STARTER SYSTEM
CS-2510TES
250Ts, 250TCs
7
2 STARTER SYSTEM (ES-start / S-start)
(A) Starter case
(B) Fan cover
(C) Rewind spring
(D) Rewind spring case
(E) Rope reel
(F) Power spring
(G) Pawl catcher
(H) Screw
(J) Starter rope
(K) Starter grip
Working principle
1. When starter grip (K) is pulled, rope reel (E)
rotates.
2. The rotation force of rope reel (E) is transmitted
to pawl catcher (G) by power spring (F).
3. Pawl catcher (G) engages with starter pawls on
fl ywheel to turn crankshaft.
4. The load from compression pressure in cylinder
will keep crankshaft from rotating as power spring
(F) is twisted and accumulates energy.
5. As starter grip (K) is pulled further, more energy
is stored in power spring (F) until accumulated
energy is enough to overcome compression
pressure in cylinder.
6. When accumulated energy in power spring (F)
overcomes the load from compression pressure in
cylinder, crankshaft is rotated.
7. Power spring (F) absorbs compression resistance
of cylinder and snatch back of engine during starting
action.
8. When starter rope (J) is released, rope reel (E)
is returned together with power spring (F) and pawl
catcher (G) by rewind spring tension.
9. After engine starts, starter pawls pivot outward by
centrifugal force and disengage from pawl catcher
(G).
Construction
1. Rewind spring (C) and rewind spring case (D)
are installed inside starter case (A).
2. Rope reel (E) with starter rope (J) is installed
on rewind spring case assembly.
3. Hook located on the backside of rope reel
engages with end (c) of rewind spring (C).
4. Power spring (F) is installed on rope reel (E).
5. Hook(f1) of power spring (F) engages with
hook (e) of rope reel (E) and top end hook (f2) of
power spring (F) engages with pawl catcher (G).
(B)
(C)
(D)
(E)
(G)
(H)
(A)
(K)
(J)
(c)
(f2)
(F)
(e)
(f1)
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