Stihl MS 251 Support Question
Stihl MS 251 Support Question
Find answers below for this question about Stihl MS 251.Need a Stihl MS 251 manual? We have 1 online manual for this item!
Question posted by cristina54567 on February 9th, 2017
Parts Manual
We are looking for the parts manual for Sthil Chain Saw MS 251, 290 and 280
Current Answers
Answer #1: Posted by BusterDoogen on February 9th, 2017 1:54 PM
BusterDoogen
Member since:
October 30th, 2011 Points: 28,565,397
Member since:
October 30th, 2011 Points: 28,565,397
Go here for the available OM/PM & SM's
I hope this is helpful to you!
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Answer #2: Posted by Odin on February 9th, 2017 12:56 PM
Odin
Member since:
April 10th, 2010 Points: 41,236,640
Member since:
April 10th, 2010 Points: 41,236,640
An online parts reference for the 251, with pictures and prices, is at https://www.repairclinic.com/Shop-For-Parts/-x6d7320323531/Ms-251-Parts. You'll likely find at the same site similar references for the other two models, (Use the search box at the top.)
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Related Stihl MS 251 Manual Pages
Instruction Manual - Page 2
...Stop Buffers
68
Buffers on
Machines with
Manual Fuel Pump 85
12.5 Carburetor
88
12.5.1 Leakage Test
89
RA_737_00_01_01
MS 231, MS 231 C, MS 251, MS 251 C
q
© ANDREAS STIHL AG...Chain Tensioner
29
5.5.1 Quick Chain
Tensioner
30
5.5.2 Chain Catcher
30
5.6 Bar Mounting Stud 31
6.
Troubleshooting
8
3.1 Clutch
8
3.2 Chain Drive,
Chain Brake,
Chain Tensioner
9
3.3 Chain...
Instruction Manual - Page 3
Servicing Aids
112
2
MS 231, MS 231 C, MS 251, MS 251 C Manual Fuel Pump 105
12.11.4 Manual Fuel Pump 107
12.11.5 Tank Housing
108
13. Special Servicing Tools 110
14. Contents
12.6 Servicing
the Carburetor
90
12.6.1 Metering Diaphragm 90
12.6.2 ...
Instruction Manual - Page 4
... been introduced since they, depending on the engine housing. The manual lists all the repair and servicing procedures specific to identify the tools in the text and pictures for the use of the individual components and assemblies. MS 231, MS 231 C, MS 251, MS 251 C
3
Use the part numbers to this power tool. Symbols are intended exclusively for...
Instruction Manual - Page 5
... handling may result in the instruction manual.
Avoid damaging the hose barb -
Run the machine ...must be identified by hand, to overheating.
4
MS 231, MS 231 C, MS 251, MS 251 C
Storing and disposing of oils and fuels
Collect ... on small parts. All work with threadlocking adhesive. Check disassembled parts for servicing
Remove the chain sprocket cover, saw chain and guide bar...
Instruction Manual - Page 6
...: Crankcase leakage test at gauge pressure: under vacuum:
2.2 Fuel System
2.3 Ignition System 2.4 Chain Lubrication
MS 231
40.6 cm3 41.5 mm 30.0 mm 2.0 kW (2.7 bhp) at 9,500 rpm
13,000 rpm 2,800 rpm Centrifugal clutch without linings 3,500 rpm
0.5 bar 0.5 bar
MS 251
45.6 cm3 44.0 mm 30.0 mm 2.2 kW (3.0 bhp) at 9,500 rpm
13...
Instruction Manual - Page 19
... not start easily, stalls Oil seals in fan housing dirty
Clean air inlet on the engine:
- 3.7 Engine
Always check and, if necessary, repair the following parts before looking for faults on fan housing
18
MS 231, MS 231 C, MS 251, MS 251 C
Instruction Manual - Page 20
... "TOP" faces outwards. : Position the clutch (2) on the piston crown - MS 231, MS 231 C, MS 251, MS 251 C
19 Clean the needle cage and crankshaft stub, b 14
- Unscrew the spark... (1) off the spark plug. -
Remove and install the clutch drum, see instruction manual.
- Inspect the clutch drum (1) for signs of its metal top must butt against... - Reassemble all other parts in the illustration.
Instruction Manual - Page 21
... to one of the saw chain coming to an abrupt stop .
2310RA007 TG
1
: Remove the screw (1) from the brake lever (2).
2310RA008 TG
2310RA006 TG
- the
chain must rotate freely
when the lockout lever is less
2 than a second) is in terms of the machine.
20
MS 231, MS 231 C, MS 251, MS 251 C Engage the chain brake. the chain must come
areas...
Instruction Manual - Page 72
... as stop.
- MS 231, MS 231 C, MS 251, MS 251 C
71 Installing
1
10.1.1 Removing and Installing - Remove the choke rod, b 10.3.3
- Check the filter base and replace
2
The positions of the Master Control
it and replace if necessary. Pull the filter base off the filter base's shaft (2).
1
: Check operation - 10. Reassemble all other parts in the reverse...
