Cooling System Accessories; Main Water Tank - Zontes ZT350T-D Maintenance Manual

Before reassembly, the joint surface should be cleaned. Note that the O-ring cannot be missing and must be correctly
assembled in place. The hoop should be clamped inside the boss to prevent loosening. Bolt⑵ Torque: 12±1.5 N.m (1.2±0.2
kgf.m, 9±1 lbf.ft).

Cooling system accessories

Caution:
●Special ventilation tooling (gas pressure reducing valve, air gun, sealing tube) is required for testing.
●After the soaking inspection is completed, the water stains should be wiped clean in time, or use a dust blower to blow dry. If
the main water tank and the small water tank are blown dry by blowing dust loose, the wind pressure should not be too large
and should be far away from the radiating fins to avoid damage or deformation of the radiating fins.
●Except the gas pressure is specified when doing the air tightness test, the compressed air of 160kPa (1.63 Kgf/cm2, 23.2 psi)
shall be introduced, and the parts shall be immersed in water and left for 10s without bubbles. If there are bubbles, the air leaks
and needs to be replaced.
●The heat dissipation fins are allowed to have a small amount of lodging deformation. If the lodging area is too large, it will
affect the heat dissipation effect, and it is recommended to replace it. A small amount of deformation can be corrected with a
small flat-blade screwdriver.
●It is forbidden to use high-pressure water gun or high-pressure air to directly flush or blow the heat sinks of the main water
tank and the small water tank.
●Before further testing, check the appearance for signs of leakage. If there is a slight leakage, try to repair it, otherwise it should
be replaced.

1. Main water tank

Check whether the cushion rubber is aging and cracked.
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