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Finish Nailer Repair - Replacing the Driver Guide (Ridgid Part # 79004001022)
Article Breakdown
Finish Nailer Repair - Replacing the Driver Guide (Ridgid Part # 79004001022)
Tools & Materials
Chainsaw need a checkup? It's time to face the fix. Whether you are a legendary lumberjack or a weekend woodworker, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you.
Does your saw's chain skip or stall? You might need a new clutch drum. The clutch drum attaches over the clutch assembly on the saw. When engine RPMs are increased, the clutch expands to make contact with the clutch drum. This spins the clutch drum, and in turn, the chain.
The chain sprocket is also part of the clutch drum. The sprocket drives the chain by way of the chain's drive links. Over time, the chain will wear down the sprocket to the point that the drive links may begin to skip on the sprocket.
If the saw is stalled often, or if the saw is run with the brake engaged, the clutch drum can be overheated. This will often lead to the clutch not making proper contact with the drum, or an out of round drum.
This article provides step-by-step instructions for removing and installing the clutch drum on a Poulan chainsaw.
Let's get started. REMOVING THE CLUTCH DRUM [top] 1. Remove the clutch cover assembly.
Remove the (2) nuts from the bar mounting bolts.
Rotate the chain tensioner screw counterclockwise to release tension from the chain.
Remove the clutch cover assembly.
2. Remove the bar and chain assembly.
Remove the bar and chain assembly from the saw.
3. Remove the clutch drum.
Use a small screwdriver to pry the clutch drum retaining clip away from the shaft.
Remove the (large) clutch drum washer from the clutch drum.
Slide the clutch drum away from the clutch assembly.
INSTALLING THE NEW CLUTCH DRUM [top] 4. Install the clutch drum.
Install the new clutch drum onto the clutch.
Install the outer (large) clutch washer.
Align the clutch retaining clip with the shaft.
Use long-nosed pliers to seat the retaining clip on the shaft (and secure the clutch drum).
REASSEMBLING THE UNIT [top] 5. Reinstall the bar and chain.
Lay the bar on a flat surface.
Install the chain onto the bar; ensuring that the sharp side of the teeth (along the bottom of the bar) are facing the saw.
Partially install the bar and chain assembly onto the saw, ensuring that the chain engages the drive sprocket on the clutch drum.
Continue installing the bar (and chain) over the bar bolts.
Pull the bar assembly forward (away from the engine) to align the drive links (on the chain) with the groove in the bar.
6. Reinstall the clutch cover assembly.
Install the clutch cover assembly.
Apply (side) pressure to the clutch cover assembly.
Using a long screwdriver, rotate the tensioner screw (in either direction) until the bar adjustment pin engages the hole on the bar. (The entire assembly should snap into place when this occurs).
Once the adjustment pin engages the bar; rotate the tensioner screw in the opposite direction until the chain begins to tension.
Install and hand-tighten the bar nuts.
7. Tension the chain.
Grasp and raise the distant end of the bar and chain assembly (opposite the engine) until the saw begins to rise.
While holding the bar in the raised position, grasp the chain at the center (and top) of the bar.
Lift the chain away from the bar assembly and inspect the gap between the two components.
The chain is tensioned correctly when the weight of the chain does not cause it to sag below the guide bar.
Rotate the tensioner screw (as necessary) to tighten or loosen the chain until it is correctly tensioned.
Tighten the bar nuts to secure the clutch cover assembly.
Do-it-yourself repairs like these are easier than you might think: From lawn machines to cordless drills, kitchen mixers to outdoor grills. Our "how-to" articles walk you through each repair from start to finish.
So, doing-it-yourself means never having to do it alone.