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How to Service Stihl SR 450 - Sprayer/Blower? Special Clamps (Clips)?
#1
S
sitstihl
S
sitstihl
Hello!
I've got an Stihl SR 450 backpack blower/sprayer and need to service the nozzle and valve area.
My biggest problem is getting started: I can't disassemble it. I don't recognize the special clamps/circlips that hold the tubing onto the handle and nozzle. (Photo attached)
Does this take a special tool?
More info: The sprayer is not spraying much liquid anymore. (I can still flip the tank and spray solids like seed and fertilizer, so I think the tank area is still flowing.)
I HOPE I only need to thoroughly clean the clear tube, shut-off valve and the meter knob and nozzle to get it working.
I would prefer to take it to a shop, but the only Stihl service center anywhere near me closed a few years ago. There are no shops near me that service Stihl.
I've asked a small engine repair shop I've gone to before, and he said he won't mess with Stihl products, especially their sprayers.
I'd love to find a service manual, but my searches have not found anything.
I would appreciate any help you can provide! I have had this sprayer for many years and love it. It's been out of commission and I need to get it working -- the mosquitoes have gone on a rampage since my sprayer has been down!
I've got an Stihl SR 450 backpack blower/sprayer and need to service the nozzle and valve area.
My biggest problem is getting started: I can't disassemble it. I don't recognize the special clamps/circlips that hold the tubing onto the handle and nozzle. (Photo attached)
Does this take a special tool?
More info: The sprayer is not spraying much liquid anymore. (I can still flip the tank and spray solids like seed and fertilizer, so I think the tank area is still flowing.)
I HOPE I only need to thoroughly clean the clear tube, shut-off valve and the meter knob and nozzle to get it working.
I would prefer to take it to a shop, but the only Stihl service center anywhere near me closed a few years ago. There are no shops near me that service Stihl.
I've asked a small engine repair shop I've gone to before, and he said he won't mess with Stihl products, especially their sprayers.
I'd love to find a service manual, but my searches have not found anything.
I would appreciate any help you can provide! I have had this sprayer for many years and love it. It's been out of commission and I need to get it working -- the mosquitoes have gone on a rampage since my sprayer has been down!
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#2
ILENGINE
ILENGINE
#3
Fish
Fish
I uploaded the manual for you here:Hello!
I've got an Stihl SR 450 backpack blower/sprayer and need to service the nozzle and valve area.
My biggest problem is getting started: I can't disassemble it. I don't recognize the special clamps/circlips that hold the tubing onto the handle and nozzle. (Photo attached)
Does this take a special tool?
More info: The sprayer is not spraying much liquid anymore. (I can still flip the tank and spray solids like seed and fertilizer, so I think the tank area is still flowing.)
I HOPE I only need to thoroughly clean the clear tube, shut-off valve and the meter knob and nozzle to get it working.
I would prefer to take it to a shop, but the only Stihl service center anywhere near me closed a few years ago. There are no shops near me that service Stihl.
I've asked a small engine repair shop I've gone to before, and he said he won't mess with Stihl products, especially their sprayers.
I'd love to find a service manual, but my searches have not found anything.
I would appreciate any help you can provide! I have had this sprayer for many years and love it. It's been out of commission and I need to get it working -- the mosquitoes have gone on a rampage since my sprayer has been down!