2. OIL LEVEL - Oil level should be maintained in the upper half of the level gauge. Normally the rate of oil
consumption will be very low and it should be unnecessary to add oil more often than at filter changes. Add oil
only to the top line on level gauge.
The S-25A is shipped from the factory with Valvoline 150-46 hydraulic oil. Generally any brand of recognized
mineral hydraulic oil with the same properties should be compatible with Valvoline 150-46, but to avoid any risk
we suggest staying with Valvoline 150-46. If it is desired to change brands, it is necessary to drain the tank and
1/3 refill it with the new oil, operate through several automatic cycles with the index set to full stroke and head
to full rise, drain the tank again, and finally fill the tank with the new brand.
Hydraulic tank capacity is approximately 17 US gallons.
Recommended replacement oils: Chevron AW Hydraulic Oil 46
Esso - NUTO H46
Mobil - Mobil DEC 25
Petro Canada - Harmony AW 46
Texaco - Rando HD 46
Shell Tellus 46
3. OIL TEMPERATURE - Oil temperature is indicated by a thermometer contained in the level gauge Fig 3-13.
Oil temperature during steady operation should stabilize at about 50 - 55 F° above room temperature. Thus in a
70 F° shop one might expect an oil temperature of about 120 F°. Oil temperature should never exceed 160 F°.
4. SYSTEM PRESSURE - System pressure is factory set to 900 ± 25 psi and should not require further
attention except precautionary observation at start-up and occassionally thereafter.
5. BLADE TENSION - Is controlled by system pressure.
6. VISE PRESSURE - Is controlled by system pressure. If machine is equipped with the optional variable vise
pressure; vise pressure is operator adjustable.
3.4
TROUBLE SHOOTING
Most problems which may occur have relatively simple solutions which appear in this section. If the solution is
not found here, contact the Hyd-Mech Distributor from whom you purchased your bandsaw. They have trained
field service people who will be able to rectify the problem.
PROBLEM
PROBABLE CAUSE
SOLUTION
1. Saw is cutting out of square
vertically.
2. Saw is cutting out of square
horizontally.
3. Blade comes off wheels.
1a. Blade worn.
1b. Carbide guides loose.
2a. Angle not set correctly.
2b. Angle pointer has moved.
2c. Stock not square in vise.
3a. Not enough blade tension.
3b. Improper tracking.
1a. Change blade.
1b. Adjust
2a. Adjust accordingly.
2b. The scale is accurate. Adjust
and tighten the pointer.
2c. Adjust accordingly.
3a. Blade tension is determined
by system pressure. Check
that system pressure is as
specified earlier in this
section.
3b. Adjust accordingly
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