29

SLIDING LADDER DESCRIPTION
This Heil Super Jet trailer is equipped with a retractable ladder. When used in
conjunction with facility safety practices, it aides safe access to the base of
the tank ladder. The retractable ladder consist of the following:
1. Vertical aluminum side rails and horizontal steps.
2. Pivoting vertical side rail guides, one for each side rail.
3. Tethered mechanical locking pin.

SLIDING LADDER OPERATION
1. Disengage mechanical locking pin.
2. Pull ladder outward and pivot down toward you while holding bottom of
ladder.
3. Allow ladder to slide downward until it engages the ground.
4. Reverse procedure above to stow ladder. Ensure mechanical locking pin is
engaged and securely fastened before moving trailer.

30

AERATION SYSTEM OPERATIONAL
DESCRIPTION
In the aeration system, compressed air is injected at the base of each hopper
and filters upward through to aerate the cargo and make it flow-able. If the
cargo does not require aeration, the tank is pressurized through the Top Air
Line. When sufficient pressure is built up in the tank, the operator opens the
pressure control valve and the individual hopper discharge valves so that the
air-borne product flows through the discharge line into the storage facility.

Figure 8. Simplified Aeration System Diagram

AERATION UNITS
Aerators are flexible neoprene diffusing collars designed to fluidize pulverants,
granular, and wet cargoes such as slurries. Figure 9 illustrates air flow
through the aerator.

Figure 9. Aerator Air Flow

31

OPERATING INSTRUCTIONS
WARNING
Never operate this bulk transport unless you are fully aware of the
location of all the control valves and shut down procedure.

HOOKING TRACTOR TO TRAILER
Prior to backing tractor under trailer, check the following items:
1. Trailer brakes are set or wheels blocked to prevent trailer from rolling.
2. Upper 5th wheel is at approximate height of lower 5th wheel.
3. Latch on lower 5th wheel is in “Open” position.
4. All personnel are clear of the area.
Then proceed as follows:
1. Back tractor under trailer, aligning king pin with slot in lower 5 th wheel.
When latch “sets” around king pin, check hookup by attempting to pull forward.
2. Shut down engine and apply parking brake.
3. Double Check latch on 5th wheel to ensure that it is fully engaged.
4. Connect tractor supply and control brake hoses to glad hands on trailer.
The glad hands are marked for correct installation.
5. Connect electrical connector to receptacle on trailer.
6. Raise landing gear supports.
7. Check brakes and lights for proper operation.
8. Anti-Lock pilot light must be lit when brakes are applied.

32

SAFETY CHECK
A vehicle safety check should be performed daily prior to operation. See
Preventive Maintenance Section.

DANGER
NEVER open manhole unless tank is completely depressurized. Even
a slight amount of residual pressure will cause manhole to fly open
when unlatched.

START-UP
When units are parked, especially over night, moisture can form inside the
tank and piping. To clear out most of the moisture, remove dust cap on discharge line, start compressor or blower and pressurize unit. Then open each
of the hopper discharge valves to blow out the unit. This procedure will help
prevent the discharge valves and aerators from becoming clogged.

CAUTION
Blowdown valve should be OPEN at all times except when unloading.
This will help relieve pressure buildup due to changes in ambient
temperature, friction, product expansion, etc.

LOADING
The type of cargo being hauled and the loading situation will determine the
best method of loading. Heavier materials such as sand and sugar can normally be loaded through the center manhole and allowed to overflow into the
adjoining hoppers. Light and bulky products such as flour or plastic pellets
should be loaded through the individual manholes for better distribution. If so
equipped, the pneumatic loading line offers an alternate loading method.
1. Close all valves except the blowdown valve before loading and while in
transit.
2. Connect load line hose from facility
3. Following facility guidelines and procedures, engage facility compressor to
initiate product flow as shown in Figure 10.

33

Figure 10. Schlumberger
truck at loading facility

4. Monitor loading process.
5. Once the desired fill is achieved, disengage
facility compressor to cease loading following
facility guidelines and procedures.
6. Ensure all connections and openings (fill lines, manholes...etc.) are closed
and secured for safe transportation.
7. Ensure blowdown/vent line is open to avoid pressure buildup due to changes in ambient temperature and product expansion during transit.
Figure 11. Schlumberger
loading facility

34

UNLOADING
1. Position trailer for optimum unloading. See page 37.
2.

Retrieve discharge hose and connect it to the discharge line. Attach opposite end of hose to adapter on storage facility fill line.

NOTICE
Never discharge payload into a storage facility of unknown contents
or capacity. Check to ensure that the storage facility will accept the
total payload.