Instruction Manual - Page 78
... (1) with manual fuel pump
1
2310RA200 TG
2 1
2310RA295 TG
2310RA298 TG
: Carefully pull the carburetor (1) off the studs - take care not to overstretch the fuel hose (2).
All models
-
MS 231, MS 231 C, MS 251, MS 251 C
77 Install the throttle trigger, b 10.2
1
1
2310RA294 TG
2310RA297 TG
2310RA199 TG
: Remove the fuel hose (1). Reassemble all other parts in the...
Instruction Manual - Page 89
...place.
1 2
2310RA199 TG
12.5 Carburetor
: Remove the fuel hose (1).
- Reassemble all other parts in place. Stub (3) must engage bore in place.
- Install new fuel intake hose,
b 12....11.2
2310RA353 TG
88
MS 231, MS 231 C, MS 251, MS 251 C position short circuit wire under the ground wire. Install filter base with manual fuel pump - All models
1
- Models with manual fuel pump
1
- Make...
Instruction Manual - Page 90
...vent, b 12.10
The carburetor can be fully open.
1
- MS 231, MS 231 C, MS 251, MS 251 C
89 Push the carburetor fully home. Models with nipple onto the...uniformly on to the nipple (2) 0000 855 9200.
: Push the fuel hose with manual fuel pump
1
: Push the new fuel hose (1) onto the nipples (arrows)....parts in valve seat,
sealing cone of studs are three possible causes:
- Check operation
-
Instruction Manual - Page 91
... remove them down the screws firmly in the tabs.
90
MS 231, MS 231 C, MS 251, MS 251 C Install a new gasket. Take care not to continuous ... reverse sequence.
12.6.2 Inlet Needle
- Check position of fatigue. Reassemble all other parts in the direction of the choke shutter and the holes line up.
: Fit the...a manual fuel pump, check the nipple (2) and replace the end cover if necessary.
-
Instruction Manual - Page 99
...Troubleshooting, b 3.6 or b 3.7
- Reassemble all other parts in the intake manifold (1) must be clear, clean if necessary - Remove the carburetor carrier, b 12.8
- Always replace components with manual fuel pump, b 12.4.1
: Inspect and clean the ...arrow) in the reverse sequence.
98
MS 231, MS 231 C, MS 251, MS 251 C Inspect the intake manifold and
replace it snaps into position.
-
Instruction Manual - Page 100
...and tighten them down firmly.
- Close the tank cap. - Models with manual fuel pump, b 12.4.1
- Remove the carburetor, b 12.5
MS 231, MS 231 C, MS 251, MS 251 C
99 Clean the area around the tank vent.
- Check function by ..., also check and clean the tank vent and replace it if necessary. Reassemble all other parts in the reverse sequence.
12.10 Tank Vent 12.10.1 Testing
2310RA360 TG
1
: Push ...
Instruction Manual - Page 102
...fuel tank. Pour a small amount of fuel and results in
accordance with manual fuel pump, b 12.4.1
2310RA374 TG
MS 231, MS 231 C, MS 251, MS 251 C
101 Remove the air guide shroud, b 12.4
Models with environmental....
- Close the tank and shake the saw vigorously.
-
the fuel tank and the pickup body first.
1
- Reassemble all other parts in the reverse
fuel supply system, always check...
Instruction Manual - Page 105
...MS 231 C, MS 251, MS 251 C Insert screw and tighten it in the guide (arrow).
- Close the tank cap.
- Insert the screws and tighten them down the screw (2) firmly.
- Reassemble all other parts... spring (1) through the opening (arrow).
: Lift the tank housing (2).
-
Machines with manual fuel pump, b 12.4.1
- Check position of fuel hose and correct if necessary, b 12.11.2
- Do...
Instruction Manual - Page 108
...hose (4) onto the short nipple (5) and the carburetor connector (6).
- Reassemble all other parts in the reverse sequence.
2310RA404 TG
1
: Disconnect the fuel suction hose (1) and...and pull out the manual fuel pump (1).
-
Install the carburetor, b 12.5
12.11.4 Manual Fuel Pump
Installing
- MS 231, MS 231 C, MS 251, MS 251 C
107 Reassemble all other parts in the reverse sequence...
Instruction Manual - Page 109
...).
2310RA232 TG
: Take out the screw (1).
108
MS 231, MS 231 C, MS 251, MS 251 C Inspect the tank housing and
1
replace if necessary
2310RA414 TG
Only transfer those parts from the brake lever, b 5.4.2
: Pry the AV spring (1) out of the engine housing (2) at the same time.
3
All models
2
-
Machines with manual fuel pump, b 12.4.1
- bearing seat (2) so that...
Instruction Manual - Page 110
...2310RA058 TG
: Insert and tighten down the screw (1) firmly.
- Reassemble all other parts in the engine housing.
2310RA415 TG
: Lift the tank housing (2).
: Insert ..., through the opening (arrow). Install the handlebar, b 9.4
2
1
2310RA417 TG
Models with manual fuel pump
1
: Pass the fuel return hose (1) upwards through the opening (arrow) and ...
MS 231, MS 231 C, MS 251, MS 251 C
109
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