DoAll C-4100NC - Trouble Shooting; Machine Will Not Start; Machine Starts, But Wont Continue Running; Saw Band Stalls During a Cut

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MAINTENANCE
REPLACING SAW GUIDE AND BACK-UP
INSERTS
These instructions can be used to replace
the saw guide and back-up inserts on both left
and right saw guide arms.
Be sure the band drive motor is not running
when replacing saw guide and back-up
inserts.
1. Loosen the insert adjustment screw on each saw
guide arm. Then: (a) Remove the left saw band
guard (if necessary) and saw band; (b) Remove
the adjustment screw being very careful not to
drop or lose the front insert when it falls from
the assembly; (c) Loosen the at head screw and
remove the rear insert.
Typical Saw Guide Assembly (Both Arms).
2. Thoroughly clean the saw guide arm and inserts
area. Then: (a) Reverse the carbide back-up insert
(if worn); (b) Replace the rubber back-up insert if
it has deteriorated (this will help prevent coolant
leakage).
3. Install the new inserts. Then: (a) Thread the adjusting
screw inward part way; (b) Place the saw band
between the inserts; (c) Tighten the adjustment
screw; (d) Replace the left saw band guard (if
removed).
ADJUST OR REPLACE SAW BAND LEAD-IN/
EXIT ROLLERS
1. To adjust and position the xed spindles/rollers: (a)
Raise the saw head until the saw band is above the
front movable vise jaw; (b) Shut the machine and
disconnect switch off; (c) Move the left saw guide
arm to the closest approach to the right saw guide
arm.
2. Insert a straightedge gage and clamp the inserts in.
Position the bearing blocks so that the xed splindle
rollers bear evenly on the straightedge gage.
3. Loosen the set screw above the roller bearing and
pull out the roller bearings. Then: (a) Remove the
screw or retaining ring holding the bearing in place;
(b) Remove old bearing and replace with new one;
(c) Reinstall the screw or retaining ring; (d) Tighten
the set screw.
Lead-In/Exit Roller Bearings.
BAND DRIVE BELT REPLACEMENT
1. Turn one (1) disconnect switch to "OFF". Then:
(a) Remove the band drive assembly cover; (b)
Remove the broken drive belt.
2. Position the new drive belt over the drive pulley
sheaves. Then: (a) Adjust the motor base plate
slack take-up.
3. Turn the disconnect switch to "ON". Then: (a)
Check the operation of the new drive belt ; (b) If the
operation is satisfactory, turn the band drive motor
off; (c) Replace the assembly cover.
HYDRAULIC SYSTEM
1. Keep the reservoir lled at all times. Capacity is 10
gallons (37.5 liters). Check the reservoir oil level
daily by referring to the sight gauge.