323
All Units
Printed in U.S.A.
SEPTEMBER 2009
COPYRIGHT 2009, Heil Environmental
TANDEM VANE PUMP O.I.G.A.I. HYDRAULIC SYSTEM
TROUBLESHOOTING
The Operate-in-Gear-at-Idle (OIGAI) system is designed to perform the side loading operations at
standard idle speed. It is comprised of two major components, the monoblock tandem vane pump and
attached unloader valve assembly.
On Rapid Rail systems the P1 or front section (closest to the pump input shaft) operates the loader
section of the truck while the P2 or rear section (farthest from the input shaft) operates the body section,
which includes the packer. On F7000 series units the flows from both pump sections are combined to run
the lift (loader) then exit the lift valve to operate the body valve. On the Python, P1 goes to the lift and P2
combines after the lift valve to run the body.
The unloader valve assemblies consist of a manifold (pressure) block, a normally open (N.O. or NO)
cartridge valve and a 12VDC-solenoid coil. In operation mode, the current is supplied to the valve coil
causing the valve to CLOSE, forcing pump flow to the respective hydraulic circuit. In bypass mode, the
coil is de-energized causing the valve to OPEN, allowing the oil to re-circulate either back to tank or to the
pump inlet.
TROUBLESHOOTING
The symptoms of a problem in the pump circuit are no operation or slow operation of the loader or packer
system. Since the F7000 series uses combined flows, a possible symptom of system malfunction is the
packer operating at half the normal speed. On a Rapid Rail body with a Rapid Rail lift, each pump section
controls one aspect of the system independent of the other. A malfunction of one pump’s section will
normally only affect one function of the truck. For example the packer will work correctly but not the
loader or vice versa.
There are three primary causes for the pump circuit not to operate properly:
1. Low or no voltage to the unloader valve coil.
2. Malfunction in the unloader valve assembly.
3. Internal problem with the pump.
Perform the following test after finding that there is insufficient or no flow to the loader and/or body valves.
Check the Electrical Supply to the Unloader Valve Coils
With the system turned ON and the engine operating at idle, test the voltage at the coil. It should read a
minimum of 10 VDC. If proper voltage is present and the problem persists, proceed to step 2. If the
voltage is below 10 VDC, check the electrical system for problems that can cause a drop or loss of
voltage to the unloader valve solenoid coil. Some examples are a broken or shorted wire, blown fuse,
fault in the side door switch (if equipped), no alternator input or a failed PLC calibration.
Use an ohm meter to check resistance in the coil. If the measurement is less than 5 ohms or more than
20 then the circuit coil is damaged. If the coil is damaged, replace the coil.
Summary of Contents for HEIL DuraPack 5000
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Page 26: ...SIDE DOOR KIT 272 9046 2 6 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 32: ...TAILGATE ASSEMBLY and PARTS 2 12 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 36: ...TAILGATE COVER FASTENING PARTS 2 13 3 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 38: ...TAILGATE STEP ASSEMBLY 2 13 5 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 40: ...BODY TO CHASSIS MOUNTING PARTS 2 14 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 46: ...LATCH KITS 272 7999 STANDARD 2 18 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 58: ...ARM MECHANISM 272 3925 2 30 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 60: ...ROLL BAR MECHANISM 272 3923 ISSUED MARCH 1999 COPYRIGHT 1999 H E I L 2 32 ...
Page 64: ...WINCH MECHANISM 253 1988 2 36 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
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Page 140: ...BODY HYDRAULICS 4 2 COPYRIGHT 2006 Heil Environmental ISSUED OCTOBER 2006 372 1122 ...
Page 142: ...BODY HYDRAULICS 372 1122 COPYRIGHT 2006 Heil Environmental ISSUED OCTOBER 2006 4 3 1 ...
Page 148: ...BODY HYDRAULICS EJECTOR CYLINDER 4 8 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
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Page 156: ...ROLL BAR MECHANISM HYDRAULICS 4 14 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 158: ...ARM MECHANISM HYDRAULICS 4 16 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 160: ...WINCH CYLINDER HYDRAULICS 4 18 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 164: ...ROLL BAR GRABBER HYDRAULIC 4 22 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
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Page 206: ...FRONT MOUNT PUMP HOSE KIT 272 8459 4 58 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 208: ...FRONT MOUNT PUMP KIT 272 7153 4 60 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 214: ...FRONT MOUNT PUMP KIT 372 2311 4 66 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 218: ...FRONT MOUNT PUMP KIT 372 1225 4 67 3 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 222: ...FRONT MOUNT PUMP KIT 372 1598 4 68 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 230: ...PUMP AIR SHIFT KIT 272 7973 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental 4 70 ...
Page 236: ...PRESSURE TEST GAUGE KIT 272 6347 4 76 ISSUED APRIL 1999 COPYRIGHT 2006 Heil Environmental ...
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Page 268: ...TAILGATE RAISE CYLINDER 001 4880 5 16 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 274: ...REEVING CYLINDER 001 6061 5 22 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 296: ...EJECTOR UNLOAD VALVE B C 031 6272 5 42 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 298: ...REGENERATIVE VALVE 031 6285 5 44 COPYRIGHT 2006 Heil Environmental ISSUED FEBRUARY 2006 ...
Page 308: ...12 000 LB WINCH ASSEMBLY 253 1472 5 54 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 310: ...12 000 LB WINCH MOTOR 219 1879 5 56 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 312: ...HYDRAULIC PUMP 219 1870 001 5 58 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 314: ...POWER MISER VALVE 031 3241 5 60 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 316: ...DRY VALVE 031 3230 5 62 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 318: ...FRONT MOUNT PUMP 219 1893 5 64 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 342: ...FRONT MOUNT HYDRAULIC PUMP 219 1894 5 84 COPYRIGHT 2005 Heil Environmental ISSUED JUNE 2005 ...
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Page 346: ...TAILGATE WIRING 6 2 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 372 1775 ...
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Page 382: ...BUZZER KIT 108 3646 RIGHT HAND 7 4 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 384: ...LEFT HAND BUZZER KIT 372 1599 7 6 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 386: ...HEAVY DUTY CONTRACTORS KIT 272 3851 7 8 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 390: ...HIGH PRESSURE FILTER KIT 272 5082 7 12 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 392: ...HIGH PRESSURE OIL FILTER 075 0930 7 14 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 404: ...TAILGATE RAISE CYLINDER 001 6286 7 24 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
Page 426: ...AMBER FLASHING LIGHT KIT 272 9363 7 46 COPYRIGHT 2006 Heil Environmental ISSUED JANUARY 2006 ...
Page 438: ...BASE MONITOR SWIVEL 161 0179 7 58 1 ISSUED JANUARY 2006 COPYRIGHT 2006 Heil Environmental ...
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