Figure 7. Rail Wear - Stanley CS11 Service Manual

3. Align the oil tubes and press the chain saw adapter
assembly against the valve handle as sembly and
secure using the four 5/16-18 × 3/4 inch capscrews.
Tighten to 15 ft Ib/20 Nm.
4. Install the saw chain on the saw bar then place on
the mounting studs in-line with the bar adjustment
nut. (Observe orientation of the chain on the bar.
The cutting edge of the cutter link on the top of the
bar should travel towards the bar nose).
5. Install the chain guard, two flat washers and two 3/8-
16 hex nuts.
6. Perform CHAIN TENSION ADJUSTMENT proce-
dure.
MAINTENANCE AND ADJUSTMENTS
GENERAL MAINTENANCE TIPS
There are many simple maintenance tasks which, if
performed, can keep a chain saw operating at a high
level of efficiency. Routine maintenance will also keep
replacement costs down on the parts of the chain saw,
which occasionally wear out.
BAR GROOVE WEAR
The wear pattern of the bottoms of the chain cutters,
tie straps and drive lengths is a good indication of the
condition of the bar.
1. If the bottoms of the drive links are worn flat, the
groove is too shallow in the tailor flat section of the
bar. The groove must be ground deeper by an au-
thorized chain saw dealer or the bar re placed.
2. If the drive links are worn concave, the groove is
shallow in the bar nose. It is possible that the armor-
tip of the bar nose has worn off. The groove should
be rebuilt, reground or the bar replaced.
In summary, the groove width should not allow the chain
to wobble from side to side when moved with fingers.
Groove depth should range between 5/16 inch/8 mm to
a maximum of 7/16 inch/11 mm.
BAR RAIL WEAR
A quick check can be made to determine rail wear. Put a
straight edge against the bar and the cutting edge (Fig-
ure 7). Force the cutter sideways as far as it will go with
the straight edge. There should be 1/16 to 1/8 inch/1.5
to 3 mm gap between the straight edge and the side of
the bar. The chain should be supported squarely by the
bar rails. If not, the bar is worn and the groove is sloppy.
Authorized chain saw dealers have equipment to close
the rails.
If the chain saw is used frequently, check the bar for flat
and even rails. Rails must be flat and square with side of
bar and the bar itself must be perfectly straight. If bows
or bends are present in the bar, a dealer should attempt
to remove them.
If the bar rails are uneven (stepped), the chain is leading
off the cutter. The rails should be reground by an autho-
rized dealer.
CLEARANCE

Figure 7. Rail Wear

CHAIN LUBRICATION
Soak a new chain overnight in SAE 30 oil.
Before cutting, check to make sure that oil is being
thrown from the nose of the bar.
CHAIN TENSION
Correct chain tension is very important throughout the
life of the chain. Check chain tension often during use
(when the saw is stopped and the bar and chain are
cool). The chain should move easily around the bar
when pulled by hand. Watch ten sion and lubrication dur-
ing prolonged cutting pe riods.
AUTOMATIC OILER ADJUSTMENT
1. Observe all safety precautions.
2. The automatic oiler adjustment plug is located in the
top-forward portion of the valve handle assembly.
The oil volume can be adjusted with a 3/16 inch al-
len wrench by turning the plug coun terclockwise to
increase output and turning clock wise to decrease
output.
NOTE:
Oil output will vary proportionally to load and oper-
ating pressure. It should be adequate for most op-
erations as adjusted at the factory.
SERVICE
CS11 Service Manual ◄ 27