Troubleshooting; Maintenance - Delta ShopMaster MS450 Manual De Instrucciones

For assistance with your machine, visit our website at www.deltamachinery.com for a list of service centers or call
the DELTA Machinery help line at 1-800-223-7278 (In Canada call 1-800-463-3582).
CHANGING THE BLADE
USE ONLY CROSS-CUTTING SAW
BLADES. DO NOT USE BLADES WITH DEEP
GULLETS AS THEY CAN DEFLECT AND CONTACT
GUARD
1. Use only 12" diameter blades with 1" arbor holes
that are rated for 4000 RPM or higher.
2. DISCONNECT
FROM THE POWER SOURCE.
3. Loosen screw (A) Fig. 41, with wrench provided.
4. Rotate arbor cover (C) Fig. 42, and lower guard (D)
Fig. 43, to the rear, exposing arbor screw (E).
5. Remove arbor screw (E) Fig. 42, by turning screw
clockwise with wrench supplied), while at the same
time, pressing in on arbor lock (F) Fig. 43, to keep the
arbor from turning. Remove outside blade flange (G)
Fig. 42, and saw blade (H) Fig. 42. DO NOT
REMOVE INSIDE BLADE FLANGE.
6. Attach the new saw blade MAKING CERTAIN
TEETH OF SAW BLADE ARE POINTING DOWN AT
THE FRONT, and attach outside blade flange (G)
Fig. 42. Check to see that the flats on outside blade
flange are engaged with flats on arbor shaft.
7. Thread arbor screw (E) Fig. 42, into saw arbor by
turning screw (E) counterclockwise as far as possible
by hand. Then tighten arbor screw (E) with wrench
supplied while at the same time pressing in on arbor
lock (F) Fig. 43, to keep arbor from turning.
8. Rotate arbor cover (C) Fig. 42, and lower guard (D) to
the front and tighten screw (A) that was loosened in
STEP 3.
MAKE SURE BOTH ARBOR SCREW
AND ARBOR COVER SCREW ARE SECURELY
FASTENED BEFORE OPERATING THE SAW.
BRUSH INSPECTION AND
REPLACEMENT
DISCONNECT THE MACHINE FROM
THE POWER SOURCE.
Brush life varies, depends on the load on the motor.
Check the brushes after the first 50 hours of use of a new
machine, or after a new set of brushes has been
installed.
After the first check, examine them after about 10 hours
of use, until replacement is necessary.
The brush holders (A) Fig. 44, are located on the motor
housing opposite each other. Fig. 45, illustrates one of
the brushes removed for inspection. When the carbon on
either brush (B) is worn to 3/16" in length, or if either
spring or shunt wire (C) is burned or damaged in any way,
replace both brushes. If the brushes are found
serviceable after removing, reinstall them in the same
position.

TROUBLESHOOTING

MAINTENANCE

THE MACHINE
21
Fig. 41
C
Fig. 42
D
F
Fig. 43
A
B
Fig. 44
A
G
H
E
C
Fig. 45