MSA 91385, 48733 User Manual
Adapter Kit
for skullgard cap and
welding helmet
MSA 903 (L) Rev. 14 © MSA 2009 Prnt. Spec. 10000005196(B) Mat. 470713
Doc. 470713
part no.
91385
48733
TO ASSEMBLE LUGS TO MSA MEDIUM AND LARGE SKULLGARD CAP
1. Select template from kit and follow layout instructions for location of right hand
(R.H.) lug on cap.
2. Support shell under area for new holes.
3. Mark holes as located on template with center punch and remove template.
4. Drill (2) two 5/32" diameter holes.
5. Attach lug to right side of cap with two self-tapping screws and backing plate,
items 6, 7, and 8 (Figure 1). Be sure foam pad is attached to lug before installation. Do not use bracket without foam pad.
6. Repeat above procedure for left side (Figure 2).
Installation of this kit on any ANSI/ISEA Z89.1-2009 and/or CSA Z94.1-2005,
Class E helmet or Class G helmet reduces the electrical insulation properties
to that of a Class C helmet which provides no electrical protection. Apply
Class C sticker provided with kit above existing ANSI label already on helmet
and cross out reference to Class E and/or Class G ON ALL
existing labels
(ANSI and/or CSA). Failure to follow the above can misrepresent the electrical protection and result in personal injury or death.
TO ASSEMBLE METAL INSTANT RELEASE BRACKET ASSEMBLY AND
FRICTION JOINT ASSEMBLY TO WELDING HELMET
1. Remove existing friction assembly or headgear from welding helmet.
2. Assemble instant release bracket assembly item 5 & friction joint assembly
items 1, 2 , 3, 4, 10 and 11 to welding helmet as per Figure 1. (Be sure to use
correct Left (L) and Right (R) instant release bracket.)
Note: Look closely at the internal tooth lock washer; be sure the lock washer has-
the smooth side down over the threaded stud on the bracket. The beveled
edge should be on top.
3. The adjustable stop (Item 9) is assembled to the left side of the welding helmet
in place of the large washer (Item 10) per Figure 2.
4. Assemble welding helmet to cap by inserting instant release bracket assembly
posts into lugs on cap.
5. Adjust tension to suit with friction joint knob.
2
MSA 903 (L) Rev. 14 - 470713
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