SEQUENTIAL CLEANING AND PRESERVATION PROCEDURES

TM 38-260

(5) Main external electric motor feedlines shall be disconnected at respective terminal blocks or junction boxes.

Disconnected wiring shall be tagged or otherwise identified to aid reassembly. Under no circumstances will motor wiring

be cut behind terminal or junction connections. Machine control wiring shall not be disconnected unless required for

shipment. If continuity is disturbed, proper identification shall be made.

(6) Tension shall be relieved on drive belts or the belts can be removed and attached to the machine. In the

event the drive motor must be removed for safe shipment, all removed drive belts shall be processed in accordance with

(7) Electric motor brushes shall be removed, thoroughly cleaned, and packed in accordance with MIL-P-116,

submethod C-1. Attach a tag to the motor indicating that the brushes have been removed. Badly worn or chipped

brushes shall be replaced. The packaged brushes may be attached to the motor or boxed with other component parts of

the machine. All items shall be identified and marked in accordance with MIL-STD-129.

(8) Fixtures attached to tables and other machined surfaces shall be removed and mating surfaces cleaned

with cleaning solvent conforming to P-D-680, type II, dried and preserved with preservative compound, P-2, P-3, P-19,

or- P-21, table 2-1. If removed items are not returned to the machine, wrap with barrier material conforming to MIL-B-

121, grade A. Items shall be cushioned, boxed and stored with the basic machine. Packing lists shall be prepared for

boxed items and shall be marked and identified in accordance with MIL-STD-129. Previously unremoved shank and

socket type tooling shall be removed to permit similar type cleaning and preservation of mating surfaces.

(9) Items such as standard accessories and spare parts to be retained with the basic machine shall be cleaned

with cleaning solvent conforming to P-D-680, type II, dried, and preserved with preservative compound P-2, P-19, or P-

21 of table 2-1. Items not returned to the machine shall be wrapped with barrier material conforming to MIL-B- 121,

grade A, boxed, and shipped with the basic machine. Packing lists shall be prepared for all boxed items. All markings

shall be in accordance with MIL-STD-129.

(10) Precision dial measuring instruments shall be cleaned with cleaning solvent conforming to P-D-680, type

II, taking care to avoid contamination of internal surfaces. Removal of fingerprints and drying shall be in accordance with

chapter 2. All items shall be preserved with preservative oil P-9 of table 2-1, wrapped with barrier- material conforming

to MIL-B- 121, grade A, and packed in accordance with MIL-P- 116, submethod IA- 15 or C-1. Packaged items shall be

cushioned, boxed, and shipped with the basic machine. Micrometers, height gages, verniers, scales, plugs, ring, and

snap gages shall be preserved with preservative oil P-9 of table 2-1 and wrapped in barrier material conforming to MIL-B-

121. In lieu of preservative oil and barrier materials, certain gages and plugs can be packed in accordance with MIL-P-

116, submethod IB- I or IB-2. Care shall be exercised to prevent cleaning or preservative materials from entering the

internal parts of the items. Packing lists shall be prepared for all boxed items and markings shall be in accordance with

MIL-STD-129.

4-34