OCHIAI DP-10 Owner's Manual page 23

Gear Case
Chain maintenance
WARNING
Never try to start engine without side case securely
fastened.
A
A. Guide Plate
NOTE
○
When assembling brand new unit, take off and discard the
cardboard (A) between gear case and side case.
Installation of bar and chain
A
B
A. Side Cover
B. Nut
C
A
B
D
E
A. Guide Bar
B. Chain Bar Bolt
C. Sprocket
D. Chain Tensioner
E. Hole
NOTE
○
Slightly move the bar back and forth and make sure the chain
tension boss (D) fits into the hole (E) in the bar properly.
Check gear case for grease level
about every 50 hours of operation
by removing the grease filler plug
on the side of angle transmission.
1. Remove chain bar clamp nut
(B).
2. Remove the side case (A).
3. Install, the chain bar (A)
onto the bolt (B), then push
it toward the sprocket (C) as
far as it will go. Make sure
that the boss of chain tension
adjusting bolt (D) fits into the
hole of the bar (E).
B
A
C
A. Chain
B. Side Cover
C. Nut
B
A
0.5-1mm
A. Chain
B. Chain Tensioner
CAUTION
Proper tension is extremely important!
8. Raise the bar end and securely tighten the chain bar clamp
nut with the box wrench.
9. A new chain will stretch so adjust the chain after a few cuts
and watch chain tension carefully for the first half hour of
cutting.
NOTE
○
Check the chain tension frequently for optimum performance
and durability.
CAUTION
When the chain is excessively tightened the bar and
chain will be damaged rapidly. Conversely, when the
chain is excessively loosened, it may get out of the
groove in the bar.
Always wear gloves when touching the chain.
WARNING
During operation, hold the unit firmly with both hands.
A single hand operation may cause serious injury.
4. Confirm the direction of saw
chain (A) is correct as in the
figure, and align the chain on
the sprocket.
5. Guide the chain drive links
into the bar groove all around
the bar.
6. Install the side case (B) onto
the guide bar clamp bolt.
Then fix the clamp nut (C)
temporarily.
7. Raise the bar end, and tighten
the chain (A) by turning the
tension adjustment bolt (B)
clockwise. To check proper
tension, lightly lift up the
center of chain and there
should be about 0.5-l.0 mm
clearance between bar and
edge of drive link.
English
21