Replacing The Gears And/Or Slider Assembly - Titan SPEEFLO PowrLiner 2850 Notice D'utilisation

Replacing the Sprayer ON/OFF Switch
1. Perform the Pressure Relief Procedure.
2. Using a Phillips screwdriver, remove the four screws that
secure the heat sink assembly to the housing. Carefully
remove the heat sink assembly from the housing. Gently
move the assembly away from the sprayer and allow the
assembly to hang from the housing.
3. Locate the bottom of the sprayer ON/OFF switch inside the
housing.
ON/OFF
Switch
Heat Sink
Assembly
Heat Sink
Assembly
Screw
4. Disconnect the switch wires from the sprayer ON/OFF switch.
Remember the locations of each of the two wires (label the
wires, if necessary).
5. Depress the mounting tabs on each corner of the sprayer ON/
OFF switch inside the housing and remove the switch through
the top of the housing.
6. Snap the new sprayer ON/OFF switch into the switch hole in
the housing.
7. Connect the two switch wires to the new sprayer ON/
OFF switch. Make sure the wires are connected to the
corresponding terminals from which they were removed (refer
to the labels created earlier in this procedure or the electrical
schematic in the Parts List section of this manual).
8. Carefully place the heat sink assembly over the housing taking
care not to pinch any wires.
9. Install the four screws that secure the heat sink assembly to
the housing. Tighten securely.

Replacing the Gears and/or Slider Assembly

1. Using a Phillips screwdriver, remove the four front cover
screws. Remove the front cover.
2. Start the engine (refer to the procedures in the Operation
section of this manual). Turn the pressure control knob
clockwise to its maximum pressure setting.
3. Toggle the sprayer ON/OFF switch between the ON and OFF
positions in short bursts until the slider assembly and piston
stop at the bottom of their stroke (in their lowest position).
4. Turn off the engine and perform the Pressure Relief Procedure.
NOTE: If replacing the
slider assembly,
the fluid section
must be removed
from the pump
housing.
5. Using a 3/8" hex wrench,
remove the two socket
screws that secure the
fluid section to the pump
housing.
6. Pull fluid section housing
down approximately
1/2" from the gear box
housing to clear the
transducer.
7. Slide the fluid section housing and piston rod forward until
the piston rod is out of the T-slot on the slider assembly.
8. Using a 1/4" hex wrench,remove the four socket screws that
secure the pump housing to the gear housing.
© Titan Tool Inc. All rights reserved.
Relay
Pump
Housing
Slider
Assembly
Piston
Front
Cover
Fluid
Screw
Section
Housing
Front
Cover
Socket
Screw
Output Gear Assembly
Thrust Washer
Housing Gasket
Pump Housing
Slider Assembly
Pump Housing Socket Screw
9. Slide the pump housing away from the gear housing.
10. Remove and clean the housing gasket. Replace if damaged.
11. Slide the crankshaft assembly, with the two thrust washers out
from the gear housing side of the pump housing.
12. Remove the output gear assembly with the two thrust
washers.
13. Thoroughly clean the crankshaft assembly, the output gear
assembly, and all the thrust washers.
14. Inspect all parts for excessive wear and replace if damaged or
worn. If the crankshaft or output gear assembly are replaced,
replace the corresponding thrust washers as well.
15. Inspect the pinion gear on the end of the drive shaft for wear.
Replace if damaged or worn (refer to the "Servicing the Clutch
Assembly" procedure in this section).
NOTE: If any of the gears are worn and require
replacement, check the grease in the gear housing
for metal particles or shavings. Remove the
contaminated grease. Replace the grease that has
been removed with fresh Lubriplate GR-132 grease.
16. Slide the slider assembly up and out of the slider bushing in
the front of the pump housing.
17. Check the parts for wear.
a. If the slider bushing is scored or out of round the pump housing
should be replaced.
b. If the slider assembly is scored or the connection between the
connecting rod and slider assembly exhibits movement other than
pivoting movement, the slider assembly should be replaced. The
slider assembly also should be replaced if the connecting rod bearing
shows signs of wear.
c. Any parts that will be reused should be cleaned thoroughly, including
the connecting rod. Also, clean the crankshaft pin that the connecting
rod bearing rides on.
18. Coat the output gear assembly and each side of its thrust
washers with fresh Lubriplate GR-132 grease. Place the thrust
washers on their proper shaft of the output gear assembly.
19. Lubricate the output gear assembly with fresh Lubriplate GR-
132 grease. Insert the gear assembly into its bore in the gear
housing, gear end first. The teeth on the gear will mate with
the teeth on the drive shaft pinion.
20. Generously coat all surfaces of the cylindrical crankshaft
assembly thrust washer with fresh Lubriplate GR-132 grease.
21. Slip the flat end of the cylindrical thrust washer behind the
gear on the output gear assembly, lining its bore up with the
gear housing bearing bore for the crankshaft assembly.
22. Lubricate the crankshaft assembly gear with fresh Lubriplate
GR-132 grease. Slide the gear side shaft of the crankshaft
through the cylindrical thrust washer and into its bore within
the gear housing.
23. Position the pin on the end of the crankshaft towards the bottom
of the gear housing (the bottom dead center position).
11
Gear Housing
Thrust Washer
Cylindrical
Thrust Washer
Crankshaft
Assembly
Thrust
Washer
Slider Bushing
English