DoAll TF-2025M, Инструкция по эксплуатации

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22
MAINTENANCE
REPLACING SAW GUIDE AND BACK-UP
INSERTS
These nstructons can be used to replace
saw gude nserts and back-up nserts on both
upper and lower saw gudes.
The band drve motor must NOT be runnng
when replacng saw gudes and back-up
nserts.
1. Loosen the insert adjustment screw on each saw
guide. Then: (a) Remove the saw band; (b) Remove
the adjustment screw beng very careful not to
drop or lose the front nsert when t falls from
the assembly; (c) Loosen the flat head screw and
remove the rear insert.
Typical Saw Guide Assembly
.
2. Thoroughly clean the saw guide 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)
(c) Check the condition of the belleville washers on
the adjustment screws, replace if flattened.
3. Install the new inserts. Then: (a) Thread the adjusting
screw inward part way; (b) Reinstall the saw band
between the inserts; (c) Tighten the adjustment
screw; (d) Back off the adjustment screw 1/4 turn.
HYDRAULIC SYSTEM
1. Keep the reservoir filled at all times. Capacity is 20
gallons (75.7 liters). Check the reservoir oil level
daily by referring to the sight gauge.
2. Drain, clean, refill the reservoir and change the oil
filter after the first month of operation; every six (6)
months thereafter. Clean the suction strainer and
filler opening screen when necessary. Automatic
transmission fluid is the recommended product.
3. Before changing the hydraulic fluid: (a) Retract
the saw head completely; (b) Push the Hydraulc
Stop button; (c) Remove the reservoir drain plug;
(d) Allow the reservoir to drain completely.
System Pressure
1. Hydraulic system pressure is correctly set at the
factory and should not require adjustment for
a considerable period of time. Correct system
pressure is 1000 ±25 psi (68.9 ±1.7 bar.)
2. Pressure is adjusted by turning the screw extending
outward from the hydraulic reservoir. Consult
a DoALL service representative if assistance is
needed.
Pump Repar & Replacement
1. DO NOT attempt to repar the hydraulc pump.
Return it to the factory for repair or replacement. Be
sure to specify the correct pump model and serial
numbers when returning the unit.
2. Following a new pump installation: (a) Jog the
Hydraulc Start and Hydraulc Stop buttons
several times; on for two (2) seconds, off for three
(3) seconds until the pump is primed; (b) Check
for proper pump rotation while jogging; (c) Review
wiring connections if the pump rotates in the wrong
direction.
After the pump has been prmed, run t
for several mnutes whle operatng the
machne’s controls to purge entrapped ar
from the pump and system. Check for ol
leaks whle the system s beng operated.
Seals & Cups
1. Seals and cups used in DoALL hydraulic systems
are compatible ONLY with hydraulic oils having an
aniline point between 215° and 230° F. (102° and
111° C.).
2. If hydraulic oil having an aniline point not falling
within the above range is used, the seals may either
swell or shrink and harden. This causes machine
malfunction and leakage.