Liebherr pr722b series 2 litronic crawler dozer service repair manual

Page 89

2.2. Crimping Before crimping, insulate the ends of the wire with a suitable tool - see section 02.1.31. 8 mm on 0.75 – 1.50 mm contacts 6 mm on 2.50 mm contacts Note:

The cable wires must be visible in the control bore. All cable wires must be caught in the crimping point. The insulation must reach the contact.

Insert the cable with the contact into the pre-set tool. Push the tool together, quickly and all the way. Pull the cable with the crimped contact from the tool and check the crimping. Note:

The tool can only be opened when the cable is crimped completely.

2.3. Installation of pin contacts - plug section on instrument panel

Set the plug section, pos.1 into the instrument panel. Set the pin contacts, pos.3 in to the contact base, pos.2. Screw the base with the plug section, pos.1.

2.4. Installation of bushing contacts / plug section central wiring harness Push the shrink fit sleeve or shrink fit part over the cable before installation of the contact base . Push the clamping section, pos.5, rubber seal with washers, pos.4, screw fitting, pos.3 and plug housing, pos.1 over the cable. For installation of contacts, use insertion tool, see section 02.1.31. Insert the bushing contacts into the contact base, pos. 2, screw the base together with the housing, pos. 1. Caution: The cables can be stuck / damaged when connecting. Screw the screw fitting, pos. 3 into the plug housing and tighten. Insert the rubber seal with washers and attach wiring harness with clamping section on the plug housing, pos. 1. Note:

Do not use damaged parts. Make sure all parts are positioned correctly, check corresponding plug illustrations (see section 9.2). Visually check the installation position of the contacts, route the cable free of tension.

2.5. Sealing Push the shrink fit sleeve over the clamping section, pos.5 and push in the screw fitting, pos.3 and use a hot air blower to heat evenly until the sleeve is shrunk in place. Note: Do not heat the components of the screw connection above 125°C ( 257°F). 2.6. Removal of pin and bushing contacts For removal, use removal tool, see section 02.1.31. Push the removal tool over the pin or bushing and loosen the lock, push the contacts out.


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