Stepp OJK-H series - User Manual

Questions and Answers

M
monicafitzgeraldAug 14, 2025
Why is my Stepp OJK-H Industrial Equipment lacking performance?
- M
  Michael WilsonAug 14, 2025
  Lack of performance in your Stepp Industrial Equipment can stem from several causes. Check for a plugged strainer screen and service it if needed. Replace the hydraulic oil filter if it's plugged. Inspect the suction hose for collapse or air leaks, replacing it and servicing the strainer screen if necessary. Ensure the fluid level is adequate and address any overheating by cleaning the oil cooler fins. Also, worn pumps or hydraulic motors may require adjustment, rebuilding, or replacement. Inspect hydraulic lines for crushing and replace them if damaged. Finally, ensure the "Brand" valve relief is correctly adjusted to 1000 lbs.
M
Ms. Alicia AndrewsAug 18, 2025
What to do if hydraulic motors do not turn or turn slowly in Stepp OJK-H Industrial Equipment?
- F
  fordjamesAug 18, 2025
  If the hydraulic motors in your Stepp Industrial Equipment aren't turning or are moving slowly, the product in the tank might not be fully melted; allow more time. Alternatively, foreign material might be jamming the agitator or the product pump; remove any obstructions.
E
elizabethbarryAug 21, 2025
What to do if my Stepp OJK-H product pump does not turn?
- M
  myerscolleenAug 21, 2025
  If the product pump on your Stepp Industrial Equipment isn't turning, it could be due to several reasons. First, ensure the product in the tank is fully melted by allowing more time. Second, check the safety interlock and allow the material to reach 275° on the product and hose thermostat. If these steps don't resolve the issue, refer to the "Hydraulic System" troubleshooting.
M
Melissa WeissAug 25, 2025
What causes unusual noises in Stepp OJK-H?
- S
  stephen85Aug 25, 2025
  Unusual noises in your Stepp Industrial Equipment can be caused by several factors. Check for low hydraulic fluid and fill the reservoir to the proper level. Inspect the suction hose for air leaks and replace it if necessary. Damaged pumps or hydraulic motors may also be the source of the noise, requiring repair or replacement.
J
John Wagner DDSAug 27, 2025
What to do if there is a lack of flow from the wand of Stepp OJK-H?
- A
  Alicia CarterAug 28, 2025
  If you're experiencing a lack of flow from the wand of your Stepp Industrial Equipment, consider these possibilities: * The product temperature may be too cold, so heat it to the manufacturer's recommended temperature. * The product may have frozen in the wand and hose; allow additional time for the heating element to melt it. * The WPC valve may not be positioned correctly; refer to the operating instructions for proper positioning. * The WPC valve and external plumbing may be frozen; apply heat to remelt the product. * The product pump may be worn; adjust or repair it as necessary. For non-functioning heat elements or incorrect WPC valve position, refer to the "Electric Wand & Hose" troubleshooting or operating instructions.
D
Daniel GonzalesAug 31, 2025
What causes excessive oil leaks from pump or hydraulic motor shaft in Stepp Industrial Equipment?
- M
  Mario RasmussenAug 31, 2025
  Excessive oil leaks from the pump or hydraulic motor shaft in your Stepp Industrial Equipment are typically caused by a bad shaft or shaft seal, which should be replaced as necessary.
C
Carol RomeroSep 3, 2025
What causes no heat, or low heat in wand or hose of Stepp Industrial Equipment?
- S
  shawvictorSep 3, 2025
  No heat, or low heat in wand or hose of Stepp Industrial Equipment can be caused by loose pulleys and loose or missing belts on 24 volt alternator. Check for loose pulleys and loose or missing belts on 24 volt alternator.
S
Shane MasonSep 6, 2025
Why does the burner stay burning in Stepp Industrial Equipment?
- J
  Jennifer JohnsonSep 6, 2025
  The burner stays burning in Stepp Industrial Equipment if the power switch is "on", the circuit breaker is not tripped and that the engine is running. Check that the power switch is "on", the circuit breaker is not tripped and that the engine is running.
C
christophercampbellSep 10, 2025
Why does the burner light but goes out in Stepp OJK-H Industrial Equipment?
- A
  Anna MurraySep 10, 2025
  The burner lights but goes out in Stepp Industrial Equipment because of fuel supply issues, fuel pump drive coupling condition, air in the system, electrode condition and adjustment, or Ignition Transformer malfunction. Verify fuel supply to burner, check condition of fuel pump drive coupling, bleed system. Check electrode condition and adjustment. Check function of Ignition Transformer.

