12), unthread the cylinder
from the pump block.
11. Remove the upper packing set (20-22), upper spring (23), and
spring retainer (24) from the pump block.
12. Remove the O-rings (25) from the top and the bottom of the
cylinder.
13. Clean and inspect all parts. Inspect displacement rod's (3)
and cylinder's (12) chrome for grooves, dents or worn areas.
Replace if hard chrome is damaged. Inspect valve seat (10)
and replace if cracked or worn.
14. Repair the fluid pump by using all of the parts contained in the
kit. For any other parts not included in the kit, replace those
as needed.
20 AirCoat