W. F. Wells Series I Control Console Other

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NORTH ON U.S. 131, THREE RIVERS, MICHIGAN 49093 - PHONE [phone]

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SERIES I COiTBOL COiSOLE

Operating, Maintenance, Adjustment and Pasts Manual

AND SONS, INC.

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Type 289000 from Midyear 1174 to present

INDEX

1. OPERATING INSTRUCTIONS
A. Electrical controls
B. Hydraulic controls
C. Preventive Maintenance

2. CUTTING HEAD RETURN LIMIT SWITCH ADJUSTMENT
A. When

B. Proper adjustment checkout ....................................................

C. Limit Switch Adjustment

3. CUTTING HEAD RETURN COLLAR AD JUSTMENT

4. SPARE PARTS FOR MINIMUM DOWNTIME

5. PARTS LIST

adjustment is required

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PAGE

2
2
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3
3
3
3

4

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6

1. OPERATING INSTRUCTIONS
A. ELECTRICAL CONTROLS

Al. Standard control consoles are equipped with
one start stop control for the saw blade drive. In
addition, the machines are wired so the saw blade
will turn off when the head returns. The cutting
section of the saw blade should travel towards the

driving wheel. If it travels in the opposite direction,
reverse the drive motor rotation.

A2. If a saw blade jams in the work and it is desired
to keep the blade
keep the saw blade start button depressed.

A3. Machines equipped with a BF-14 or BF-20
barfeed have a selector control that turns the
barfeed on or off, and when on, will keep the saw
blade from stopping when the head returns.

A4. Machines that are equipped with hydraulic
powered accessories, such as hydraulic band

tension, hydraulic vise or hydraulic hold downs,
have an additional set of
for the hydraulic pump control.

A5. If other accessories are supplied with the
machine, an insert sheet will supply operational
data.

A6. A switch control rod with a mechanical con
necting linkage to the cutting head is mounted on
the side of the control console (Fig. 10). There are

two collars with thumb screws on this rod. The
upper thumb screw collar is set for the
return stop

is set for the desired head return starting point.
If it is

desired for the head to return and contact the

upper stop collar and hold that position, open the
automatic closing valve (Fig. 1) rather than the
manual closing valve, and the machine will

automatically rise and hold the desired position.
If the hydraulic system does

seconds when starting the machine for the first
time, stop the pump and reverse the motor
direction. Also be sure the hydraulic tank is filled

with Shell Oil Tellus 27, Mobile D.T.E.-24 or
equivalent grade.

B. HYDRAULIC CONTROLS

Bl. Two valves are supplied on the standard
console, an automatic closing valve and a manually
closed valve.

B2. With the automatic closing valve (Fig. I),
adjust the desired cutting head rate of descent by

unlocking the wing nut and turning the large collar
step closer to the valve handle for slower descent.
Rotate the collar step away from the handle for

faster descent.

When properly adjusted, lock with the wing nut
and each cut can be started at the same rate by
lifting the handle up until it contacts the stop.
After the work piece is cut off, the cutting

return and the
head in the raised position.

running

while returning the head,

start

height and

valve

the lower thumb screw collar

not

will close, holding the cutting

stop push buttons

desired head

respond within six

head

will

B3. The manually closed valve is used for cuts that
require closer control, such as cutting into a work
piece to a particular point, and for operation with
the barfeed where a continuous cycle is desired.
When this valve is opened the cutting head will

continue to cycle up and down until the valve is
closed.



B4. Other valves may be supplied with accessories
such as hydraulic blade tension or hydraulic vise.
These are marked for appropriate operation.

C. PREVENTIVE MAINTENANCE
Cl.

The cutting head return limit switch should be
checked for proper overtravel. After the head has
returned, the control rod should be free to raise up

another 1/16 inch or more (Fig. 7). If not, adjust as
outlined later in Section 3.

C2. If any electrical fuses blow, replace them with
the proper

If larger rated fuses are used they may cause other
components to fail. If fuses continue to blow, check
for faulty components and contact the factory.

C3. Motor starter running overload heater
elements occasionally drop out for no apparent
reason. If this recurs, measure the motor current
and compare it to the motor rating and overload
heater element selection chart. If it is not the
proper size, replace it. If
for causes of high motor loads such as low oil level

in the hydraulic system, low oil level in the blade
drive gear box, machine filled with packed chips,
etc.

