SkyTrak 6036 Service Manual - Manual (Page 231)

Section 9 Hydraulic System
Model 6036/6036T S/N 9B0500 thru 14833 9-81
Fig. 9.48 Control Valve Inlet Section (Sectional View)
MK0370
Bypass and Relief Adjustment
1. Loosen the locknut, Fig. 9.48. Turn the
bypass adjustment plug carefully in or out until
the pressure gauge reads 200 - 210 psi
(13,8 -
14,5 bar). While holding the plug setting,
tighten the locknut to 60 - 70 lb-ft (81,6 - 95,2
Nm).
2. Remove the SAE plug. Adjust the relief valve
setscrew carefully until the poppet just cracks
at a pressure gauge reading of 2650 psi
(183
bar).
3. Install SAE plug.
4. Shut off the engine. Operate the control
valve manually by threading a 3/8 NC x 2"
long capscrew into the spool shift collar of
each hydraulic function, Fig. 9.46. Actuate
all of the hydraulic functions (boom raise/
lower, extend/retract) after the engine has
stopped to relieve any trapped pressure.
5. Remove pressure gauge and tee and from
control valve. Install connector and connect
supply hose to control valve connector.
Warning
Never bottom out adjustments. This can result in
severe over pressure conditions and cause per-
sonal injury or even death.
1. Plug
2. Filter
3. O-ring
4. O-ring
5. Plug
5
1
4
2
3
Fig. 9.47 Inlet Bypass Filter
BYPASS ADJUSTMENT
PLUG AND SEAT
SAE PLUG
LOCKNUT
LOAD SENSE
CAVITY
BYPASS SPOOL
RETURN
PASSAGE
POPPET
CONE
POPPET
SPRING
RELIEF VALVE
SETSCREW
COMPENSATOR
SPRING
SUPPLY
PASSAGE