Stanley CO25 Service Manual page 24

19. Slowly slide the gear housing over the gears until it con-
tacts the bearing housing.
20. Turn the motor shaft manually to check for free rotation.
If it does not turn easily, separate the housings and fi nd the
cause of the binding.
21. Install eight capscrews. Tighten fi nger tight.
22. Recheck the shaft rotation. When the shaft rotates eas-
ily, tighten the capscrews.
23. Install the motor in the motor housing by making sure
the oil tubes are removed from the motor housing.
24. Insert the motor into the motor housing and secure with
two fl at-head machine screws.
25. When new parts are installed, it may be necessary to
"break-in" the motor. After the saw has been reassembled
without the guard, the motor may be broken in as follows:
Connect the cutoff saw to a hydraulic power supply. Start
the saw and check for smooth operation.
If break-in is required, rotate the shaft with a wrench, with
and against pressure until the motor starts and runs freely.
The ON/OFF valve must be held in the ON position.
THRUST COLLAR INSTALLATION
1. Insert the key into the groove on the motor shaft. Use a
small amount of grease to hold it in place.
2. Push the thrust collar onto the motor shaft, aligning the
keyway with the key in the shaft.
3. Tighten the setscrew using a hex wrench.
OIL TUBE AND VALVE HANDLE ASSEMBLY
If the oil tubes and/or valve handle assembly were re-
moved, lubricate and install a new O-ring on each end of
the two oil tubes.
2. Carefully insert the oil tubes in the motor housing until
they bottom out in the motor. Do not damage the sealing
surfaces on the tubes or motor housing.
3. Install the valve handle assembly on the motor housing
by aligning the holes in the valve handle assembly with
those in the motor housing.
SERVICE
4. Carefully slide the valve handle assembly over the oil
tubes until it meets the motor housing and secure in place
with four hex-socket capscrews.
ON/OFF VALVE INSTALLATION
If the valve in the valve handle assembly was removed,
lubricate and install new O-rings on the plug and valve cap.
1. Thread the valve cap assembly into the top of the valve
handle assembly.
2. Insert the poppet and spring in the bottom of the valve
spool. Insert the valve spool through the bottom of the
valve handle. Secure in place with the threaded plug.
TRIGGER INSTALLATION
If the trigger was removed from the valve handle, place the
trigger and spacer between the upper set of holes in the
valve handle.
1. Drive a 1/4-inch (6 mm) roll pin through the holes using a
punch and hammer.
SAFETY CATCH INSTALLATION
If the safety catch was removed from the valve handle,
place the torsion spring on the boss of the safety catch with
the spring tab on top of, and facing, the back of the catch.
1. Place the safety catch in the valve handle and align the
holes using a 3/16-inch (4 mm) punch.
2. Drive a 3/16-inch (4.8 mm) roll pin through the holes us-
ing a punch and hammer.
3. Push down on the spring tab until it snaps in place under
the safety catch.
WHEEL GUARD
If the wheel guard was removed, install a washer on the
guard-clamp carriage bolt and align the bolt with the cor-
responding hole in the motor housing.
1. Slide the center hole in the guard onto the motor pilot
diameter and secure with the beveled retaining ring. Make
sure the beveled edge of the retaining ring is facing out-
ward.
2. Place the remaining washer and the swingover nut on
the carriage bolt and tighten only until secure.
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