Maintenance - Porter Cable 3812 Manuel D'instructions

CHANGING THE BLADE
Disconnect the tool from the power source!
Use only 10" diameter saw blades rated for 4600 rpm or higher with 5/8" arbor holes.
1. Remove the table insert (A) Fig. 48, and raise the saw blade to its maximum height.
2. Remove the blade guard and spreader assembly.
NOTE: Place the blade in the 90° position to the table to remove the blade guard and spreader assembly.
3. Remove the table insert, pull on the spreader release spring (A) Fig. 49, lift the blade guard/spreader assembly
(B).
4. Use the open end wrench (B) Fig. 50 on the flats
of inside blade flange to keep the saw arbor from
rotating. Remove the arbor nut (C) with the other
wrench (D). Turn the nut (C) counter-clockwise.
Remove the outside blade flange (E) and the saw
blade (F).
5. Install the new blade with the teeth of blade pointing
down. Attach the outside blade flange (E) Fig. 50
with the arbor nut (C). Tighten the nut (C) clockwise
with the wrench (D) while holding the arbor steady
with other wrench (B).
6. Replace the table insert, blade guard, and spreader
assembly. Remove and store the two wrenches.
KEEP TOOL CLEAN
Periodically blow out all air passages with dry compressed air. Clean all plastic parts with a soft damp cloth. NEVER use
solvents to clean plastic parts. They could possibly dissolve or otherwise damage the material.
WEAR SAFETY GLASSES WHILE USING COMPRESSED AIR.
FAILURE TO START
Should your tool fail to start, check to make sure the prongs on the cord plug are making good contact with the outlet.
Also, check for blown fuses or open circuit breakers in the line.
BRUSH INSPECTION AND LUBRICATION
For your continued safety and electrical protection, brush inspection and replacement on this tool should ONLY be
performed by an AUTHORIZED PORTER-CABLE SERVICE STATION or a PORTER-CABLE SERVICE CENTER.
At approximately 100 hours of use, take or send your tool to your nearest Authorized Porter-Cable Service Station to be
thoroughly cleaned and inspected; worn parts replaced, when necessary, relubricated with fresh lubricant, if required;
reassembled with new brushes; and performance tested.
Any loss of power before the above maintenance check may indicate the need for immediate servicing of your tool.
DO NOT CONTINUE TO OPERATE TOOL UNDER THIS CONDITION. If proper operating voltage is present, return
your tool to the service station for immediate service.

MAINTENANCE

B
A
Fig. 49
20
A
D
E
C
F
Fig. 48
B
Fig. 50