Summary

Warranty

Introduction

Before Starting or Operating this Machine

Warnings

Critical safety guidelines and potential hazards associated with equipment operation.

Cautions

Precautions to prevent equipment damage or personal injury.

Notes

Helpful information and reminders for safe and effective equipment use.

Quick Specs

Description

Description Heating System

Burner System

Details on the diesel burner system for heating transfer oil.

Agitator

Information on the hydraulically operated agitator and its function.

Product Pump

Explanation of the hydraulically operated product pump and its controls.

Description Controls

Stepp AKC Advanced Kettle Controls

Overview of the AKC controller features and functions.

Optional Equipment

Description of optional equipment like Autoloader and Exact Flow Wand.

Description Misc.

Heated Hose & Wand

Details on the heated hose and wand assembly.

Overnight Heater

Information on the optional overnight heater feature.

Digital Engine Management Controls

Explanation of engine management controls and indicators.

Operations

Operations Basic Operations

Pre-start Checks

Essential checks to perform before starting the engine.

Operations Transporting and Loading

Transporting

Procedures for safely transporting the equipment.

Loading

Instructions for loading product into the kettle.

Operations Engine

Engine Starting

Step-by-step guide for starting the engine.

Operations Burner and Pump

Burner & Pump Operations

Detailed steps for operating the burner and pump systems.

Operations Application

Standard Application Operations

General procedures for applying product to road surfaces.

Application Operations with Pump Saver

Specific instructions for application using the pump saver option.

Operations Shutdown

Standard Shutdown Procedures

Correct procedures for safely shutting down the equipment.

Operations Optional Equipment

Optional Air Compressor

Information on the optional 100 CFM rotary screw air compressor.

Optional Autoloader

Details on the optional autoloader for sealant application.

Maintenance

OJK Maintenance Schedule

Maintenance Engine

Oil & Filter Change

Procedure for changing engine oil and filter.

Air Cleaner Service

Instructions for cleaning or replacing the air cleaner element.

Fuel Filter Change

Steps for replacing the engine fuel filter.

Cooling System Service

Procedures for flushing and refilling the cooling system.

Maintenance Hydraulic System

Filter Change

Procedure for changing the hydraulic filter.

Hydraulic Oil Change

Steps for draining and refilling the hydraulic reservoir.

Strainer Screen Service

Instructions for cleaning the hydraulic system strainer screen.

Maintenance Heat Transfer Oil

Level Check

Procedures for checking the heat transfer oil level.

Oil Change

Steps for changing the heat transfer oil.

Packing Adjustment, Hot Oil Pump

Instructions for adjusting the hot oil pump packing gland.

Maintenance Burner

Fuel Filter Replacement

Procedure for replacing the burner fuel filter.

Maintenance Combustion Chamber

Combustion Chamber Inspection

Steps for inspecting the combustion chamber.

Combustion Chamber Liner and Heat Transfer Tube Replacement

Procedure for replacing the combustion chamber liner and heat transfer tubes.

Maintenance Hot Asphalt Hose Replacement

Hose Removal

Instructions for removing the hot asphalt hose.

Hose Installation

Instructions for installing a new hot asphalt hose.

Maintenance Hose Heating Element Replacement

Hose Heating Element Removal

Procedure for removing a functioning hose heating element.

Maintenance Hose Heating Element Replacement

Hose Heating Element Installation

Procedure for installing a new hose heating element.

Maintenance Hose Heating Element Replacement

Hose Heating Element Removal and Installation

Instructions for removing and installing non-functioning hose heating elements.

Maintenance Wand & Boom Heating Element Replacement

Wand & Boom Heating Element Removal and Installation

Procedure for replacing wand and boom heating elements.

