Saws No Longer in Production

Click the + to expand the accordion.

Tips for Saws no Longer in Production

Head Feed Control Air Bleeding Procedure for C-916

DoALL Models: C-916

Oil replenishment and/or air bleeding can be done without removing the cylinder assembly from the machine.

Repair oil leak in the system first to eliminate having to perform this again in a short period of time.

Raise the saw head enough to remove the pipe plug from the top end cap of the cylinder. Return the saw head to the down position.

1. Using an oil bottle/can with a small filler tube extended into hole approx. 1”, SLOWLY pour ISO-VG grade 46 hydraulic oil or Dextron III transmission fluid (depending on what your system originally contained) into the open pipe port until overflow occurs.
2. Replace the pipe plug and turn the head feed control metering valve wide open.
3. Raise and lover the saw head to its maximum limits several times.
4. Repeat step #1 several times in necessary to purge excel air from the cylinder.
5. With the metering valve shut off, the piston should not sag more than 1/4” (6.0 mm) when the bandwheel is let go after full head raise and full extension of the head feed control cylinder piston rod. Sag or piston rod retraction being measure at the piston rod. 

DoALL Head Feed image

Incorrect Center of Twist when Changing Bearings or Wheels on TF-1421 and TF-2021

 DoALL Models: TF-1421, TF-2021M or TF2021NC Tilt Frame Series

Issue: Machines now have cup and cone bearings in the upper and lower bandwheels. If the bearing lock nut does not have the proper torque, the center of twist will not be correct when changing wheels or bearing. 

Correction: A socket (DoALL part #: 207897) to torque the bearing lock nut is available and is a requirement to service the impacted DoALL machines. The proper torque is 17 to 18 feet/pounds which will achieve proper bearing preload and center of twist. 

Referenced from DoALL Historical Service Tip Sheet #294

Intermittent Issues Sensing Top of Material to be Cut on C-3350NC Saws

DoALL Models: C-3350NC

Issue: Various issues with Reflectors causing sensor to malfunctions

Correction: Replacement with a new style Emitter / Receiver units which eliminate Reflectors

DoALL C-350NC Reflector Tip photo

DoALL C-3350NC machines are having intermittent problems with the head clear laser assemblies not properly sensing the top of the material correctly or in some cases not at all due to:

1. Dirty reflectors, cracked reflectors that are clouding up.
2. Mounting brackets on sending unit are coming loose which causes problems with sensing beam alignment

New style replacement kits have a Emitter Unit and a Sending Unit rather than using a reflector type system. For replacement Head Clear Laser Kits, Order DoALL part #: 223733.

 Referenced from DoALL Historical Service Tip Sheet #400

Proper Adjustment of Saw Guide Adjusting Screws for C-916 and 500 Series Saws

DoALL Models: C-916A, C-916M, C916S, 500-S, 500-DS and 500-SNC

Issue: Current production of machines coming from the factory has a few different saw guide adjusting screws being used. Seems there is some confusion on the proper adjustment of these items, thus this Service bulletin to help clarify.

Correction: DoALL part # 124419 (Knurled exterior) is used on models such as C916 series and 500 series machines.

To properly adjust these screws, Fully insert sawband up to back-up bearings, Using a flat blade screwdriver, Turn the saw guide adjustment screws CW till fully tight (Do not overtighten) then back off ¼ to ½ turn.

DoALL C-916 and 500 Series Adjust Screws

Proper Adjustment of Saw Guide Adjusting Screws for C-430A, C-30NC, DC-310NC

DoALL Models: C-430A, C-30NC and DC-310NC 

Issue: Current production of machines coming from the factory has a few different saw guide adjusting screws being used. Seems there is some confusion on the proper adjustment of these items, thus this Service bulletin to help clarify.

Correction: DoALL part #217390 (Smooth exterior) is used on models such as C430A, C330NC, DC310NC series machines. To properly adjust these adjusting screws, Fully insert sawband up to back-up bearings. Using a flatblade screwdriver, Turn the saw guide adjusting screw CW till the housing fully bottoms out on the sawguide arm. This is the preset placement for this particular style, DO NOT back off CCW.

DoALL Adjusting Screw C-430 saws

Proper Adjustment of Saw Guide Adjusting Screws for C-4100 and 800 Series

DoALL Models: C-4100 series and 800 Series

Issue: Current production of machines coming from the factory has a few different saw guide adjusting screws being used. Seems there is some confusion on the proper adjustment of these items, thus this Service bulletin to help clarify.

Correction: DoALL part #: 318170 (Long Knurled exterior) is used on models C4100 and 800 series machines. To properly adjust these adjusting screws, Fully insert sawband up to back-up carbide. Using a flatblade screwdriver, Turn the saw guide adjusting screw CW till the housing fully bottoms out on the sawguide arm. This is the preset placement for this particular style, DO NOT back off CCW.

DoALL Adjust Screw for 800s

Drive Pinion Gear Shifting Under Load on TF-2020

DoALL Models: TF-2020A and TF-2020M

Issue: The drive pinion gear is shifting under load.

Correction: Add a spacer (DoALL part #: 109522) between the shoulder on motor shaft and pinion gear to fill the space. The helical gear causes pinion to move in toward motor under load. Install the spacer behind gear as shown. 

DoALL TF-2020 Pinion Gear Tip

Referenced from DoALL Historical Service Tip Sheet #168