Blocking and Bracing of IPE (Cont)

TM 38-260

(5) MIL-HDBK-701 provides detailed methods for internal blocking and bracing of various machine tools. These

detailed procedures for specific machine tools furnish general guidance applicable to most types of equipment.

(6) A representative example of the internal blocking and bracing required for an engine lathe is as follows (see

(a) Manufacturer: Boye and Emmes Machine Co. Model "E".

(b) Approximately-weight. Machine 12,500 pounds (5,670kg), primary skid 310 pounds (141kg), and accessory

skid 111 pounds (50kg).

(1.52m) feet. Item 1 is a 2 (51mm) by 4 inch (102mm) wood block, cut to fit, and is placed on each way between the

spindle housing base and the cross slide. Item 2 is a 2 (51mm) by 4 inch (102mm) wood block, cut to fit, and is placed on

each way between the cross slide and tail stock. Item 3 is a 2 (51mm) by 4 inch (102mm) wood block, cut to fit, and is

used to hold down the wood blocks of items 1 and 2. It is placed across the top of the two blocks under the way casting

with a one-half inch steel rod. Item 4 is a 4 (102mm) by 4 inch (102mm) wood block, cut to fit, and is placed under the

way casting. Item 5 is a 4 (102mm) by 4 inch (102mm) wood block, cut to fit, and is placed at the tailstock base. Wood

blocks called out in items 4 and 5 have a 2 inch (51 mm) bevel on one side and are bolted together with two one-half inch

steel rods using 1/4 by 3 inch (76mm) steel plates and lock washers.

(d) Buttress blocking. Figure 8-1 shows the lathe buttress blocked for motor shipment.

Item 6 consists of two 4 (102mm) by 6 inch (152mm) wood blocks, cut to fit, and are placed between the machine base

casting and the header at one end of the skid assembly. Item 7 is a 4 (102mm) by 6 inch (152mm) wood block, cut to

length, and is placed between the base casting and the header on the tail base end of the assembly.

(e) Parts and accessories. Item 8 is an accessory skid assembly on which the spindle drive motor and face plate

are secured to the accessory beams with four L-brackets.

8-9