Osburn Horizon OB04010, Installation And Operation Manual

Page: 72 / 80

72 HORIZON – Installation and Operation Manual
APPENDIX 7 – AIR CONTROL SNAP DISC REPLACEMENT
1. Remove the inner ash retainer and the floor
refractory slab
(A & B)
.
2. Using a power screwdriver and hex tip 5/16",
remove the slab holder
(D)
and the left refractory
slab
(C)
.
3. Remove the 4 bolts
(E)
holding the access door
(F)
with a 1/4" ratchet.
4. Remove the thermodisc
(H)
by unscrewing the 2
screws holding it in place
(G).