Grate Drive Mechanics Jams - Viessmann Vitoflex 300-RF 150 Service And Maintenance Instructions

Vitoflex 300-RF Service & Maintenance

Grate Drive Mechanics Jams

Grate drive mechanics are no longer running causing cinders to accumulate on the grate.
Grate drive
mechanics jammed
Check electrical
triggering system
Check shear-off pin
Clean the connecting
rod and bronze bearing
Check grate
Check grate factory settings

Set the system to "Cleaning", this
causes the grate drive motor to run
continuously.

Check that the shear-off pin on the
connecting rod is OK.

Check that a spare shear-off pin is
present.

Cleaning of the connecting rod and
of the bronze bearing by means of
grease removers.

Check grate for foreign material.

Are all grate components properly inserted?

Lateral play - sliding grate for the concrete;
 
/ /
3 " 1 " (5 1 mm) (applies up to RF 300)
16 32
 
/ /
" " (8 2 mm) (applies up to RF 400/540)
5 1
16 16

Crank axle distance;
RF 100/150 1 "(35 mm)
e
/
RF 220/300 2 " (55 mm)
5
32
/
RF 400/540 3 5 " (80 mm)
32

Setting, stop position, sliding grate "back" crank drive right in
the back - movable grate components, front approx.
(2-4 mm) play (adjustment via threaded rod)

Setting, movable grate components, "front" crank drive right
in the front - movable grate components, front project approx.
/
" (8 mm) beyond the fixed parts and have approx.
5
16
(2-4) mm play (adjustment via adjusting screw at the bottom
on the grate).
Troubleshooting
/ - /
1 " 5 "
16 32
/ - /
" "
1 5
16 32
21