The line is supposed to advance automatically, and mine did the first couple of times. But it no longer advances, and I have to take it apart and manually advance it.

no this is a autofeed head it is suppose to maintain a length of cord automatically . but as it does not say in manual ill let you know a few unwritten details , it will only feed line out when ran at full speed , and it automatically cuts ends of new line to keep a sharp edge, so caution ends can come flying off at anytime with no warning , these sometimes do have a problem if one does not observe direction of arrows to show direction too wind new line on spool, or if line is wound too tightly on the spool , line should slip off the spool with ease , less line is more line in this case

Hi don watts46...
Bump the rotating end of the trimmer on the ground while it is running and it will automatically feed the line out, the more you bump the more line feeds out.
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There is usually a sliding tab on the side of the projector (behind the handle) that toggles between "manual" and "automatic" advance. (Some models will have a couple of pre-set advance settings between "manual" and "automatic." These usually advance the slides every three to ten seconds.) Push the tab to the manual setting--this will allow you to use the buttons towards the front of the machine to advance your slides.If moving the tab doesn't work it may be broken or jammed.

Go to Start->Settings->Connections->Tasks->Add a new modem connection:

Enter a name for the connection:
ex. Vodafone

Select a modem:
Cellular Line(GPRS)

click next

Acess point name:
portalnmms

User name:
Password:
Domain:*

Go to Advanced->TCP/IP
select radio button "Use server-assigned IP address"

Go to Advanced->Servers
select radio buttion "Use server-assigned address"


Step 2
Start->Settings->Connections->Tasks->add proxy setting

Select "This network connects to the Internet"
Select "This network uses a proxy server to connect to the Internet"

Click "Advanced" button
Tap on HTTP
Server: 10.10.1.100 Port:9401

Username:
Password:
Domain:

Tap on WAP
Server: 10.10.1.100 Port:9401

Username:
Password:
Domain:

Step3:
Start->Settings->Connections->Advanced
In "Select which networks are automatically used"-> click the Select Networks
Programs that automatically connect to the Internet should connect using:
Select the Connection name which you configured in Step 1

Programs that automatically connect to a private network should connect using:
Select the Connection name which you configured in Step 1

Reboot the mobile for the changes to take effect.

You do not need to bump the head to advance the line. The machine has automatic line feed. If the line will not advance, then there is a problem with the line spool, possibly a tangle inside on it. Here is your instruction manual.
http://tinyurl.com/2vz3fhb

Number of possibilities.
One rare situation is that accumulated carbon in the head can increase compression and require a switch to premium gas.
Another is that the compression is supposed to be high but that they count on the EGR to poison the mixture enough to prevent it. So a malfunctioning EGR can cause ping.
Another is that the in some cars, the centrifugal or vacuum advance can be weak and cause timing to be too advanced when reved up.
Most cars also have a knock sensor that is supposed to automatically prevent ignition timing advance if the fuel is not up to it, and it could be bad.

First thing I would try is a tank full of premium, or an octane additive. Then I would try backing off the ignition timing, regardless of what the spec says it is supposed to be. I would also check the timing with all hoses on, with a strobe light, and at high RPM, to check advance.

the notice on the trimmer says it has an AFS Automatic Feed Spool, "NO BUMPING REQUIRED". I see that underneath the spool, there's a small plastic centrifugal weightwith a peg on it. . It kinda looks like it might advance the line each time the electric motor starts and stops. If there are loose clippings in there, or if the weight is stuck, it probably would cause the problem.

4.2L 6-Cylinder

1. Set parking brake. Shift automatic transmission to Park or manual transmission to Neutral. With A/C off, start engine and attain normal operating temperature.

2. With ignition OFF, connect an ignition timing light and a calibrated, expanded-scale tachometer.

3. Disconnect 4 " and 10 " Hg (CEC System) vacuum switch assembly wire connector (located at top of valve cover). Disconnect and plug distributor vacuum advance hose.

4. Start engine, increase engine speed to 1600 RPM and check ignition timing. Adjust timing to specification listed on Emission Control Information label (if necessary). Tighten distributor hold-down clamp and recheck ignition timing.

5. Turn engine off and remove timing light and tachometer. Connect No. 1 spark plug lead, if disconnected. Unplug and connect distributor vacuum advance hose. Connect vacuum switch assembly wire connector.

NOTE: If timing light has an adjustable advance control feature, turn control to OFF position.

Timing is set per the emissions tag under hood.

On the face of your player you should have a couple sets of buttons relating to advancing the cd in the player. One should be for advancing the next track on a given cd, often designated by a single arrow. The second is for advancing to the next cd and will be designated by a double arrow symbol.
While the drawer is open try press the the double arrow button. This should advance the player to the next empty position. If this fails you may want to try the other buttons as well.

You should do fine with this part. While it is apart look for any leaks and make sure that the hoses are all connected before you reassemble the machine.