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SECTION 7
7-5
CHECK-OUT
CHECK PACKER AND CARRIER
PANEL SHIFT (KNOCKOUT) PRES-
SURES
OPERATIONAL STATUS
Truck Running
PTO Engaged
Speed Up On
Install a 0-3000 PSI (0-207 BAR) pressure gauge
at the quick disconnect coupler on the front control
valve. Check the main relief pressure as described
in Section 7, “Check-Out” of this manual.
Reduce main relief setting to below 1000 PSI (69
BAR).
1.
2.
OPERATIONAL STATUS
Truck Off
PTO Disengaged
Using a screwdriver remove the button plugs from
the end of the Main Control Valve packer and car-
rier sections. Shift the packer and carrier linkage to
the detented position and release, leaving the valve
spools in the detented position.
3.
OPERATIONAL STATUS
Truck Running
PTO Engaged
Speed Up On
While observing the pressure gauge, slowly in-
crease the main relief valve setting. The pressure
indicator will increase until the knockout pressure
setting is reached and the Main Control Valve spool
returns to neutral.
The knockout pressures should be set at 1950 PSI
(135 BAR) for the packer panel section and 2150
PSI (148 BAR) for the carrier panel section. If the
knockout pressure setting requires adjustment, it
may be changed by turning the knockout pressure
adjusting screw, located inside the bonnet, clock-
wise to increase the knockout pressure setting or
counter-clockwise to decrease the pressure setting.
Once the proper knockout setting has been attained,
reinstall the button plug to seal the Main Control
Valve bonnets.
Return the main relief valve pressure setting to its
specified value as described previously.
4.
5.
6.
PACKER
LEVER
CARRIER
LEVER
0
1000
2000
3000
4000
REDUCE MAIN RELIEF
PRESSURE TO BELOW
1000 PSI (69 BAR)
PACKER
VALVE
SECTION
CARRIER
VALVE
SECTION
ADJUSTING
SCREWS
Summary of Contents for LEACH 2R-III
Page 2: ......
Page 8: ......
Page 26: ...SECTION 2 2 8 ...
Page 28: ...OPERATION SECTION 3 LOCATION OF OPERATING CONTROLS 3 2 4 6 5 7 8 1 2 3 8 9 10 11 12 7 ...
Page 46: ...SECTION 3 3 20 ...
Page 54: ...SECTION 4 4 8 ...
Page 60: ...SECTION 6 6 4 PREVENTIVE MAINTENANCE 1 2 3 4 5 6 7 8 ...
Page 62: ...SECTION 6 6 6 ...
Page 76: ...SECTION 7 7 10 ...