Maintenance
January 2019 6-17
Opener Maintenance - Continued
Hydraulic System Trouble Shooting
If pressure can not be maintained in the hydraulic
system, or openers drop rapidly from transport position,
a leaky hydraulic cylinder (bypassing oil across the
piston seal) may be present. To locate a hydraulic leak
in the QUANTUM Air Drill hydraulic system, the following
procedure can be used:
1. Remove pressure from the hydraulic system.
2. Check the drill frame and hoses to make sure that
the leak is not external (leaking oil out of the circuit).
3. Lift the openers into their raised position.
4. Lock the opener hydraulic ball valve.
5. Watch the openers carefully across the drill and
locate the rst opener(s) to visibly drop down from
the raised position (NOTE: This is the general area
of the leaking cylinder, but the rst opener to drop is
not always the leaking cyinder.).
6. Unlock the “OPENERS” hydraulic ball valve and
lift the openers to the raised position and lock the
hydraulic remote in the raised position to apply ow
to the circuit for about ve minutes.
7. Let the hydraulic remote go back to neutral, shut off
the tractor, and then go and check the temperature
of the opener cylinders by feeling the cylinder barrels.
Start at the group of cylinders that were located in
step 5) and then work from the outer openers in to
center until a “hot” cylinder is located.
8. Under normal conditions the cylinders should remain
cool (ambient temperature or slightly above); the
opener with a “hot” cylinder barrel has the leaky seal
and should be serviced or replaced.
Note: All hydraulic cylinders have a natural leakage
rate. The openers on the QUANTUM drill
will drop over a long period of time during
storage; this is normal. Only check for
leaky cylinders if openers drop rapidly from
transport in a short period of time.
DECAL - S65157
S65157
Valves in Locked Position
Openers Valve Wing Valve
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