DoAll DC-330NC, Инструкция по эксплуатации

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26
MAINTENANCE
SAW GUIDE AND BACK-UP INSERTS
These nstructons can be used to replace
the saw gude and back-up nserts on both left
and rght saw gude arms.
The band drve motor must not be runnng when
replacng saw gude and back-up nserts.
1. Loosen the insert adjustment screw on each saw
guide arm. Then: (a) Remove the both saw band
guards, relax the band tension and remove the
saw band from the saw guide arms; (b) Remove
the adjustment screw -- be 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 (Both Arms)
.
2. Thoroughly clean the saw guide arm and inserts
area. Then reverse the carbide back-up insert or
replace it if both sides are worn.
3. Install the new inserts; fixed insert first. 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 saw band
guards.
BAND DRIVE BELT REPLACEMENT
1. Turn the machine and disconnect switch off. Then:
(a) Remove the band drive cover; (b) Loosen the
adjustment nut and then turn the screw counter-
clockwse to lower the motor mounting bracket
until the belt tension is released; (c) Remove the
old broken or worn drive belt.
Replacing the Drive Belt.
2. Position the new drive belt around the motor and
spindle pulley until it is seated; (a) Turn the adjust-
ment screw clockwse (this moves the motor mount-
ing bracket up) until there is very little deflection on
the drive belt; (b) Tighten the adjustment screw nut;
(c) Turn the disconnect switch and machine on; (d)
Turn the hydraulic and band drive motors on; (e)
Check the operation of the new drive belt; (f) If the
operation is satisfactory, turn the band drive motor
off and replace the band drive cover.
HYDRAULIC SYSTEM
1. Keep the reservoir filled at all times. Capacity is 10
gallons (37.8 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. Auto -
matic transmission fluid (ATF) is the recommended
fluid.
3. Before changing the hydraulic fluid: (a) Lower the
saw head completely; (b) Stop the hydraulics; (c)
It may be necessary to slide out the power unit to
access the drain plug; (d) Remove the reservoir drain
plug; (e) 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 pres-
sure is 400 psi (28.1 kg/cm²).