Replacing The Pump On/Off Switch; Replacing The Gears And/Or Slider Assembly - Titan SPEEFLO PowrLiner 2850 Manual Del Propietário

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.
© Titan Tool Inc. All rights reserved.
Relay
Pump
Housing
Slider
Assembly
Piston
Front
Cover
Fluid
Screw
Section
Housing
Front
Cover
Socket
Screw
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.
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.
11
Gear Housing
Thrust Washer
Cylindrical
Thrust Washer
Crankshaft
Assembly
Thrust
Washer
Slider Bushing
English