Difficulty
Moderate
Steps
10
Time Required
20 - 30 minutes
Sections
5
- Wacker Pump PT3A 2012 Safety Precautions
- 1 step
- Pump Housing Cover
- 2 steps
- Recoil Starter
- 2 steps
- Impeller
- 3 steps
- Mechanical Seal
- 2 steps
Flags
0
BackWacker Pump PT3A (2012)
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Introduction
Note: There are several versions of this device, and each uses a different mechanical seal design that’s incompatible with the others. Contact Wacker Neuson with the device serial number, and they will confirm which mechanical seal you need for the device.
What you need
Step 1
Disconnect the spark plug wire
- Before you begin, make sure the device is switched off and the engine is cool to the touch.
- Grab the plastic housing at the end of the spark plug wire.
- Pull firmly to disconnect the wire from the spark plug.
Before you begin, make sure the device is switched off and the engine is cool to the touch.
Grab the plastic housing at the end of the spark plug wire.
Pull firmly to disconnect the wire from the spark plug.
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Step 2
Remove the pump housing cover
- Use the included wrench to loosen the four black knobs securing the pump housing cover.
- If the wrench is missing, slide a screwdriver shank through the knob and twist to loosen the knobs.
Use the included wrench to loosen the four black knobs securing the pump housing cover.
If the wrench is missing, slide a screwdriver shank through the knob and twist to loosen the knobs.
Step 3
- Slide the pump housing cover out of the pump and remove it.
Slide the pump housing cover out of the pump and remove it.
Step 4
Remove the recoil starter
- Use a 10 mm socket and wrench to remove the three bolts securing the recoil starter.
Use a 10 mm socket and wrench to remove the three bolts securing the recoil starter.
Step 5
- Remove the recoil starter from the engine.
Remove the recoil starter from the engine.
Step 6
Brace the driveline
- Slide a large screwdriver through the slots in the starter cap and brace the screwdriver with a wooden block to prevent the driveline from turning clockwise.
Slide a large screwdriver through the slots in the starter cap and brace the screwdriver with a wooden block to prevent the driveline from turning clockwise.
Step 7
Remove the impeller
- Use a 19 mm socket, extension, and wrench to loosen the impeller from the driveline.
Use a 19 mm socket, extension, and wrench to loosen the impeller from the driveline.
Step 8
- Remove the impeller from the driveline.
Remove the impeller from the driveline.
Step 9
Remove the washers
- Remove the two washers from the driveline.
- Replace these washers if they look worn.
Remove the two washers from the driveline.
Replace these washers if they look worn.
Step 10
Remove the mechanical seal
- Use a flathead screwdriver to pry and loosen the mechanical seal from its recess.
- Remove the mechanical seal.
Use a flathead screwdriver to pry and loosen the mechanical seal from its recess.
Remove the mechanical seal.
To reassemble your device, follow these instructions in reverse order.
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Author
Arthur Shi
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