Mec 4069RT - ERT Model Decal Locations

“4069RT” Service and Parts ManualMarch 2014
Page 1-14
HYDRAULIC PRESSURE ADJUSTMENT
Figure 1-6: Adjustable Valve Location
M AIN R ELIEF
(RV1)
1. Attach a 0-5000 psi
gauge to Port GP.
2. Place a 4 inch x 4
inch (10cm x 10cm)
wood block in front
of each wheel.
3. Set the Drive Mode
to High Speed.
Using the Drive
function, slowly
push the control
handle completely
forward. Hold for 10
seconds.
4. If pressure is LOW,
adjust main relief
valve ¼ turn clock-
wise and recheck.
5. If pressure is HIGH,
adjust main relief
valve ¼ turn coun-
terclockwise and
recheck.
Repeat until the
pressure is correct as
listed in Table 1-1.
ART_4484
GP
Lift Relief
RV2
Main Relief
RV1
Gauge Port
GP