C4. Type 010560 automatic closing valves (Fig. 1)

were used from the first of 1974 and are still
currently in production. Should the valve stem
leak, tighten the packing by unscrewing the valve
handle assembly from the top of the valve. This will
expose the packing nut. Tighten this nut until the
oil leak stops, but do not overtighten. If the

packing is too tight the valve will not close
automatically when the cutting head returns, nor
will it open when the valve handle is raised.

2

size as shown on the electrical diagram.

FIG. 1

it

is

the proper size, check

1

C5. If the automatic valve allows the cutting head
to

leak down when closed, it will probably have dirt
embedded in the nylon valve seat. The nylon valve
face can sometimes be re-machined with a very
sharp tool in a lathe to remove this dirt. However,
remove only a very slight amount. It is preferable
to replace it with a new valve seat.

2. CUTTING HEAD RETURN LIMIT
SWITCH ADJUSTMENT

A. Adjustment is required if:
Al. The switch rod or connecting linkage springs or

bends when the cutting head reaches the returned
position. When the head has returned the con
necting linkage should be loose. It should not be
under tension.

A2. The limit switch head breaks internally or fails
to operate. This is normally caused by a wrong
overtravel adjustment, which in turn places too

much force on the switch.

A3. The switch rod stop collars are stopping the
cutting head at the wrong places. This will occur

when the connecting linkage to the cutting head

has been bent or knocked out of shape.

A4. The connecting linkage must be free and loose

around the switch rod.

B. PROPER ADJUSTMENT CHECKOUT

Bl. Position the cutting head so the mechanical

connecting linkage to the switch rod does not in-

terfer with the rod travel in either direction, and
turn off the electrical supply to the machine.

B2. Slowly rotate the switch arm clockwise until

the switch clicks. Just beyond this point the limit
switch arm
rod overtravel (Fig. 4). This protects the limit
switch from overtravel and breakage in this
direction. Now return the electrical supply to the
machine.

B3. Return the cutting head and allow it to stop
itself by raising up the switch rod. After the head
has stopped, the switch rod should still have 1/16

inch or more upward overtravel beyond the con

necting linkage before the bottom stop collar
contacts the

If the switch rod upper travel stops before the
bottom collar is against the machine base (Fig. 5),

the limit switch is stopping the switch rod. In this
condition, any overtravel from the cutting head

could break the limit switch. Readjust im

mediately.

When properly

and washer will stop the switch rod with necessary

overtravel required by the cutting head, but will

stop the switch

movement of the limit switch is reached. This

means the switch rod nut is absorbing the shock

load caused by switching, and not the limit switch

itself.

should contact the stop bracket to limit

machine base, as shown in Fig. 7.

adjusted, the bottom switch rod nut

rod movement

before the maximum

B4. Check to
free on the switch rod, and will not bind or grab as
the cutting head is raised or lowered. This is a
common problem, as the rods are hit and bent
easily.

be sure that

the

connecting linkage is

C. LIMIT SWITCH ADJUSTMENT
STEP 1. Turn off the electrical power to the

machine. Loosen the hex bolt and set screw or hex
nut on the switch arm as shown until the switch
arm is loose on the switch shaft and switch rod
(Fig. 2).



STEP

2. Tighten the upper
each other as shown in Fig. 3 to be sure these two
nuts are not loose.

and lower nuts against





FIG. 3

STEP 3. Place a screwdriver into the switch shaft
and rotate it in both directions. Confirm that the
switch is operating properly by a definite snapping
feel and an audible click in each direction. The
switch overtravel limit can be felt by a definite stop
in rotation in each direction.

3

Rotate the switch arm clockwise until it is 1/16 inch

above

the overtravel stop bracket (Fig. 4). Hold the

arm in this position. Rotate the switch shaft clock
wise with the screwdriver until it just clicks.
Holding the parts in this position, tighten the hex
bolt to secure the arm to the switch shaft.



FIG. 6

OVERTRAVEL STOP BRACKET)

k.

FIG. 4

To check the adjustment, rotate the switch arm
over and back until it just clicks. At this point the
arm should have 1/16 inch clearance as shown in
Fig. 4. If necessary, readjust as outlined above.

STEP 4. Raise the switch rod until the lower stop

nut and washer is up against the machine base
firmly as shown in Fig. 5, then hold them in this
position.

Lower and raise the switch rod several times to be
sure the switch clicks. Check the bottom nut on the
switch rod to be sure it stops the rod before the

switch arm contacts the overtravel stop bracket.
When the unit is properly adjusted the

the switch rod will hold any accidental overtravel
from being placed on the limit switch head.

