OWNER’S MANUAL 8/31/21 Page 8 of 18
HYDRAULIC SYSTEM
Hydraulic oil / fluid
:
There is no set replacement interval for hydraulic oil. Hydraulic oil life can vary greatly depending on
operating conditions.
•
Hydraulic oil capacity approximately 8.13 U.S. gallons (30.78 liters).
•
Check reservoir level using sight gauge on side of reservoir. Check before operating and immediately
after cycling all hydraulic components.
•
Add hydraulic oil to the reservoir if oil level is below the sight gauge. In ambient temperatures above
32°F (0°C) use AW or ISO 68 hydraulic fluid. If consistently used below 32°F (0°C) use AW or ISO
46 hydraulic fluid.
•
Change hydraulic fluid filter after the first 50 hours of use. Change it every 200 hours thereafter.
•
Add approximately 1qt (1 liter) of hydraulic fluid to reservoir with each filter change.
•
Recycle / discard the old filter according to environmental standards in your geographic area.
•
Check all hydraulic fittings for leaks and tighten if necessary.
NOTICE:
•
Running the trencher without hydraulic fluid will cause serious damage to the hydraulic pump.
Ensure that the reservoir fluid level is to the top of the sight glass before starting the machine
•
Use BARRETO hydraulic oil filters. Automotive oil filters may fit but are not designed for use in
high pressure oil systems, the filter element may come apart and contaminate the hydraulic oil.
HOUR METER
The
DGI
®
TACH/HOUR
meter tracks the hours of machine operation in order for routine
maintenance to be performed on a timely basis.
Your
DGI
® hour meter is pre-set at the
DGI
® factory to go into
Flash Alert
mode at 25-hour
intervals. Although the engine manufacturer does not require changing engine oil this often,
due to
heavy-duty use and extreme conditions inherent to STK use, Barreto Manufacturing strongly
recommends frequent engine oil changes.
Refer to this manual for equipment service requirements and to the
Engine Manual
for other engine
service requirements.
While
Flash Alert
is active, hold the tip of the RESET TOOL (Key Kancel Wand) against the meter
as shown. Within several seconds the display will stop flashing indicating the Service Interval has
been reset. If the wand gets lost, a small mechanic’s pick-up magnet will reset the meter.
RESET TOOL
