Service - Stanley CO25 Service Manual

GENERAL SERVICE
REQUIREMENTS
Do not disassemble the tool unless an internal problem
has been identifi ed. The tool may not be the cause of the
malfunction. Refer to the Troubleshooting Section of this
manual.
Disassemble the tool only to the extent necessary to re-
place a defective part.
Do not put the tool back in service until the source of the
problem has been identifi ed and repaired. If not corrected,
the original problem may cause excessive wear or tool
failure.
NOTE:
When servicing the tool, keep your work surface clean.
Do not allow dirt or grit to contaminate internal parts of
the tool.
TOOLS, PARTS AND MATERIALS
• basic tools such as screwdrivers and hammer
• combination and hex wrenches
• punches for driving out roll pins
• seal kit
• clean grease or O-ring lubricant
• degreasing solvent
• clean, dry lint-free cloths
HYDRAULIC SYSTEM CONNECTIONS
If the hydraulic hoses are connected to the tool:
• Turn the hydraulic system control valve OFF.
• Disconnect fi rst the hydraulic input (supply) hose, then the
output (return) hose.
• Insert plugs in each hose to prevent contamination of the
hydraulic circuit and interior of the valve handle assembly.
CLEANING
Clean any dirt, debris, or grease from the tool before
removing any parts. Keep the work surface clean to avoid
contaminating the interior of the tool.
Before reassembly, remove and discard any exposed
O-rings. Do not install any parts in the tool until they have
been cleaned.

SERVICE

1. Clean all parts with cleaning solvent, making sure the area
is well ventilated.
2. Blow the parts dry with compressed air or wipe with clean,
lint-free cloths.
PERIODIC MAINTENANCE
For maximum performance and reliability of the tool, peri-
odically check the following components.
THRUST COLLAR AND INSIDE/OUTSIDE
COLLAR INSPECTION
Periodically inspect the thrust collar for damage when you
remove the cut-off wheel (refer to Cutoff Wheel Replace-
ment).
1. Remove the key and thrust collar from the motor shaft.
2. Check the thrust collar for burrs. Remove burrs as re-
quired.
3. Check the threads on the clamping setscrew.
4. Inspect the collar bores and fl anges.
5. Check for burrs. Remove burrs as required.
6. Check that the bearing surfaces are fl at and run true
when mounted on the motor shaft and thrust collar.
DRIVE-SHAFT SPEED CHECK
Check the speed of the motor output shaft at least every
100 hours of operation. The test should be performed only
by a trained, experienced technician.
• Maintain a record of the speed checks.
• The maximum rated speed of the CO25 Hydraulic Cutoff
Saw is 4500 rpm.
• The rated speed of the cutting wheel must be equal to,
or greater than that of the tool to ensure the integrity of the
wheel at maximum tool speed.
• Use the hydraulic power supply normally used with the
cutoff saw when conducting this test.
• Excessive speed may be caused by excessive hydraulic
fl uid fl ow to the tool.
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