STEP 5. Check the new adjustment by raising the
cutting head and allowing it to stop itself. At this
point, lift the
space (approximately 1/16 inch or more) should be
visible as shown in Fig. 7. If not, recheck all the

previous adjustments.

switch rod up and a small overtravel

lower

nut on

FIG. 5

Rotate the switch arm counterclockwise until the
switch arm counterbalance weight is 1/16 inch
above the overtravel stop bracket (while doing this
the switch should click and still turn some more).

Tighten the set screw or hex nut onto the switch
rod as shown in Fig. 6.

FIG. 7

3. CUTTING HEAD RETURN COLLAR
ADJUSTMENTS

STEP 1. Turn off the electrical power to the
machine, loosen the start return collars as shown in
Fig. 8, and lower the cutting head completely down.

4

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When properly adjusted, the cutting head should
start

:

to return just before it comes to rest on the

saw bed.

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STEP 2. Rotate the limit switch arm clockwise
until it just clicks and hold it stationary at this
point. Raise the start return collar with the
thumbscrew up against the cutting
mechanical connecting linkage and lock (Fig. 9).

✓

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FIG. 8

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head

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STEP 3. Raise the set screw “
collar up to the thumbscrew collar and lock.

start head return

3 HEAD RETURN

■ B

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” COLLAR

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STEP 4. Loosen the

head return" collar (Fig. 10) and position it above
the lower "start head return
inches shown below:

W-9 - 18
F-15 - 19

Measure from the top
of the lower collar. Never adjust to more than is

shown, as this will allow the cutting head to raise
higher, creating a pinch point between the saw
guide beam and the saw column overhead truss
Therefore, this set screw' upper "stop head return"
collar establishes the maximum height of the head

”

return. Anything less can be set by adjusting the

thumbscrew “

u

”

”

B-25 - 25
G-30 - 30

stop head return

THUMB SCREW "START

■M

|HEAD RETURN"

?

rjSET SCREW COLLAR

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FIG. 10

set

screw in the upper "stop

” collar the number of

”

”

of the upper

collar to

” collar.

COLLAR

the top

bar.

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4. SPARE PARTS FOR MINIMUM DOWNTIME
Quantity

1

1

Additional parts when equipped with barfeed BF-14 or BF-20

1

Part No.
010253

921519

911918

Description

Control valve
packing

Limit switch
head

Solenoid valve

coil

5

Mfgr.

and Identification

Micro 9PA47

Double A series QF or
QG-005. For other manu
facturers, give complete
nameplate data.



5. PARTS LIST

010560

916018
921509

289680
289690

102090

CONTROL CONSOLE ASSEMBLY

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NOTE D

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NOTE A

NOTE B

900095"
289620
NOTE C
440130 —

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ce

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CONTROL CONSOLE ASSEMBLY

010560

289620
289680

289690
440130
900095
916018
921509

102090

NOTE A

NOTE B
NOTE C
NOTE D

AUTOMATIC VALVE ASSEMBLY

HEIGHT SCALE

ROD
SWITCH ARM
PIN
SPACER
STOP COLLAR
BALL HANDLE
LIMIT SWITCH

ROD-
289651, F—15
289652, W—9 AND J—24
289653, B—25

289654, G—30

1 4-20 x 1 2" THUMB SCREW
1 4—20 HEX NUT AND WASHER

5 8-18 HEX NUT

7

AUTOMATIC CLOSING VALVE ASSEMBLY 010560

900009
010562

010249
010252

010253
010533
010534
010535
010562
010567
010568

900009
900156

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010567
010568
010252
010249

PORT 1

PORT 2

O'

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STOP
NUT
PACKING

CAP

PISTON

VALVE BODY

HANDLE

STEM

CAP
3/8" DIA. x 1-1/4" DOWEL PIN

1/2" DIA. STEEL BALL

010253"
010534-
NOTE A
900156 -

907022 —

010535
PORT 3

PORT 4

3

NOTE B

010533
904123
907028

-906885

904123

O—RING

906885

RETAINING RING

907022

SPRING

907028

NOTE A 3/8" S.A.E. WASHER
NOTE B 1/4—20 x 1/2" THUMB SCREW
PORT 1 PRESSURE FROM PUMP
PORT 2 TO MANUALLY CLOSED VALVE
PORT 3 TO METERING VALVE AND

PORT 4 TO CUTTING HEAD LIFT CYLINDERS

SPRING

FROM MANUALLY CLOSED VALVE

W. F. WELLS & SONS, INC., NORTH ON U.S. 131, THREE RIVERS, MICHIGAN 49093

Copyright 1974

8

Phone [phone]