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Summary of Contents for DURACLASS 1715
- Page 2 This warranty does not apply to any unit of DURACLASS equipment which shall have been repaired or altered outside of the DURACLASS so as to affect its stability or which has been subject to mis- use, negligence or accident or which shall have been installed or operated other than in accordance with the printed instructions of DURACLASS.
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Page 3: Table Of Contents
TABLE OF CONTENTS Page SAFETY NOTICE WARRANTY SECTION I — INTRODUCTION ...............1 Introduction....................1 Hoist Description...................1 SECTION II — OPERATING PROCEDURES........... 3 Safety Precautions.................3 Hoist Capacity..................3 Caution Decal Index................4 Storage Caution..................7 Lowering A Raised Dump Body............8 Operating Instructions ................. Power Take-Off Operation With Manual Transmission...............11 Power Take-Off Operation With... - Page 4 The information and specifications included in this publication were in effect at the time of approval for printing. DuraClass, Tishomingo, MS. reserves the right, however, to discontinue or change specifications or design at any time without notice and without incur-...
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Page 5: Section I - Introduction
INTRODUCTION This instruction manual has operation and maintenance information for DuraClass Model 1715, 1721, 1821 and 1824 HD single-acting and 1715 DA, 1721 DA, 1821 DA and 1824 DA-HD double-acting, twin-arm type hydraulic hoists. It's been prepared to acquaint you with the design features of the unit, and to instruct you in its proper operation and maintenance. - Page 6 Figure 1. Typical Single-Acting, Twin-Arm Hoist Figure 2. Typical Double-Acting, Twin-Arm Hoist...
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Page 7: Section Ii - Operating Procedures
Do not exceed hoist capacities shown. Excessive loads will result in dan- gerous operating conditions. HOIST LIFTING CAPACITY* HOIST BODY LENGTH MOUNTING CAPACITY BODY MODEL HEIGHT & PAYLOAD tons U.S. Metric 1715 2.438 13-3/8 12.0 2.743 14-3/8 10.5 3.048 14-3/8 1721 2.743 14-3/8 13.5 12.2... -
Page 8: Caution Decal Index
Familiarize yourself with all of the operating cau- tions before you operate the hoist. All decals must be kept clean and complete. Replace any decals which are unreadable. Decals may be procured from your authorized DuraClass Distributor. - Page 9 Figure 3. Caution and Warning Decal Location...
- Page 10 DO NOT OPERATE OR SERVICE THIS MACHINE UNTIL YOU HAVE READ AND UNDERSTAND THE OPERATION AND MAINTENANCE MANUAL SUPPLIED WITH THIS EQUIPMENT. MANUALS CAN ALSO BE OBTAINED FROM A DURACLASS DISTRIBUTOR. CAUTION THIS VEHICLE EQUIPPED WITH HOIST OPERATING LEVER LOCKOUT. HOIST CONTROL LEVER MUST BE ENGAGED IN NEUTRAL POSITION WITH LEVER LOCK.
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Page 11: Storage Caution
DO NOT dump on ground that has been recently excavated or filled with- out being properly compacted. Operator MUST REMAIN at the controls during the dumping cycle. Tailgate controls MUST BE released before the front of the body is 2 feet (0.6 m) above the chassis frame. -
Page 12: Lowering A Raised Dump Body
LOWERING A RAISED DUMP BODY PROCEDURE FOR LOWERING A RAISED DUMP BODY WHEN THE IN-CAB OPERATING CONTROLS BECOME IN- OPERATIVE OR IF RAISED DUMP BODY WILL NOT LOWER BECAUSE OF ANY OTHER REASON. NEVER ENTER BETWEEN A RAISED DUMP BODY AND CHASSIS FRAME AS IT MAY DESCEND AND CAUSE INJURY OR DEATH. - Page 13 Figure 4. Blocking the Body. Connect a chain or cable sling to an overhead crane, truck crane, large front end loader or other lifting device having adequate ca- pacity to safely hold and lower the body and load. Attach the chain or cable device with hooks, all of adequate lift rating, to the body rubrail just behind the front crossmember as shown.
- Page 14 10. Proceed to perform the repairs or replacement necessary to correct the control mechanism failure, or other malfunction, by qualified and trained personnel, such as your authorized DuraClass Distribu- tor. IF PROPER EQUIPMENT IS NOT AVAILABLE OR IF...
