Difficulty

Easy

Steps

8

Time Required

                          20 - 45 minutes

Sections

1

  • Gun Rebuild
  • 8 steps

Flags

0

  • BackGraco Paint Sprayers 17C325 (2015)

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Introduction

As you disassemble the spray gun, take the time to clean all the parts with soap, water, and a brush before reassembly, and replace any worn-out parts as needed, which are provided in the gun repair kit (part # 288817).

The filter is not included in the repair kit, but it may be a good idea to clean or replace it during the rebuild process.

What you need

Step 1

              Remove the Spray Tip
  • Before you begin, make sure to follow the pressure relief procedure documented in the user manual before disconnecting and disassembling the spray gun.
  • Pull the spray tip straight up and out of its housing near the front of the spray gun.

Before you begin, make sure to follow the pressure relief procedure documented in the user manual before disconnecting and disassembling the spray gun.

Pull the spray tip straight up and out of its housing near the front of the spray gun.

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Step 2

              Remove the Nozzle Guard
  • Use your fingers to unscrew and remove the nozzle guard.
  • You may need to use an adjustable wrench to loosen the nut.

Use your fingers to unscrew and remove the nozzle guard.

You may need to use an adjustable wrench to loosen the nut.

Step 3

              Remove the End Cap Lock Nut
  • Use a 5/16" socket and socket wrench to remove the lock nut securing the end cap on the back of the spray gun.
  • Replace the lock nut with the new lock nut included in the gun repair kit.

Use a 5/16" socket and socket wrench to remove the lock nut securing the end cap on the back of the spray gun.

Replace the lock nut with the new lock nut included in the gun repair kit.

Step 4

              Remove the End Cap
  • Pull the end cap straight off the end of the spray gun.
  • Reassembly Tip: Make sure the holes on the end cap line up with the actuator pins and needle.

Pull the end cap straight off the end of the spray gun.

Reassembly Tip: Make sure the holes on the end cap line up with the actuator pins and needle.

Step 5

              Remove the Actuator Pins
  • Pull the two actuator pins straight out of the spray gun.

Pull the two actuator pins straight out of the spray gun.

Step 6

              Loosen the Trigger Guard
  • Push up on the trigger guard to unseat it from its clip at the bottom of the handle.

Push up on the trigger guard to unseat it from its clip at the bottom of the handle.

Step 7

              Remove the Valve Seat and Trigger Guard
  • Use a 5/8" wrench to remove the valve seat from the front of the spray gun.
  • This will also allow you to completely remove the trigger guard.
  • Replace the valve seat with the new valve seat included in the gun repair kit. Torque the valve seat to 26-32 ft. lb during reinstallation.

Use a 5/8" wrench to remove the valve seat from the front of the spray gun.

This will also allow you to completely remove the trigger guard.

Replace the valve seat with the new valve seat included in the gun repair kit. Torque the valve seat to 26-32 ft. lb during reinstallation.

Step 8

              Remove the Gun Needle
  • Grab the front tip of the gun needle and pull it straight out of the housing.
  • Replace the needle with the new needle included in the gun repair kit.

Grab the front tip of the gun needle and pull it straight out of the housing.

Replace the needle with the new needle included in the gun repair kit.

To reassemble your device, follow these instructions in reverse order.

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                    Craig Lloyd

Member since: 02/10/2016

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YURIY - Jul 20, 2020

Reply

if you use this procedure you brake your gun

Arthur Shi - Jul 21, 2020

Hi YURIY,

To help us improve the guide, can you please elaborate what would break? Any specific steps? Any extra detail would help. Thanks!

William Pinkston - Oct 17, 2022

Reply

I can’t break the tip loose. The piece that u screw the tip on to. I can’t break it loose.