Stihl MS 251 Instruction Manual - Page 44

The inner pin, must point towards

Get Stihl MS 251 PDF manuals and user guides View all Stihl MS 251 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 44 highlights

1 5904RA091 TG 5904RA089 TG 2710RA124 TG 2 1 : Position the piston as shown so that the arrow (arrow) points to the rear and the straight crankshaft stub (1) is on the right - the arrow must point in the direction of the exhaust port. : Remove the sleeve (1) 5910 893 1707 from the installing tool (2) 5910 890 2210. : Press the installing tool downwards into the sleeve until the magnet butts against the end of the guide slot. Use a suitable base. - Place the piston on the connecting rod. 1 165RA153 TG 21 216RA178 TG 2 : Push the assembly drift (1) 1110 893 4700 into the piston, at the side with the snap ring, and through the small end (needle cage) - the piston is aligned. 2310RA426 TG : Attach the snap ring (1) to the magnet (2) so that the snap ring gap is on the flat side of the tool's shank (arrow). 21 : Remove the sleeve and slip it onto the other end of the shank - the inner pin must point towards the flat face. - Lubricate the piston pin (2) with oil. 5904RA090 TG 2710RA419 TG : Fit the piston pin (2) on the assembly drift (1) and slide it into the piston. : Push the large slotted diameter of the sleeve over the magnet and snap ring. The inner pin (1) must point towards the flat face of the tool's shank (2). 1 Fit the snap ring (1) so that its gap (arrow) is on the piston's vertical axis (it must point up). MS 231, MS 231 C, MS 251, MS 251 C 43

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
43
MS 231, MS 231 C, MS 251, MS 251 C
:
Position the piston as shown so
that the arrow (arrow) points to
the rear and the straight
crankshaft stub (1) is on the right
– the arrow must point in the
direction of the exhaust port.
–
Place the piston on the
connecting rod.
:
Push the assembly drift (1)
1110 893 4700 into the piston, at
the side with the snap ring, and
through the small end (needle
cage) – the piston is aligned.
–
Lubricate the piston pin (2) with
oil.
:
Fit the piston pin (2) on the
assembly drift (1) and slide it into
the piston.
2710RA124 TG
1
2310RA426 TG
1
2
:
Remove the sleeve (1)
5910
893
1707 from the installing
tool (2) 5910 890 2210.
:
Attach the snap ring (1) to the
magnet (2) so that the snap ring
gap is on the flat side of the tool's
shank (arrow).
:
Push the large slotted diameter of
the sleeve over the magnet and
snap ring.
The inner pin
(1) must point towards
the flat face of the
tool's shank (2).
5904RA089 TG
2
1
165RA153 TG
1
2
5904RA090 TG
2
1
:
Press the installing tool
downwards into the sleeve until
the magnet butts against the end
of the guide slot.
Use a suitable base.
:
Remove the sleeve and slip it
onto the other end of the shank –
the inner pin must point towards
the flat face.
Fit the snap ring (1) so that its
gap (arrow) is on the piston's
vertical axis (it must point up).
5904RA091 TG
216RA178 TG
2710RA419 TG
1