Sunmax RT15 - Routine Maintenance and Replacement of Wearing Parts; Preparation; Before the Work; During the Work

Chapter I I
Routine Maintenance and
Replacement of Wearing Parts
3.1 Preparation
 Choose the most suitable detergent and the appropriate concentration of
detergent according to the state of the ground. In general, only two
disposable cups of detergent are needed. Reduce the amount of detergent
used to protect the environment and use neutral low-foaming detergent.
Use defoamer at the same time in order to eliminate foam in the water
tank and extend the service life of the water suction motor.
 Add detergent from the front water filling port, then fill the clean water
tank with clean water.
 If you want to get water from the tap with a hose, you can plug the hose
directly into the water hole on the side of the machine. However, pay
attention to the water level to prevent an overflow of the detergent.
3.2 Before the work
 In the area that needs cleaning, first sweep the floor to eliminate large
sundries and dust, and make sure that the ground is free of mud, stone
pieses and paper scraps. This will boost your work efficiency and help
you protect the machine.
 Turn on the general swtich, check the battery level and make sure that it
has sufficient power before starting the work.
3.3 During the work
The batteries must be charged in the case of low power!
 Turn the forward/backward switch to the forward gear, start the brush
plate motor, water suction motor and switch button in sequence and use
the water volume adjusting handle to control the flow of clean water.
 On the uneven ground, there might still be water after cleaning. In this
case, you can raise the brush plate, start the water suction motor, push
the machine and absorb water in the water area. Note that the water
suction efficiency will be affected if there are deep grooves on the
ground, and this problem can only be dealt with separately.
Problems that you may encounter when adjusting the squeegee:
When using the machine, if you feel that the water suction motor is abnormal
and the squeegee cannot absorb water or the sound of the squeegee is
abnormal, stop the work immediately to carry out an inspection.
1. If the water level has risen to the highest position, the float ball rises and
the air passage is cut off, please remove the sewage tank, open its cover,
discharge the sewage, and wash the sewage tank.
2. If the water level in the sewage tank is not high and there is no excessive
foam, it is very likely that the joint between the squeegee and the pipe is
blocked, and it will return to normal after being cleaned.
3. If the water level in the water tank is not high but there are too much
foam, it is likely that you have added too much detergent or you have
used high-foaming detergent. In this case, add an appropriate amount of
defoamer to the sewage tank.
4. If the three solutions above do not work, unplug the suction pipe on the
squeegee, start the water suction motor and check by hand whether the
suction at the air inlet is normal. If the suction force is too small, check
whether the squeegee connecting pipe is blocked.
3.4 Replacing the brush plate
 Put the brush plate to be installed under the brush plate cover (in the case
of a needle plate, add the scouring pad first). Put down the brush plate
and align the plate head with the bayonet.
 Turn on the switch button of the brush plate motor, and the brush plate
will be automatically installed with the rotation of the motor. The brush
plate can also be manually installed or removed.
 For unexperienced users, it is recommended to install or remove the
brush plate manually: raise the brush plate first after finishing the work,
turn off the brush plate switch, the brush plate motor will be stopped and
you can remove the brush plate by rotating it.
3.5 Replacing the batteries
 Turn off all the switch buttons.
 Open the buckle of the batteries, disconnect the battery cable and
remove the batteries separately.
3.6 Maintenance and replacement of the squeegee
The squeegee is an important part of the machine, and it will be worn due to
friction with the ground. When the water absorption efficiency is low, check:
 If there is any debris in the plastic scrapper;