Stepp SPHD series User manual

OPERATIONS/MAINTENANCE/PARTS
MANUAL
Diesel Burner Systems
12325 River Road North Branch MN 55056 ~ Phone: [phone] ~ Fax: [phone]
www.steppmfg.com
Rev. 12/2014

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Warranty
Stepp Manufacturing Company Inc. hereby warrants to the original purchaser that products
manufactured by Stepp Mfg. will be free from defects in material and workmanship for a
period of one (1) year from the date of purchase.
Stepp Mfg., at its discretion, will provide for the repair or replacement of any part found
upon examination by Stepp Mfg. to be defective, except as noted below. Such repair or re-
placement will be free of charge to the original purchaser for a period of one (1) year from
the date of purchase, except as noted below.
No warranty is extended to cover:
•Product pump wear or damage caused by foreign objects.
•Routine maintenance, cleaning, and adjustments.
•Parts/components that have been altered, misused, or improperly adjusted or maintained.
•Transportation to and from the place of warranty repair.
•Removal of material from equipment.
The following items are covered solely by their manufactures warranty:
•Engines
•Hydraulic components
•Burners
•Pumps
•Tires
•Other component parts
The following items are covered by a pro-rata warranty:
•Hoses that carry heated materials.
•Heating elements for hoses and wands.
Disclaimer of further warranty:
Stepp Mfg. makes no warranty, expressed or implied, other than this warranty. The implied
warranties of merchantability and fitness for particular purpose are hereby disclaimed. Re-
pair or replacement of products or parts proving to be defective in material or workmanship
shall be the exclusive remedy for breach of this warranty.
Stepp Mfg shall not be liable for incidental or consequential damages including but not
limited to: damages for inconvenience, rental or purchase of replacement equipment, for
loss of profits, loss of material, or other loss resulting from breach of this warranty.
Stepp Mfg reserves the right to incorporate any changes in design into its products without
obligation to make such changes on products previously manufactured.
Please see Warranty section for more details.
Stepp Manufacturing Co., Inc.
12325 River Road
North Branch, MN 55056
P: 651-674-4491 F: 651-674-4221
www.steppmfg.com

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SPHD Stepp Hot Pack Dump Style Trailer
Introduction
Thank you for selecting Stepp highway maintenance equipment. We are confident you will be
satisfied with the Stepp Hot Pack Dump Style Trailer. Stepp Manufacturing is backed by over
70 years of experience in the design and manufacture of highway maintenance equipment.
This experience, along with our innovative design and unique features, make the Stepp Hot
Pack Dump Style Trailer the fastest and most efficient hot box available. Continued research
and development, along with input from you, the user, help make this possible.
To assure safe operation of this equipment, the operator must read and understand all operat-
ing procedures and safety notices contained in this manual. In addition, the operator must re-
ceive instruction from their supervisor, or the manufacturer, on how to safely operate the
Stepp Hot Pack Dump Style Trailer. Contact the manufacture if any questions arise or if you
desire training for additional staff members.
Operating instructions, adjustments, and periodic maintenance procedures are given so you,
the operator, can keep your unit working like new and expect many years of dependable ser-
vice from it. Remember, any machine, regardless of design or type, will perform only in rela-
tion to the way it is operated and the maintenance it receives.
Read this manual carefully and observe all Warnings and Cautions. If you have any recom-
mendations or comments regarding this manual, please send them attention to: Engineering
Dept., Stepp Manufacturing Co. Inc., 12325 River Road, North Branch MN. 55056-6225 or call
651-674-4491. All comments we receive are reviewed and may be incorporated into future
manuals.
When ordering parts or making any inquiry about the Stepp Hot Pack Dump Style Trailer, be
sure to include the model number and VIN found on the data plate attached to the frame.
Description
The SPHD uses a tank, surrounded by an oil jacket. filled with heat transfer oil. The heat
transfer oil is heated by a diesel fired burner. The temperature of the product and the heat
transfer oil is automatically maintained by electronic temperature controls located at the op-
erators station.
An optional tack tank is available to pre-heat the tack oil being used when making road re-
pairs. The tack tank is heated with an independent diesel burner and controlled with a thermo-
stat located at the operators station.
A pump may be installed on the tack tank to pump the tack material through dispensing equip-
ment, such as a hose and wand. The pump is driven by the hydraulic system. The plumbing is
purged of tack material when finished to prevent plumbing freeze-up. This is done by revers-
ing the pump to suck the material out of the system. An optional flush tank may also be in-
stalled to further flush the system of any remaining material.
The dump hopper offers controlled discharge of the contents onto a shoveling platform, or di-
rectly onto the road surface if desired. The dump hopper is hydraulically operated by a scissor
hoist remote controller located near operators station.

