MAC/MTT-OPS-1
26 FEB 2019
Appendix
MAC/MTT Operators Checklist
A-22
MAC/MTT-OPS(CL)-1
26 FEB 2019
11. Solenoid Control Box – CHECKED
COLD WEATHER OPERATION AND STORAGE
Ensure all water is drained from system when the
temperatures are expected to fall below 4.4°C (40°F)
for any period of time. Failure to ensure all systems
are drained and free from standing water will result
in ice formation, which will cause serious damage to
shaft, operator, diaphragm, drive motor, water pump,
or butterfly valve.
To ensure all water is drained from tank check the
following;
1. Park unit on a slight nose up angle to allow water
to flow to the rear of the tank.
2. Drain the tank using an appropriate method until
the Water Level Gauge reads EMPTY.
3. Open all drain petcocks (water pump, suction
load pump, rear spray bar, front spray bar, etc.).
4. Remove water pump sump cover.
5. Start engine.
N-21
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