Troubleshooting

Troubleshooting Hydraulic System

Lack of Performance

Common causes and solutions for hydraulic system performance issues.

Hydraulic Motors Do Not Turn or Turn Slowly

Troubleshooting tips for slow or non-operational hydraulic motors.

Unusual Noises

Identifying causes of unusual noises in the hydraulic system.

Excessive Oil Leaks from Pump or Hydraulic Motor Shaft

Troubleshooting oil leaks from pumps or motor shafts.

Troubleshooting Product Delivery

Product Pump Does Not Turn

Diagnosing why the product pump is not turning.

Lack of Flow from Wand

Troubleshooting steps for no product flow from the wand.

Troubleshooting Diesel Burner Component

Primary Controller Burner MTD;Hard Wired

Details on the primary controller and its wiring.

Troubleshooting Diesel Burner

Photo Electric Eye

Testing and troubleshooting the photo electric eye.

Fuel Valve

Testing and troubleshooting the fuel valve.

Ignition Transformer

Troubleshooting the ignition transformer for spark production.

Troubleshooting Viking Pump

System

Troubleshooting causes related to system conditions for Viking pumps.

Pump

Troubleshooting causes related to the pump itself.

Drive

Troubleshooting causes related to the drive mechanism.

Replacement Parts

Replacement Parts Diesel Burner

Replacement Parts Controls

Replacement Parts Overhead Boom

Replacement Parts 8’; 12’ Heated Hose

Replacement Parts 15’; 20’ Heated Hose

Replacement Parts Trigger Wand

Replacement Parts Heated Wand

Replacement Parts Non-Heated Wand

Replacement Parts Product Pump Drive Line

Replacement Parts Product Pump

Replacement Parts Alternator; Hydraulic Pump Drive

Replacement Parts Agitator

Replacement Parts Misc.

Replacement Parts Brakes and Axles

NHTSA

NHTSA Reporting Safety Defects

Procedure for reporting safety defects to NHTSA and Stepp Manufacturing.

Consumer Warranty Guide

General Warranty Statement

Stepp Manufacturing’s One (1) Year Limited Warranty

Details of the manufacturer's one-year limited warranty.

Twelve (12) Month Pro-Rata Limited Warranty Heated Asphalt Hose and Heating Elements

Warranty Claim Authorization

Schematics

Heat Transfer Oil MSDS

Material Safety Data Sheet

Section 1 Product and Company Identification

Product identification, supplier information, and emergency contacts.

Section 2 Composition; Information on Ingredients

Details on hazardous substances or complex components.

Section 3 Hazards Identification

Information on potential health effects and hazard classifications.

Section 4 First Aid Measures

First aid procedures for inhalation, skin, eye contact, and ingestion.

Material Safety Data Sheet

Section 5 Fire Fighting Measures

Guidance on extinguishing media and fire-fighting procedures.

Section 6 Accidental Release Measures

Procedures for spill notification and management.

Material Safety Data Sheet

Section 7 Handling and Storage

Recommendations for safe handling and storage of the material.

Section 8 Exposure Controls; Personal Protection

Guidance on exposure limits, engineering controls, and PPE.

Material Safety Data Sheet

Section 9 Physical and Chemical Properties

Key physical and chemical properties of the material.

Material Safety Data Sheet

Section 10 Stability and Reactivity

Information on material stability, conditions to avoid, and hazardous decomposition.

Section 11 Toxicological Information

Data on acute toxicity and chronic/other effects.

Material Safety Data Sheet

Section 12 Ecological Information

Information on ecotoxicity, mobility, persistence, and bioaccumulation.

Section 13 Disposal Considerations

Recommendations for proper disposal of the product and containers.

Material Safety Data Sheet

Section 14 Transport Information

Regulatory information regarding transportation.

Section 15 Regulatory Information

Information on regulatory compliance and chemical inventories.

Material Safety Data Sheet

Section 16 Other Information

Additional information, including document revisions and disclaimers.

Hydraulic Oil MSDS

Viking Pump Manual

Technical Service Manual Heavy Duty Pumps

Special Information

Danger!

