PROCEDURES FOR CLEANING AND PRESERVATION OF MACHINE TOOLS THAT ARE CONNECTED TO POWER

TM 38-260

Where timing and alignment have not been accomplished, a tag will be attached to the machine stating that

this operation has not been performed.

4-7.

PROCEDURES FOR CLEANING AND PRESERVATION OF MACHINE TOOLS THAT ARE CONNECTED TO

POWER

Follow the cleaning procedures in paragraphs 3-3a through d.

NOTE

IF THE COOLANT SYSTEM IS OF SUCH A SIZE THAT IT

WOULD NOT BE ECONOMICAL TO FLUSH WITH THE

CLEANING FLUID SOLUTION THE COOLANT PUMP MAY

BE DISCONNECTED TO PREVENT OPERATION DURING

THE CYCLING PERIODS.

b. Hydraulic system. The hydraulic system shall be processed in accordance with paragraph 4-6f of this

technical manual.

c. Cycle the machine for approximately 15 minutes. The purpose of this operation is to bring the operating oils

to operating temperature and at the same time, cause contaminants to be held in suspension when these systems are

drained.

Immediately following this cycling period, drain all fluids from assemblies except the following:

(1)

Operating oil for large, closed-type hydraulic systems.

(2)

The flushing solution from cutting fluid systems.

e. Fill lubricators with preservative oil P- 10, grade 30, of table 2-1. Fill all assemblies that have been drained

(except lubricators) to operating level with solution A.

Cycle the machine to clean the internal assemblies filled with the flushing solution and at the same time test

the hydraulic systems for operating condition. This cycling period will continue as long as cleaning action is being

achieved by the cleaning solution. Leave the coolant outlet nozzle open to ensure free circulation of the solution through

the coolant system. During the cycling period, thoroughly test all hydraulic systems to determine if they function

properly.

g. Drain the solution from all assemblies, with the exception of gear and spindle housings, immediately

following the cycling period and after determination has been made that additional cleaning is not required.

Attach a tag to the machine with the following statement, as appropriate.

4-5