Remington BPS188A - Manual (Page 17)

17
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Figure 34 - Depth Gauge Tool On
Chain
Figure 35 - Round Off Front Corner Of
Depth Gauge
Front
Corner
.025"
Flat File
Depth Gauge
Tool
Depth Gauge
Continued
CLEANING AND MAINTENANCE
WARNING: Remove battery
from chain saw before adjusting
saw chain tension. Severe injury
or death could occur from body
contact with moving chain.
REPLACING SAW CHAIN
WARNING: Cutting edges on
chain are sharp. Use protective
gloves when handling chain.
IMPORTANT : Do not clamp chain-
saw in vise to replace saw chain or
guide bar.
Replace chain when cutters are too worn
to sharpen or when chain breaks. Only use
replacement chain noted in this manual.
Always include new drive sprocket when
replacing chain. This will maintain proper
driving of chain. Note: For proper chain and
drive sprocket, see Parts List.
Refer to Figure 36 while completing the
following steps.
1. Loosen and remove guide bar nuts.
2. Remove sprocket cover.
3. Remove saw chain.
4. Place new chain around drive sprocket,
along top groove of guide bar, and around
guide bar nose. Note: Make sure cutting
edges of chain are facing in right direction.
Position chain so cutting edges on top of
guide bar face guide bar nose (see Figure
37 and indicator on side cover of saw).
5. Before placing sprocket cover onto guide
bar bolts, verify that the adjusting nib is
in the adjusting hole on the guide bar.
6. Place sprocket cover onto guide bar
bolts.
7. Thread guide bar nuts onto guide bar bolts.
IMPORTANT: Finger tighten only.
8. Adjust chain tension. Follow steps under
Saw Chain Tension, page 12).
9. Securely tighten guide bar nuts with
wrench.
CAUTION: Do not place chain
on saw backwards. If chain is back-
wards, saw will vibrate badly and
will not cut.
GuideBar Bolts
Adjusting Nib
Saw Chain
Sprocket
Guide Bar
Sprocket Cover
Guide Bar Nuts
Figure 36- Guide Bar and Saw Chain
Replacement
Figure 37 - Correct Installation of Saw
Chain
Cutting Edges
Adjusting
Hole
Filing Cutter Depth Gauges
The cutter depth gauge clearance is reduced as
cutters are sharpened. After every second or
third sharpening, reset cutter depth gauges.
1. Place depth gauge tool (.025") fi rmly
across top of two cutters. Make sure
depth gauge enters slot in depth gauge
tool (see Figure 34).
2. Use medium fl at fi le. File depth gauge
level with depth gauge tool.
3. Remove depth gauge tool. With fl at fi le,
round off front corner of cutter depth
gauge (see Figure 35).
After several hand fi lings, have authorized
service center or sharpening service machine
sharpen chain. This will insure even fi ling.