MTZ 952.2 - Checking the operability of the glow plugs (Fig. 15)

Appendix
MTZ series 900
259
Checking the operability of the glow
plugs (Fig. 15)
If there are difficulties with starting the
engine in the winter period of operation:
There can be two types of faults in the glow
plugs: internal short circuit causing the fuse
to blow out, or open circuit.
The operability of the glow plugs can be
checked by means of an ohmmeter: the
resistance of the operable glow plug rated
at 12 V at the temperature of 20°С shall be
0.4-0.6 Ω and that of the plug rated at 24 V
at the temperature of 20°С – 2.0-2.5 Ω.
Fig. 15. Checking the operability of the glow
plug А2.
1 – Ohmmeter;
2 – Glow plug.