Hs45, Hs 45 Hedge Trimmer Bottom Gear Box Cover Part…

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Low compression equals bad rings…
If the unit is fairly new, that shouldn’t be a problem. If what you mean 8s that when u engage the throttle and it’s not getting more power, check your carburetor setting. Look for the “H” . When you adjust this needle , hold the throttle in as you do it.

How to Identify and Fix Common Gardening Problems ?

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Checking for debris or damaged blades: Visually inspect the blades and confirm there is no debris stopping the blades from moving. If there is debris ensure the machine is powered off when removing any blockages. Check the blades for any damage as a damaged cutting blade could cause the machine to stop working.
The standard settings for the HS45 are set as followed (as advised by Stihl): Turn the high speed screw (H) counterclockwise as far as stop (no more than 3/4 turn). Turn the low speed screw (L) clockwise as far as stop, then turn it back 3/4 turn. *Please note: Do not overturn the screw as this may damage the thread.
A clogged carburetor is most commonly caused by leaving fuel in the hedge trimmer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to stall or run roughly.
What is the correct spark plug gap for my STIHL trimmer, chainsaw or blower? The correct gap setting is 0.020″.
This can be due to corrosion, scratches or general wear. As a result, the cutting edges of the cutter comb of your blades are no longer sharp, reducing their ability to cut. Sharpening the blade is required to reface the cutting surfaces restore these sharp edges.
If your engine runs, but the trimmer blades do not move when the throttle is engaged, the clutch may be broken or improperly tensioned. The clutch is attached to the crankshaft, and engages the gearbox to start rotating once a certain rotational speed is reached.
If your carburettor has a main jet adjustment screw at the base of the float bowl, turn the screw clockwise until you feel it just touch the seat inside the emulsion tube. Then, turn the screw counterclockwise 1 to 1-1/2 turns. Replace the air cleaner assembly and start the engine for final carburettor adjustments.
For best operation and longer blade life, lubricate the hedge trimmer blade with a lightweight machine oil before and after each use.
Trimmers Stopped working

If your trimmer won`t turn on, especially if it has not been used recently, you may simply have a drained battery. Plug your trimmer into your charger and see if anything happens. Ideally your trimmer will recognize it has been connected to a power source and charge its battery.

MS= Motosäge = Chainsaw. FS= Freischneider = Line Trimmer. BG= Blasgerät = Handheld Blower.
The gap between the spark plug`s center electrode and outer electrode should be set at 0.02 inch, or 0.5 millimeter, for most Husqvarna trimmer models.
The blade drive is generally the biggest culprit in why freshly sharpened blades won`t cut. The blade drive holds the socket in place to drive the cutter evenly along the deck of the blade. Over time the drive/lever edges wear down and become rounded or worn which affects the performance of the clipper blade.
For best operation and longer blade life, lubricate the hedge trimmer blade with a lightweight machine oil before and after each use.
General hedge trimmer maintenance: occasionally and as required. Sharpen the cutting blades and, when necessary, have damaged or worn blades professionally replaced. Using a hedge trimmer with blunt blades will damage your plants and make work unnecessarily difficult.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

When I hold the bar down that engages the blade it will not cut?
ANSWER : Is the blade sharp?

Blade won’t engage – mower starts and propells itself, but when the yellow arm is pulled and lowered to engage the blade, nothing happens.
ANSWER : The blade is probably belt driven, and the belt is either broken, need adjusting, worn that bad, or there is a pulley problem. Get it in the air and check that the belt tightens. It will not be completely tight, there should be a tiny bit of play when engaged.

Mowing deck makes ticking noise when blades are engaged.
ANSWER : A FEW THINGS TO LOOK AT ARE ,1THE PULLY SHIELDSMAKE SURE THEY AREN’T BENT TO CLOSE TO THE PULLEY’S.2 THE PULLEY BEARING’S MAY BE WORE OUT AND TO BREAK .3LOOK UNDER THE DECK TO MAKE SURE YOU DIDN’T GET SOMETHING TRAPED IN THE CUTTING DECK.HOPE THIS HELPED.

The edger is not cutting very well. Any tips to make it work better?
ANSWER : You said cutting, not running, so I suggest removing the blade and sharpening on a grinder or buying a replacement blade.I hope you find this very helpful.

I have a Craftsman FS5500 48″ lawn mower. The PTO makes a noise (squeak) for a second when I pull up on the red blade engage knob. The blades do not engage. PTO does not turn. When I push the red button down to disengage there is a brief squeak from the PTO.

It worked well the past month then a little problem 2 weeks ago. It seemed to disengage after mowing a while. Then after sitting for 15 minutes the blades would engage. I used it earlier this week and the PTO won’t turn at all.

Just purchased from the last and original owner a month ago. He said the oil would need to be changed this summer. Could that be part of the problem? Engine runs great!

Also, I need an owners manual, not able to find from the previous owner.

Thanks

ANSWER : Hi,The problem is probably in the button that you pull and push to engaged and disengage the PTO… If you wiggle the button or try to pull it slowly, you may find a spot where it will work. But the button has gone bad and will need to be replaced.If you are comfortable with wiring, you could jumper the wires and getting it working, but it would be a very temporary and possibly dangerous fix…

Blades wont ingage on my craftsman lawn tractor #917.274811?
ANSWER : After hitting a tree root, blades will not cut when I press to engage

Blades wont operate when engaged – Craftsman 20 Hp 42" Deck Lawn Tractor
ANSWER : Check the PTO switch it may have worn out

Engine dies if i engage blades or take my foot off the brake
ANSWER : You likely need to replace the brake switch,the seat switch can also cause the same problem.Most likely problem is the seat switch,i would try that first.The pto or the reverse switch can cause a shut down but not until you try to mow,seat switch is the most suspect.