Diamond Products CB21H-XL - Manual (Page 29)

MAINTENANCE
INSTRUCTIONS
 Oil Filter: change the filter when
indicated by the gage at the filter.
 Oil Change: establishing an oil analysis
program is the preferred method of
determining oil condition and when to
change it. If the oil is kept clean, dry,
and operated at moderate
temperatures, it can last for several
years. With no analysis program an oil
change every 200 hours is
recommended. See the section
Hydraulic Fluid for specifications. A ½”
pipe thread oil drain port is at the
bottom of the hydraulic tank.
 Gas Engine Oil: Change engine oil and
filter and perform other routine
maintenance as recommended in the
engine operation manual.
 Inspect hoses, couplings, and fittings
daily for leaks, tighten as required.
Clean quick disconnects frequently.
Replace any leaking or defective
components immediately.
 Check hydraulic oil level daily. Fill tank
to upper end of sight tube with unit off.
 Grease the wheel bearings annually.
TROUBLESHOOTING
PROBLEM POSSIBLE SOLUTIONS
Gas engine will not start. 1) Pull out emergency stop button.
2) Open gas line valve below gas tank.
3) Dead battery?
4) Low engine oil?
Low oil flow. Check gas engine RPM at tachometer on
front panel. Adjust governor to 3850 RPM if
required. See engine manual.
System builds high pressure with flow control
valve set to zero. Contamination may have plugged an orifice
in the CF port of the flow valve. Detach the
valve from the front panel and remove the
fitting from the CF port. A .015” orifice should
be visible at the bottom of the port. Push a
fine wire through the orifice and re-install.
Keep this manual and the engine manual readily available at all times for reference.