“4069RT” Service and Parts Manual March 2014
Page 1-15
HYDRAULIC PRESSURE ADJUSTMENT
L
IFT
R
ELIEF
(RV2)
1. Attach a 0-5000 psi gauge to Port GP.
2. With no load on platform, use the Lift function to raise the platform completely.
3. Press and hold the Lift switch for 10 seconds to get an accurate reading on the pres-
sure gauge.
4. If pressure is LOW, adjust lift relief valve ¼ turn clockwise and recheck.
5. If pressure is HIGH, adjust lift relief valve ¼ turn counterclockwise and recheck.
Repeat until the pressure is correct as listed in Table 1-1.
D
RIVE
C
OUNTERBALANCE
V
ALVES
(CBV1, CBV2)
The Drive Counterbalance Valves are not adjustable and should be replaced if they are
determined to be malfunctioning.
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