DANGER
When unloading, the discharge hose must be secured at both ends
prior to pressurizing unit. A loose hose will bull whip potentially
causing injury.
3. Open the pressure control valve.
4. Engage blower or compressor.
5. Open all aeration valves and close pressure control valve and blow down
valve. Pressurize unit. If cargo does not require aeration, open the Top
Air Supply Valve (Item 16, Page 10) to pressurize the unit.
6. When unit has reached operating pressure open the proportioning valve ½
to ¾ of full open.
7. SLOWLY open discharge valve on rear hopper.
8. Adjust the pressure control valve to maintain maximum operating pressure and slight movement of discharge hose.
9. Close the front and center individual hopper aeration control valves, on
units so equipped.
10. When tank pressure begins to drop rapidly, close rear discharge valve.
11. Open aeration valve on center hopper.
12. SLOWLY open the discharge valve on center hopper.
13. Close the aeration valve on rear hopper.

35

14. Readjust pressure control valve if necessary.
15. When tank pressure begins to drop rapidly, close center discharge valve.
NOTICE
When pressurizing unit, look for air leaks. If any are found, shut
down immediately and repair the leak.
16. Open aeration valve on front hopper.
17. SLOWLY open front hopper discharge valve.
18. Close aeration valve on center hopper.
19. When tank pressure begins to drop rapidly, close front discharge valve.

Warning
Do not exceed working pressure. If pressure rises above limits, shut
down immediately and investigate.

20. Purge unit by opening all aeration valves and opening and closing discharge valves rear to front.
21. Open blow down line to return the unit to atmospheric pressure.
22. Disengage blower or compressor.

CAUTION
Before opening blowdown line, make sure no one is in line of air
stream.
23. Disconnect and stow discharge hose.

DANGER
Always relieve pressure in discharge hose before disconnecting it.
24. Close all valves except the blow down valve.

36

NOTICE
Variations or deviations to the unloading procedure may be necessary due to the type of product being unloaded or the nature of the
unloading site. Operating more than one hopper at a time is common
with extremely large capacity blowers or a combination of compressor and blower only. A second and third hopper can be activated in
maintain desirable product to air mixture.

OPERATING TIPS
MINIMIZING UNLOADING TIME
The HEIL “Super Jet” is designed with one of the fastest pneumatic discharges
in the industry. Unloading time will depend, however, on variables such as
type of product being unloaded, unloading site, condition of equipment, etc.
The following points should be considered.
1. Vertical positioning of discharge hose results in smoother product flow.
Product tends to “settle” in portions of hose which runs horizontally (see
figure 12). This accumulation of product will restrict product flow, will increase unloading time, and may eventually clog the line.

Figure 12. Product Flow and Build Up

37

Comparing product flow through a hose in the vertical portion of hose
(figure 13). It can readily be seen that vertical positioning of hose results in
smoother product flow.

Figure 13. Vertical
Product Flow

NOTICE
If discharge hose must be run horizontally for any considerable distance, elevate the hose at intervals to create slight “humps” in the
hose. This will help keep the product flowing freely.

38

MINIMIZING UNLOADING TIME (CON’T.)
2. The relative density (product to air ratio) decreases as the elevation
increases. The higher the storage facility, the longer it will take to unload.
Figure 14, illustrates the relative density at various elevations. Note that
as the product head decreases, the air velocity will increase and air
pressure will decrease.

Figure 14. Relative Density at Various Elevations
3. Heavy, fine materials such as sand or sugar require considerably more
unloading time. Light, bulky products offer more resistance and are more
easily carried by the air stream. Use the pressure control valve and the
product discharge valve to maintain the optimum product-to air ratio for
the type of product being unloaded.

39

SUS-739 Diesel Powered Blower (1000 CFM)
OPERATION

1. Check the unit for proper lubrication and proper oil
level.
2. Open trailer un-loader valve.
3. Starting engine turn key to on position wait 5 seconds
for system to load then turn key to start.
3. Idle the engine to warm up blower at zero pressure
for 15 minutes at no load at this time check for hot
spots and other indications of interference.
4. Slowly increase engine speed to 2100 RPM at zero
blower pressure.
5. Close trailer un-loader valve.
6. Unit is operational at this time.
7. If malfunctions occur do not continue to operate.
Problems such as knocking rotors can cause serious
damage if the unit is operated without correction.

Maintenance
1. Shaft driveline inspect and grease every 50 hours.
2. Air Filter- inspect and change as needed every 75 hrs.
3. Compressor-refer to enclosed Gardner Denver manual.
4. CAT engine maintain as manufactures
recommendation.
For further support and parts list for your blower please contact Gardner Denver.
Phone: (217) 222-5400
www.gardnerdenver.com
40

PREVENTIVE MAINTENANCE
INTRODUCTION
Lubrication and service performed at regular intervals will keep the DRY BULK
TRANSPORT in top operating condition for the longest period of time. The
importance of regular inspection cannot be over-emphasized. Making necessary adjustments, tightening nuts and bolts, checking air lines, lights and wiring connections will help prevent serious trouble and delays on the road.
The driver should be the first line of defense in Preventive Maintenance. A
conscientious and alert operator will promptly report all need for adjustment
or repair. A vehicle safety check should be performed daily prior to operation.

