Infiniti QX4 service since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment
12.1. Specifications
12.2. Search of causes of failures of electric equipment
12.3. Electric sockets - general information
12.4. Safety locks and fusible inserts - the general information
12.5. Chain breakers - the general information
12.6. The relay - the general information and check of serviceability of functioning
12.7. Check of serviceability of functioning and replacement of the breaker of indexes of turns / alarm system
12.8. Replacement of lamps of lighting devices
12.9. Check of serviceability of functioning and regenerative repair of a heater of back glass
12.10. System of additional safety (SRS)
12.11. Schemes of electric connections
 












12-9-proverka-ispravnosti-funkcionirovaniya-i-vosstanovitelnyjj-remont-obogrevatelya-zadnego-stekla.html

12.9. Check of serviceability of functioning and regenerative repair of a heater of back glass

The working element of a heater of back glass represents a horizontal lattice from the tokoprovodny threads pasted on an internal surface of glass. A food on a heater moves through a big safety lock from the block of distribution of capacity located in an impellent compartment of the car. Inclusion of a heater is made by means of the switch located on the dashboard of the car.

Small breaks of tokoprovodny threads of a lattice of a working element of a heater can be eliminated without dismantle of back glass.


Check

 PERFORMANCE ORDER

  1. Include ignition and a heater of back glass.
  2. Press positive щуп the voltmeter to the positive plug of a lattice of a heating element, negative щуп press to the negative plug. The device should register tension of the battery, otherwise check a condition of a safety lock, the switch and connecting electroconducting. If tension in norm, however, a part of a heater does not work. Pass to the following stage of check.
  1. To measure tension during described below checks wind positive щуп the voltmeter with a metal foil which it is easy then a finger will press directly to a tokoprovodny thread of a lattice of a heating element. Negative щуп a measuring instrument connect to the negative plug of a lattice.
  1. Measure tension in the central part of each of lattice threads. The indication in 5 — 6 In testifies to serviceability of a condition of a thread. The zero indication speaks about break existence between the center of a thread and a positive side of an element. Indication overestimate twice (10 — 12 In) occurs in the presence of break between the center of a thread and a negative side of an element. Serially check each of lattice threads.
  1. In the absence of breaks connect negative щуп to mass of the chassis and repeat check — indications should not change, violation of quality of grounding of a lattice otherwise takes place.
  1. For localization of break press negative щуп the voltmeter to the negative plug of a lattice of a heating element. Wrapped up by a foil positive shchupy start to probe tokoprovodny threads of a lattice, moving from food giving to weight. Instrument reading should fall in a break point from several volts to zero.


Regenerative repair

Restoration of integrity of tokoprovodny threads is made by means of a special remnabor of the Dupont 4817 type. The basis of a set is made by the tokoprovodny epoksidny paste delivered complete with a hardener.

 PERFORMANCE ORDER

  1. Before starting regenerative repair of a lattice of a working element switch off a heater and let's to an element cool down within several minutes.
  2. Slightly smooth out the damaged site of a thread felt, then carefully wipe it alcohol.
  3. Paste two strips of an adhesive tape along a subject to restoration of a site of a thread.
  4. Carefully mix epoksidny paste with a hardener (follow instructions enclosed in a set).
  1. Put the received structure on the damaged site (with a tipping over approximately in 20 mm on regions of the intact thread).

Final polymerization of a compound occurs in 24 hours after which protective strips of an adhesive tape can be removed from glass.


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12.8. Replacement of lamps of lighting devices
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12.10. System of additional safety (SRS)