Chapter 3. MAINTENANCE INSTRUCTIONS - TM-55-1915-200-100799

TM 55-1915-200-10

CHAPTER 3

MAINTENANCE INSTRUCTIONS

Page

Section I.

Lubrication Instructions. ................................ ................................ ................................ ................ 3-1

Section II.

Maintenance Instructions ................................ ................................ ................................ .............. 3-7

Section I. LUBRICATION INSTRUCTIONS

3-1. GENERAL. This Chapter contains all those

Prelubricate engine at a minimum of 69 kPA (10

lubrication instructions needed by the operator to help

psi) for a period of not less than three and not more than

keep the LSV in good running order. For additional

five minutes (approximately 57 1pm (15 gpm)).

lubrication instructions, refer to LO 55-1915-200-12.

e. While pressure is being applied, open cylinder

3-2. MANDATORY LUBRICATION INSTRUCTIONS .

test valves (FIGURE 3-2) and turn engine manually one

The following lubrication instructions are mandatory and

complete revolution.

Check all bearings at the

will be performed as scheduled. A separate lubrication

crankshaft, camshafts, rocker arms, and at the rear gear

order is not published for this equipment.

train for oil flow. Check for fluid discharge at the

cylinder test valves. If there is any sign of water or oil

3-2.1. Main Engine 16-645E6.

being ejected at the test valves, or any indication of

obstruction while rotating the engine, determine the

3-2.1.1. Prelubrication. (FIGURE 3-1)

cause before attempting to start the engine. Contact

unit maintenance if necessary.

a. Prelubrlication of a new engine, or an engine

f. On new or overhauled engines, close main

which has been inoperative for more than 48 hours is

lubricating oil prelubricating valve (1, FIGURE 3-1) and

necessary. Prelubrication protects unlubricated engine

open piston cooling prelubricating valve (2).

parts during the interval when the lube oil pump is filling

g. Operate priming pump (5).

Check for

the passages with oil.

unrestricted oil flow at each piston cooling oil pipe (2,

b. Open lube oil system priming valve (3) and

FIGURE 3-3).

operate priming pump (5) to fill lubricating oil system

h. Close cylinder test valves (FIGURE 3-2).

until strainer housing (7) is filled by oil draining from the

i. Pour a liberal quantity of oil over the cylinder

lubricating oil cooler (4). Strainer housing should be

mechanism of each bank.

filled until oil overflows into oil pan (6).

j. Check oil level in strainer housing (7, FIGURE

c. Close lubricating oil system priming valve (3).

3-1) and, if required, add oil to strainer housing until it

Check that main lubricating oil prelube valve (1) is open

overflows into the oil pan (6, FIGURE 3-1). (Check

and piston cooling prelube valve (2) is closed.

through square opening on top of strainer.)

d. Operate priming pump (5).

3-1