This repair manual is designed to act as a guide to Use............4 completing repair work on our sensor set. 3 General............5 The use of JOST spare parts is essential. Changes 4 Standard/special tools and auxiliary or modifications of any kind invalidate any warranty materials............6 claims and will lead to the component type approval Standard tools........
Safety instructions The relevant safety regulations in your country (Health & Safety at Work, for example) apply to work with sensor-enabled fifth wheel couplings and vehicles. The relevant safety instructions included in the vehicle and semi-trailer's operating instructions must also be complied with.
JOST fifth wheel couplings are specified to comply with Regulation ECE R55 in class 50 and may be used solely in conjunction with kingpins of class H50, steering wedges and mounting plates of class J, or comparable licensed equipment.
General Conversion work must be carried out by trained personnel in suitable workshops. Repair work must be carried out using suitable tools and state of the art methods. Instructions for assembly are indicated by a diamond (◊). The assembly is in reverse order if not described separately. The torque values shown in the illustrations are required for the subsequent assembly process.
Before replacing the locking sensor, all sensors must first undergo a function test to ensure that only the locking sensor is faulty. To do this, see the repair instructions "Replacing sensor set JSK 34/JSK 36/JSK 37/JSK 40/JSK 42". REP 007 005 EN- (REV--) 11/2019...
Repair work Removing cable fastenings and ATTENTION! connectors Worn, damaged and cracked parts must always be replaced. Repair welds must not be used. After completing the repair work, the entire fifth wheel coupling locking mechanism must be greased and its func- tion tested.
Installation is performed in the reverse order. ATTENTION! Only use a new lock bolt (33) and nut (35) for installation. ATTENTION! Also note the "Repair instructions for the JSK 34 fifth wheel coupling". JSK34_102 Removing contacts Position of locking sensor (1). 1/2´´ 1/2´´ Size 10...
Repair work Installation Unlock the second contact lock of the connec- tor. 6.5.1 Installing contacts To do so, insert a flat screwdriver into the hole provided. Light pressure moves the contact lock into the pre-detent position. JSK_12_056 ATTENTION! When inserting the contacts, make sure they are aligned correctly.
ATTENTION! When repair is complete, a function test of all sensors must be performed, see the repair instructions "Replacing sensor set JSK 34/JSK 36/JSK 37/ JSK 40/JSK 42". REP 007 005 EN- (REV--) 11/2019...
Disposal instructions Installed parts are valuable raw materials that can be recycled. They can be split into plastics, rubber and metal materials. Plastic and rubber are labelled in accordance with VDA recommendation 260. Before disposal, clean parts to remove any residual oil or grease.
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