11
follow inspection, adjustment, lubrication and
maintenance outlined here.
A. Lubrication.
The lubrication chart in the back of this
manual depends on shop conditions and ma-
chine use.
1. Fluid levels and filters.
Routinely check fluid levels and filters. Lock
or tag out the electric disconnect switch.
a) Hydraulic fluid.
Check the fluid level with the saw head low-
ered and the machine turned off. Fluid show-
ing in the screen, ½" to 1" from the top of the
top is proper level. Bring the fluid level up to
the this level with Mobil DTE-24.
Low fluid level allows air to enter the pump,
causing dieseling, cavitation and a ruined
pump.
Dirty hydraulic fluid is usually because the
reservoir filler cap is not in place.
Dirty hydraulic fluid causes valves to stick
and orifices to plug. Machine adjustments to
improve poor sawing will constantly change.
If hydraulic fluid inspection reveals dirt, or is
milky-white with water or coolant, contamina-
tion is in all lines and cylinders. Break prima-
ry connections and blow out the lines. Drain
and rinse the reservoir twice with fuel oil.
Swab out the reservoir and fill it with clean
fluid. Change the hydraulic fluid filter car-
tridge.
Activate all cycles several minutes to flush
out the machine.
Repeat the process five times, or until there
is no dirt or discoloration in the hydraulic
fluid.
Change the filter cartridge again.
Install a chain and lock on the reservoir filler
neck and cap.
Hydraulic fluid temperature over 130° is a
malfunction.
Check the fluid level.
Check the fluid for proper viscosity.
Check that all machine cycles function
through completion, not partly blocked.
b) Hydraulic fluid filter.
Original equipment hydraulic fluid filter
cartridge (part number 911231) furnished
with this machine is a spin-on type with a
classification of three micron, absolute,
filtering .003 contamination out of the
system.
Replacing the filter cartridge with a rating
greater than three micron, ten micron for
instance is a popular filter, will down-
grade the system and life expectancy of
the machine.
Change the filter cartridge once a year
(2,000 hours) for a trouble-free operation.
Locate the filter cartridge mounted inside the
lower front panel of the operators console.
Unscrew and discard the contaminated filter
and gasket. Check the gasket on the new
filter cartridge for damage. Wipe a thin film
of fresh fluid on threads and gasket of the
new cartridge and turn it on the filter system,
hand tight only. Make certain the cartridge
bottoms out on the filter system head.
c) Gear case oil.
See the contents page for the drive gear
reducer bulletin.
NOTE: Drain the blade drive reducer case
after the first 80 hour run-in period.
Flush the case with a light flushing oil. Filter
the old oil, or replace it with fresh oil.
Each 2,000 hours of operation drain the
reducer cases, flush, and fill with fresh oil.
Check gear case fluid levels at the sight
glass on the front of the case or pipe plug at
the side of the gear case, or oil standing in
the filler elbow. With the machine shut down
oil must be visible in the filler elbow, or seep
out the loosened pipe plug.
Add fresh oil as necessary to bring the level
up.
W. F. Wells and Cone Drive-Textron use and
recommend using only Mobil SHC-634
