Chapter 8 — Inspection and Maintenance
Part No. 750-184
8-25
Door bolts should be run in snug and tightened evenly to avoid cocking the
door and damaging the gasket. Start tightening at top center and alternate
between the top and bottom bolts until both are tight. Do not overtighten.
Tighten alternate bolts until the door is secured and gas tight. After the boiler
is back in operation, retighten the bolts to compensate for any expansion.
Loosen the nut on the davit stud to release tension from the davit arm.
U. REFRACTORY
The boiler is shipped with completely installed refractory. The refractory
consists of the cast dry oven, furnace liner, and the rear door. Normal
maintenance requires little time and expense, and prolongs the operating life
of the refractory.
Preventive maintenance through periodic inspection will keep the operator
informed of the condition of the refractory, and will guard against unexpected
and unwanted downtime and major repairs.
Frequent wash coating of the refractory surfaces is recom-mended. High-
temperature-bonding, air-dry type mortar, diluted with water to the
consistency of light cream, is used for wash coating. Recoating intervals will
vary with operating loads and are best determined by the operator when the
boiler is opened for inspection.
Furnace Liner
Maintenance consists of occasional wash coating of the entire liner. Face all
joints or cracks by applying high temperature bonding mortar with a trowel
or fingertips. Wash coating should be done as soon as cracks are detected.
Should segments of the liner burn away or fall out, replace the entire
refractory. Any refractory that may break out should be removed as soon as
detected so that it will not fuse to the bottom of the furnace and obstruct the
flame.
If replacement is necessary, refer to Chapter 9
and order proper replacement
materials. Remove existing refractory. Thoroughly clean the furnace to
remove all old refractory cement or other foreign material to ensure the new
liner seats firmly against the steel. Inspect the furnace metal.
Depending upon the design pressure of the boiler, the furnace may be of the
corrugated type. It is necessary to fill in the corrugation valleys under the
furnace liner tile from 4 o’clock to 8 o’clock with insulating cement. The liner
tile should be fitted tightly against the crown of the corrugation.
Notice
Note: The area between the dry oven and the throat tile
requires a good seal. An improper or poor seal allows air
leaks that can cause overheating and burning of the dry
oven. The area should be inspected semi-annually. Contact
your local Cleaver-Brooks representative for information
and service.
Summary of Contents for CB Ohio Special 100 HP
Page 2: ...ii ...
Page 8: ...viii ...
Page 42: ...Chapter 2 Burner Operation and Control 2 22 Part No 750 184 ...
Page 116: ...Chapter 6 Adjustment Procedures 6 28 Part No 750 184 ...
Page 126: ...Chapter 8 Inspection and Maintenance 8 6 Part No 750 184 ...
Page 153: ...Chapter 9 Parts Part No 750 184 9 3 Insulated Front Head Model CB LE ...
Page 154: ...Chapter 9 Parts 9 4 Part No 750 184 Insulated Front Head Interior Model CB LE ...
Page 155: ...Chapter 9 Parts Part No 750 184 9 5 Insulated Inner Door Model CB OS ...
Page 156: ...Chapter 9 Parts 9 6 Part No 750 184 Insulated Rear Head CB LE ...
Page 157: ...Chapter 9 Parts Part No 750 184 9 7 Insulated Rear Head CB LE ...
Page 158: ...Chapter 9 Parts 9 8 Part No 750 184 Insulated Rear Head CB OS ...
Page 159: ...Chapter 9 Parts Part No 750 184 9 9 Dry Oven Model CB LE ...
Page 161: ...Chapter 9 Parts Part No 750 184 9 11 Motor Impeller Model CB LE ...
Page 162: ...Chapter 9 Parts 9 12 Part No 750 184 Front Head Linkage ...
Page 170: ...Chapter 9 Parts 9 20 Part No 750 184 Control Cabinet Hawk ICS ...
Page 171: ...Chapter 9 Parts Part No 750 184 9 21 Control Panel Standard ...
Page 172: ...Chapter 9 Parts 9 22 Part No 750 184 Entrance Box ...
Page 173: ...Chapter 9 Parts Part No 750 184 9 23 Front Head Electrical CB LE ...
Page 174: ...Chapter 9 Parts 9 24 Part No 750 184 Front Head Electrical CB LE ...
Page 175: ...Chapter 9 Parts Part No 750 184 9 25 Front Head Electrical CB OS ...
Page 176: ...Chapter 9 Parts 9 26 Part No 750 184 Front Head Electrical CB OS ...
Page 179: ...Chapter 9 Parts Part No 750 184 9 29 Heavy Oil Piping 60 Steam CB LE ...
Page 180: ...Chapter 9 Parts 9 30 Part No 750 184 Heavy Oil Piping 60 Steam CB LE SEE TABLE NEXT PAGE ...
Page 181: ...Chapter 9 Parts Part No 750 184 9 31 Common Oil Parts Heavy Oil ...
Page 182: ...Chapter 9 Parts 9 32 Part No 750 184 Side Mounted Air Compressor Piping ...
Page 183: ...Chapter 9 Parts Part No 750 184 9 33 Air Compressor Piping CB OS ...
Page 185: ...Chapter 9 Parts Part No 750 184 9 35 Light Oil Piping ...
Page 186: ...Chapter 9 Parts 9 36 Part No 750 184 Light Oil Air Piping Front Head ...
Page 187: ...Chapter 9 Parts Part No 750 184 9 37 Light Oil Air Piping Front Head PAGE 9 31 ...
Page 191: ...Chapter 9 Parts Part No 750 184 9 41 Gas Train 125 150 HP ...
Page 193: ...Chapter 9 Parts Part No 750 184 9 43 Gas Train 200 HP ...
Page 195: ...Chapter 9 Parts Part No 750 184 9 45 Steam Pressure Controls ...
Page 196: ...Chapter 9 Parts 9 46 Part No 750 184 Hot Water Temperature Controls ...
Page 197: ...Chapter 9 Parts Part No 750 184 9 47 Water Column ...
Page 198: ...Chapter 9 Parts 9 48 Part No 750 184 Water Column ...
Page 199: ...Chapter 9 Parts Part No 750 184 9 49 Fireside Gaskets CB LE ...
Page 200: ...Chapter 9 Parts 9 50 Part No 750 184 Fireside Gaskets CB OS ...