LUBRICANTS
It is not the policy of the Heil Trailer International to publish lists of approved
lubricants or guarantee lubricant performance. The responsibility for the
quality of any lubricant rests solely with the distributor or manufacturer of the
lubricant.

DELIVERY INSPECTION
All units are thoroughly tested and inspected at the factory. As an added precaution, the following items should be double checked upon delivery.
Axles……………………………………………………………………….… Check king pin alignment
Wheels…………………………………………………………………………...Check wheel lug torque
Brakes……………………………………………Check for proper operation and adjustment
Lights and Wiring……………………………………………Check lights for proper operation
Air Spring Bolts……………………………………………………………..Check for proper torque
Shock Absorber Bolts………………………...…………………………Check for proper torque
Suspension Pivot Connection Bolts…………………………….…Check for proper torque
Piping………………………………………………………………………………………...Check for leaks
Manhole Cover………………………Check clamping device for proper cover closure
Landing Leg Support Bolts…….……………………………...…….Check for proper torque
Front and Rear Structure Bolts………………………………….…Check for proper torque

41

PREVENTIVE MAINTENANCE SCHEDULE
DAILY
Anti-Lock Brake System……………………………………………Check for proper operation
Lights and Wiring………………………………………Check all lights for proper operation
All Bolts………………………………………………………….……...Visually check for tightness
Air Reservoirs………………………………………………….……Drain at the end of each shift
Tires………………………………………………………...Check for proper inflation and inflate

WEEKLY
Wheel Seals………………………………………………….Check for oil leakage and oil level
Wheel Lugs……………………………………………………………….…Check for proper torque
Wiring………………………………………………………………….………....Check all connections
Suspension Bolts..…………………………………………………….…Check for proper torque
Piping………………………………………………………………….…Check for leaks and damage
Manhole………………………………………………………..Check clamping device for proper
cover closure and check gasket for damage
Front and Rear Structure Bolts………………………………….…Check for proper torque

MONTHLY
Manhole……………………………………………………………..Clean manhole and oil clamps
General Inspection………………………………………..Perform inspection (see page 41)
Supports………………………………Lubricate; check mounting bolts for proper torque
Axle Camshafts……………………………………………………….Lubricate all grease fittings
90 DAYS
Relief Valve………………………………….Remove and inspect relief valve for clogs of
hardened material. Bench test relief valve to ensure proper operation.

42

EVERY 5000 MILES
King Pin Alignment……………………………………………………Check for proper alignment
Brakes………………………………………………………………………..…….………Adjust as needed
Wiring…………………………....Check for chafed or broken wires, ground wire
Connections, loose wire retaining clips and dielectric grease
Upper 5th Wheel…………………………………………………………………..………………..Lubricate
Suspension…………………………………….……………………...Check for proper bolt torque
Piping………………………………….………Check all piping supports-tighten if necessary
Aeration……………………………………Check all aeration tee bolts - hand tighten only

EVERY 10,000 TO 25,000 MILES
Wheel Bearings………………………………….Verify proper end play and adjust as
necessary
Brakes………………………………………………..Inspect linings, free-up brake shoes and
anchor pins
EVERY TWO YEARS
Aeration…………….…………………………….Inspect and replace aeration components
as necessary. At a minimum, trailers in abrasive product service should be
inspected every six months.

43

Lubrication and Service Chart
X

Drain any water from air reservoirs

X

Check manhole clamps, cover closures and gaskets

X

Clean manhole and lubricate its clamps
X

Check the operation of all lights

X

Check all wiring connections

X

Check for broken or chafed wires
X

Check brake operation

X

Adjust brakes

X

Inspect slack adjusters, brake linings and brake chambers

X

Free up brake shoes and anchor pins
X

Check condition of walkways and toe rails

X

Check suspension bolt torque
Check tires for damage and wear

X
X

Check axle alignment to king pin
X

Check lubricant level and oil seals on the axles

X

Check ladder bolt tightness
Check the operation of pressure relief device (

X

Inspect aeration system

X
X

Lubricate grease fittings on axle camshafts

X

Check wheel bearings

X

Check lug nut torque
Check piping supports and mounting fastener tightness

X

Check front and rear structure fastener tightness

X

Check all valves, piping and manholes for leakage

X
X

Check landing gear mounting fastener tightness
X

Check upper coupler fastener torque

X