Critical safety warnings regarding pump operation.

Maintenance

General maintenance guidelines for Viking pumps.

Suggested Repair Tools

List of recommended tools for pump repair.

Cartridge Mechanical Seal Replacement

Danger!

Safety warnings before disassembling the pump.

Assembly Optional Mechanical Seal

Instructions for optional mechanical seal assembly.

Cartridge Mechanical Seal Installation

Tapered Installation Sleeve

Procedure for installing the tapered installation sleeve.

Mechanical Seal Rotary Member

Instructions for installing the mechanical seal rotary member.

Repair: Models H, HL, K, KK, L, LQ and LL Packed Pumps

Disassembly

Danger!

Critical safety warnings before disassembling the pump.

Assembly

Steps for assembling the pump components.

Repair: Models H, HL, K, KK, L, LQ and LL Behind the Rotor Component Mechanical Seal

Disassembly

Assembly

Instructions for pump assembly after disassembly.

Thrust Bearing Adjustment Size H, KL, K, KK, L, LQ, LL Pumps

Installation of Carbon Graphite Bushings

Pressure Relief Valve Instructions

Instructions for operating the pressure relief valve.

Disassembly

Procedure for disassembling the pressure relief valve assembly.

Beckett Burner Manual

ADC Oil Burner Manual

Prepare Before Installing

Hazard Definitions

Defines danger, warning, caution, and notice symbols.

Specifications

Key specifications for the ADC oil burner.

Notice Special Requirements

Important notices regarding installation and operation.

General Information

Equipment Located in Confined Space

Guidelines for installing equipment in confined spaces.

Exhaust Fans and Other Air-Using Devices

Information on air circulation and exhaust requirements.

Clearances to Burner and Equipment

Recommended clearances for burner and equipment installation.

Exhausting Hazardous Fumes

Safety precautions regarding the exhaustion of hazardous fumes.

Low Firing Rate Baffle

Details on the low firing rate baffle (LFRB).

Nozzle Assembly Maintenance

Replace the Burner Nozzle

Procedure for replacing the burner nozzle.

Check;Adjust Electrodes

Instructions for checking and adjusting electrodes.

Igniter Maintenance

Maintenance procedures for the igniter.

Servicing Nozzle Line Assembly

Steps for servicing the nozzle line assembly.

Fuel Supply

Connect Fuel Lines

Instructions for connecting fuel lines to the burner.

Fuel Supply Level with or Above Burner

Guidance on fuel supply level relative to the burner.

Fuel Supply Below Level of Burner

Considerations for fuel supply below the burner.

Fuel Line Replacement (Remote Tank Only)

Procedure for replacing fuel lines from a remote tank.

Fuel Line Valve and Filter

Information on the fuel line valve and filter.

Burner Wiring

Burner Installation on equipment

Instructions for installing the burner on equipment.

Burner Replacement

Details on replacing the burner assembly.

Drive Component Maintenance

Motor, Blower Wheel, and Coupling Replacement

Procedures for replacing drive components.

Pump Maintenance

Maintenance procedures for the pump.

Valve Coil and Stem Replacement

Instructions for replacing valve coil and stem.

Start Up Burner & Set Combustion

Basic Configuration Operation

Standard operational procedures for burner start-up.

With Igniter Control

Operation with the optional igniter control.

Set Combustion with Instruments

Steps for setting combustion using instruments.

Maintain & Service Burner

Owners Information

Information for the equipment owner regarding service.

Properly Installed and Serviced Equipment

Guidelines for equipment that is properly installed and serviced.

Extended Down Time

Recommendations for equipment stored for extended periods.

Regular Service;Maintenance

Schedule for regular burner service and maintenance.

Troubleshooting

Limited Warranty Information

Tire Information

Engine Manual

Air Compressor Manual

Stepp OJK-H series Specifications

General

Model	OJK-H series
Control System	PID controller with digital display
Insulation	Mineral wool
Exterior Material	Powder-coated steel
Interior Material	Stainless steel
Standard Sizes	Various sizes available
Safety Features	Over-temperature protection

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