下列说明用于对2006年七月以前生产的美国保必丽可更换的自动、通用滚筒纸巾架模块3974-50进行升级改造，使其改造成美国保必丽ClassicSeries®纸巾架和垃圾箱组合柜（B-3944／B-3900），或其他制造商制造的类似产品
The following are instructions for retrofitting Bobrick's Convertible Automatic, Universal Roll Paper Towel Dispenser Module 3974-50 into a ClassicSeries® Paper Towel Dispenser/Waste Receptacle (B-3944/B-3900) produced prior to July 2006 and similar models from other manufacturers.
推荐工具
RECOMMENDED TOOLS
注意：请确保采用适当的工具
CAUTION: Be sure to use proper safety gear.
- 电钻。
Drill. - 现钻2mm直径的小孔（用来作为引导孔），再钻4mm直径的孔（用来钻出焊接孔）。
Drill bits 5/64 (used to make pilot holes), 11/64 (used to drill out welds). - 然后再钻22mm的孔（如果采用交流适配器，则用来产生直径更大的开孔）。
7/8 step bit (used to make a large opening when AC adapter is used). - 直径1.5mm或更小的钉子（用来将铰链销推出）。
.06" diameter nail or smaller (used to push hinge pin out).
- 中心冲孔（用来避免钻孔时电钻偏移）
Center Punch (used to keep drill bit from walking when drilling) - 带有切割轮的Hacksaw或Dremel品牌电动工具（用来切割门上的柱头螺栓）
Hacksaw or Dremel with cutting wheel (used to cut door check stud) - 锤子和凿子，或模铸撬棍（用来撬起去除没有完全钻出的焊屑）
Hammer and Chisel or Molding Claw Bar (to pry welds that are not fully drilled out) - 锉刀（用来锉平部件拆除后的表面）
File (to smooth the surface after removal of components)
提供的五金件
HARDWARE PROVIDED
• 7个6号1/2英寸宽的金属片垫圈螺丝
• 7 each #6 x 1/2" sheet metal wide washer screws
为了安装3974-50滚筒纸巾架输出装置，需要预先对组合柜进行处理。先拆除组合柜上方的所有部件，包括焊接部件，腾出必要的区域用于在组合柜内安装纸巾架输出装置。有关细节请参考B-3944安装说明。
The Cabinet is to be prepared for accepting the 3974-50 Roll Towel Dispenser by removing all components from the upper cabinet including welded parts to provide a clear area for installing the Dispenser into the cabinet. Instructions for the B-3944 are given in detail for reference.
升级改造步骤
RETROFIT PROCEDURES
- 打开纸巾盒的门。
Open towel cabinet door. 
卸下将门防盗链/缆（如果有配置的话）。
Remove nuts holding door check chain/cable. (if equipped).
卸下塑料或金属纸巾引导盘（如果有配置的话）。
Remove plastic or metal towel guide tray. (if equipped).- 卸下铰链销，把门去下。
Remove hinge pin and take off the door. 
切掉位于纸巾盒内部右上角的门防盗柱头螺栓（如果有配置的话）。
Cut off door check stud, located inside top right of cabinet. (If equipped).
重要提示：在进行下列升级改造步骤时有两种选择。
Important Note: There are two options when performing the following retrofit procedures.
选择一
Option 1
- 将这个设备从墙上卸下来。
Remove unit from the wall.
| 优点 Pros |
缺点 Cons |
|---|---|
| 容易清除焊缝 Easy to drill out welds |
如果由于拆卸会造成墙的损坏，则不适合采用这种方法。 May not be practical if wall will be damaged due to removal |
| 无需中间打孔 No center punch required |
|
| 不会钻透纸巾架后面的墙 No chance of drilling through a wall behind the cabinet |
|
| 允许安装人员采用其他安装方法 Allows installer to use other installation methods for module |
选择二
Option 2
- 把设备留在墙内。
Leave unit in the wall.
| 优点 Pros |
缺点 Cons |
|---|---|
| 钻孔采用直立方式，更加符合人体工程学要求 Drilling standing up is more ergonomic |
需要倾斜钻孔 Requires drilling at angles |
| 需要进行中心钻孔 Requires the usage of a center punch |
|
| 在清除焊缝时有可能会钻穿后墙 Chance of drilling through back wall when drilling out welds |
- 从墙上把设备拆卸下来。（如果这是您的选择）。
Remove unit from wall. (if this is the option you selected) - 清除焊缝。
和安装在墙内相比，拆卸下来的设备能够更迅速清除焊缝。
Drill out welds.
Welds are quicker to drill out when the unit is removed versus installed in the wall.
清除所有纸巾盒和引导焊缝。
Drill out all the towel tray and guide welds.- 清除所有铰链半焊缝。
Drill out all the hinge half welds.
清除所有门挡焊缝。
Drill out all the door stop welds.