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Page 15: Operating Instructions
OPERATING INSTRUCTIONS POWER TAKE-OFF OPERATION WITH MANUAL TRANSMISSION CAUTION Disengage PTO when hoist is not in use or when traveling on the highway. Figure 6. Standard Hoist Controls To Engage Power Take-Off (PTO) Place transmission shift lever in NEUTRAL. Set hand brake. Depress clutch pedal. -
Page 16: Power Take-Off Operation With Allison Transmission
POWER TAKE-OFF OPERATION WITH ALLISON TRANSMISSION CAUTION Disengage PTO when hoist is not in use or when traveling on highway. Figure 7. Optional Flat Controls To engage Power Take-Off (PTO) Stop the truck and set the hand brake. With the Allison transmission in a gear position to provide a PTO output at 45 to 60% of engine speed, engage PTO. -
Page 17: Hoist Operation
HOIST OPERATION CAUTION Whenever traveling on the highway, the hoist control in cab must be in the neutral position with the hoist lever lockout engaged in the "lock" position and the PTO disengaged Figure 8. Optional Cable Control To Raise Body — With PTO engaged and truck engine running at a speed slightly faster than idle, release lever lock and move valve control in cab to RAISE position (rearward). -
Page 18: Traveling Instructions
TRAVELING INSTRUCTIONS Observe the following cautions when traveling with your truck. CAUTION Disengage PTO when hoist is not in use or when traveling on the highway. Do not move truck (loaded or unloaded) unless the body is lowered and resting on truck frame. CAUTION Whenever traveling on the highway, the hoist control in cab must be in the neutral position with the hoist lever lockout engaged in the... -
Page 19: Section Iii - Maintenance Instructions
SECTION III MAINTENANCE INSTRUCTIONS GENERAL Maintenance people whose job is to service and maintain this equipment should have a basic understanding of the equipment and normal sequence of operation. Refer to Sections I and II of this manual. Maintenance in this section is divided into two parts — Preventive Mainte- nance and Corrective Maintenance (Troubleshooting). - Page 20 Figure 9. Blocking the Body with Factory Installed Props CAUTION Whenever the body is in any elevated or raised position it must be securely propped or blocked so it cannot fall on anyone. The illustration above shows how to block the body using the props sup- plied with the hoist.
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Page 21: Preventive Maintenance Instructions
Refer to the illustration below for location of decals and part numbers if replacement is necessary. Decals can be procured through your authorized DuraClass Distributor. Figure 11. Decal and Serial Number Plate Location... -
Page 22: Weekly Maintenance- Lubrication
WEEKLY MAINTENANCE — LUBRICATION CAUTION When any work is to be done on body or hoist and body is fully or partly raised, body must have both props securely set or be blocked securely so it cannot fall. In addition, the HOIST control lever must be in neutral with the hoist lever lockout engaged in the "lock"... -
Page 23: Monthly Maintenance Checks
MONTHLY MAINTENANCE CHECKS CAUTION When any work is to be done on body or hoist and body is fully or partly raised, body must have both props securely set or be blocked securely so it cannot fall. In addition, the HOIST control lever must be in neutral with the hoist lever lockout engaged in the "lock"... -
Page 24: 6-Months Maintenance - Hydraulic Oil Change
6-MONTHS MAINTENANCE — HYDRAULIC OIL CHANGE CAUTION When any work is to be done on body or hoist and body is fully or partly raised, body must have both props securely set or be blocked securely so it cannot fall. In addition, the HOIST control lever must be in neutral with the hoist lever lockout engaged in the "lock"... -
Page 25: Trouble Chart
TROUBLE CHART Trouble Cause Remedy CAUTION When any work is to be done on body or hoist and body is fully or partly raised, body must have both props securely set or be blocked securely so it cannot fall. In addition, the HOIST control lever must be in neutral with the hoist lever lockout engaged in the "lock"... - Page 26 REMEDY Observe CAUTION above and check pressure in system. 1715 DA, 1721 DA, 1821 DA and 1824 DA-HD The double-acting hoists have a relief valve in the system. Discon- nect hose from base end of cylinder and plug cylinder port. Con- nect hose to a 0-3000 psi (0-20 684 kPa) pressure gage.
- Page 27 Minimum required pressures are as follows: MODEL PRESSURE 1715, 1721, 1821 1000 6 895 1824 HD 1500 10 343 1715 DA, 1721 DA, 1821 DA 1300 8 963 1824 DA-HD 1500 10 343 2a) Insufficient oil in: 2) Oil foaming 2a) Add oil as required: tank—double-...
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Page 28: Cylinder Repair
"lock" posi- tion and the PTO disengaged. For any major repair the cylinder should be returned to DuraClass Dis- trubutor. Repairs in the field should be limited to the replacement of packing which can be done without removing the cylinder from the truck. -
Page 29: Pump Repair
Keep dirt out of system. PUMP REPAIR Replacement parts for pump are available, although pump should be re- turned to your local DuraClass Distributor for any repairs beyond the replacement of seals and O-rings. CONTROL VALVE REPAIR Replacement parts for valve are available although valve should be re- turned to your local DuraClass Distributor for repairs beyond the replace- ment of seals and O-rings. - Page 31 MODEL AND SERIAL NUMBER DATA For your records fill in data below at the time warranty card is filled Owner _______________________________________________ Date Unit Put in Operation ________________________________ Address ______________________________________________ City _______________________State_______________________ Body Model ____________________Body P/N________________ Body Serial No.__________________Hoist Model _____________ Hoist P/N _____________________Hoist Serial No.
- Page 32 DURACLASS TRUCK EQUIPMENT DIVISION TISHOMINGO, MS...
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