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TABLE OF CONTENTS
Introduction 3
Contents 5
Warnings, Cautions, Notes 7
Operations 9
Maintenance 15
Troubleshooting 19
Replacement Parts 25
Warranty Guide 29
Watlow Programming 35
Schematics 45
Heat Transfer Oil MSDS 47
Hydraulic Oil MSDS 57
Tire Information 67
Dump Hoist Manual 81
IMPORTANT NOTICE!
This manual contains cautions and warnings that alert you to potential safety issues.
WARNING is used to inform you of conditions or operations that could cause serious injury or death.
CAUTION is used to inform you of conditions or operations that could cause damage to the equipment
NOTE is used to provide you with additional information that may be helpful or useful for a particular situation.
This manual explains the basic operations, maintenance and use of the Stepp SPHD
Premix Heater. The main objective of this equipment is to maintain heat in patching ma-
terial in order to repair paved surfaces.

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Before Starting or Operating this Machine
Understand and observe all the following Warnings, Cautions, and Notes.
WARNINGS
 This equipment contains mechanical and heating components that may cause serious injury or death if not
handled or maintained properly. All personnel must be properly trained in the operation and maintenance of
this equipment.
 Before refueling, shut off the burners and allow all flames in the burner and pilot light to extinguish. Shut off
the engine.
 Check fuel lines, fuel line connections, and all other components for leaks. If any leaks are found, they must
be repaired before using the unit.
 Know the temperature required for the material being used, and do not exceed this temperature. Avoid over
heating, as this may cause equipment damage, personal injury, and/or death.
 Never load a tank with heated oil when moisture is present in the tank. Depending on the temperature of the
hot oil, the moisture may instantly boil causing hot oil to foam up and out of the tank causing severe burns.
 Do not operate the tack tank burner when the amount of material in the tank is less than 4" above the flues.
Allow 10 minutes cool-down time after the burner has been shut off before exposing the flues. Exposed flues
will over-heat and cause an explosion and/or fire.
 The tack tank cover must be unlatched when operating the tack tank burner. This is to provide for emergen-
cy venting, in the event of a flash, to prevent the tank from exploding.
CAUTIONS
 Know the materials being used and know the proper handling, heating, application, clean-up, and storage
procedures. Not all materials are compatible with each other. Many materials have a very limited shelf life.
Most materials require special handling procedures to prevent personal injury and/or equipment damage.
Contact your material supplier and/or manufacturer for proper handling instructions. Equipment malfunction
or damage due to improper handling or use of the materials is not covered by warranty.
 Do not exceed the maximum heating temperature or storage time as recommended by the material manu-
facturer. This may cause emulsion type materials to separate and become difficult or impossible to remove
from the machine. Consult with the material manufacturer for recommendations.
 Over-agitation or circulation may cause emulsion type materials to separate and become difficult or impossi-
ble to remove from the machine. Consult with the material manufacturer for recommendations.
 Do not mix Anionic and Cationic materials together, as the materials attach to each other and will become
difficult or impossible to remove from the machine. If you are not sure consult your material supplier.
NOTES
 Become familiar with the Material Safety Data Sheet (MSDS) for the material being used in the machine and
take appropriate safety precautions. Wear the proper clothing and protective gear as recommended by the
MSDS and your safety director.
 DO NOT use the equipment unless it is in good condition.
 In case of skin contact with hot materials, dip into cool, clean water immediately. Do not wipe the product,
as this will spread the burn.
 Consult the MSDS and contact your safety director for proper extinguishing of petroleum based fires.
 Carry a fire extinguisher(s) as recommended by your safety director.
 Notify your supervisor or the manufacturer if any questions arise concerning the operation of this equipment.