|
HATCH DOG BOLT REPAIR
THE TWO COMMON REPAIRS MADE TO WATERTIGHT HATCHES ARE THE REPLACEMENT OF DOG BOLT NUTS AND THE REPLACEMENT OF THE DOG BOLTS THEMSELVES.
DOG BOLT NUT REPLACEMENT
-
USING A 1/8" DRIVE PIN PUNCH, DRIVE OUT THE COLLAR RETAINING PIN.
-
REMOVE THE COLLAR AND NUT BY BACKING OFF THE NUT ALL THE WAY. THIS WILL PUSH THE COLLAR OFF THE DOG BOLT.
-
ATTACH A NEW NUT MAKING SURE THE BOSS (ROUNDED) SIDE IS DOWN.
-
REINSTALL THE COLLAR AND RETAINING PIN.
-
IF YOU DO NOT HAVE A RETAINING PIN, YOU CAN USE 1/8" DIAMETER BRAZING ROD. CUT IT 1/8" LONGER THAN NEEDED. AFTER YOU HAVE INSERTED IT, PEEN THE ENDS WITH A HAMMER.
DOG BOLT REPLACEMENT
-
USING A 3/32 OR 1/8 DRIVE PIN PUNCH, REMOVE THE RETAINING PIN FROM THE DOG PAD PIN.
-
WITH A COMBINATION SQUARE OR RULE, LOCATE AND CENTER PUNCH THE INSIDE OF THE HATCH COAMING AT A POINT OVER THE APPROXIMATE CENTER OF THE END OF THE DOG PAD PIN.
-
DRILL A 1/8" DIAMETER HOLE THROUGH THE COAMING.
-
INSERT A 1/8" DIAMETER PUNCH AND DRIVE OUT THE DOG PAD PIN.
-
REMOVE THE DAMAGED DOG BOLT.
-
INSTALL THE NEW DOG BOLT INTO THE SLOT IN THE DOG PAD. MAKE SURE THE PROTRUSION OR BULGE THAT IS FORGED INTO ONE SIDE OF THE BOTTOM OF THE BOLT FACES THE BACK OF THE SLOT IN THE HATCH COVER.
-
REPLACE THE DOG PAD PIN.
-
ALIGN THE HOLES FOR THE RETAINING PIN WITH THE HOLES IN THE DOG PAD PIN AND INSTALL THE RETAINING PIN.
-
WELD UP THE 1/8" HOLE PREVIOUSLY DRILLED IN THE COAMING WITH 1/8 DIAMETER E6010 OR E6011 ELECTRODE. DO NOT GRIND THE WELD FLUSH.
|
