MEGA Corp. MTT-OPS-1 - Manual (Page 33)

MTT-OPS-1
13 Nov 2013
SECTION 4
Normal Operations
4-6
9. Start chassis engine.
10. At LOW IDLE turn SYSTEM/POWER switch ON.
11. (DiSCS Only) AUX2 - ON
12. Turn PUMP Switch – ON
Engaging/disengaging the water pump above
LOW IDLE may result in water pump component
damage and reduced service life.
13. Increase engine RPM to HIGH IDLE.
When unit is full of water
14. Reduce engine RPM to LOW IDLE.
15. PUMP Switch – OFF
Engaging/disengaging the water pump above
LOW IDLE may result in water pump component
damage and reduced service life.
16. AUX2 - OFF
17. SYSTEM/POWER Switch OFF.
18. Turn engine OFF.
19. Disconnect, drain and stow suction hoses.
AFTER OPERATIONS
These procedures are used to perform a walk-around
inspection after using the MEGA water tanker
systems. This inspection is in addition to and does
not replace the vehicle manufacturer’s inspection
requirements.
1. Vehicle parking brake – ON
2. Cab Control Switches – SET OFF
3. Chocks – As Required
4. Water Cannon – CHECKED & SECURED
5. Vehicle Hydraulic Tank - CHECKED
6. Tank Lines and Hoses – SECURED
7. Tank Drain Petcocks – As Required.
8. Spray Heads – SECURED & SET
9. Water Pump – CHECKED
a. Water Pump – Check for damage and volute
case drain valve set as required.
10. Hose Reel – CHECKED
11. Solenoid Control Box – CHECKED
COLD WEATHER OPERATION AND STORAGE
Ice will cause serious damage to water pump, spray
heads, butterfly valves and the monitor if water is
allowed to remain in the volute case, water piping or
on top of a closed butterfly valve and freeze. Ensure
all water is drained from system when the
temperatures are expected to fall below freezing for
any period of time. Failure to ensure all systems are
drained and free from standing water will result in
shaft, operator, diaphragm, drive motor, water pump
or butterfly valve damage when operation is
attempted with ice in the housings.
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.