Ebasto Air Top Evo 3900 Workshop Manual - page 44
9 Repair
Air Top Evo 3900/5500
902
9.2
Dismantling and assembling
9.2.1 Remove the casing parts
9.2.1.1 Cover for electrical connection
The cover (1, Fig. 901) can be levered off using a blunt
blade in the areas marked “X”.
9.2.1.2 Grate for hot air inlet and outlet
The grate (6, fig. 901) can be released from its mounting
by twisting it and then pulled off forwards.
9.2.1.3 Covers for hot air inlet and outlet
Both covers (3 and 5, fig. 901) can be released from their
mountings and removed by pressing the four detents at
the top and bottom using a suitable tool.
9.2.1.4 Top shell
NOTE
The covers for the hot air inlet and outlet must have been
removed.
The top shell (2, fig. 901) can be raised after the covers for
the hot air inlet and outlet have been removed.
9.2.1.5 Bottom shell
Remove the seal from the exhaust outlet.
NOTE
The insulating mat (7, fig. 901) is only fixed on the heater
by the casing parts.
By pulling the bottom shell (4) on both sides gently around
areas “Y”, you can release the fixing and the shell can be
taken off the motor casing.Take the insulating mat off (7)
at the same time.
9.2.2 Fit the casing parts
9.2.2.1 Bottom shell
IMPORTANT
To ensure that the heater and the overheating sensor
work perfectly, please note the following when fitting the
casing:
•
Position the insulating mar (7, fig. 901) so that half
of the width of the mat is under the shells (4 and 2)
or under the cover for the hot air outlet (3).
•
When you fit the top shell (2) ensure that the
insulating mat is secure.
•
If the insulating mats are heavily pressed or old,
replace them
1. Ensure that the insulating mat (7) is properly
positioned on the heat exchanger.
IMPORTANT
When you fit the bottom shell (4), spread it slightly so that
the spacers on the overheating sensor (9, fig. 902) are not
damaged.
2. Expand the bottom shell (4, Fig. 901) slightly at the
side and fit it to the heater from underneath until the
securing pins on the heater engage in the holes in the
shell.
3. Fit a new seal on the exhaust outlet.
9.2.2.2 Top shell
Place the top shell (2, fig. 901) on the heater and secure
it in the grooves in the bottom shell.
9.2.2.3 Cover for hot air inlet and outlet
NOTE
The covers for the hot air inlet and outlet are different.Fit
the cover with the larger opening at the front on the hot air
blower.
Push on the covers (3 and 5, fig. 901) until the four
securing holes engage properly in the detents on the
bottom and top covers.
9.2.2.4 Grate for hot air inlet and outlet
Fit the grates (6, fig. 901) on the covers for the hot air inlet
and outlet and twist them to secure them.
9.2.2.5 Cover for electrical connection
NOTE
The wiring harness is to be taken out of the left or right of
the heater to suit the installation situation.
Fit the cover (1, fig. 901) until it audibly engages in the
top cover.