Cooling and Lubrication System Maintenance Part 7 ppsx

Change the hard time intervals If your lubricants are contaminated or if you are operating the equipment under ad- verse operating conditions, Including longer- than-usual operating

JANUARY 1990

LUBRICATION INSTRUCTION LI 2320-12/9A

TRUCKS, 8 X 8 LOGISTICS VEHICLE SYSTEM (LVS)

POWER UNIT, FRONT ,4 X4, MK48

(NSN 2320-01-177-5167) TRAILER, POWERED, CONTAINER HAULER, 4 X 4, MKi4

(NSN 2320-01-176-0469) TRAILER, POWERED, WRECKER/RECOVERY 4 X4, MKi5

(NSN 2320-01176-6928) TRAILER, POWERED, FIFTH WHEEL, SEMI-TRAILER ADAPTER 4 X 4, MK16

(NSN 2320-01176-0467)

TRAILER, POWERED, DROPSIDE, CARGO W/CRANE 4 X4, MKi7

(NSN 2320-01-176-0468) Reference: TM 2320-10/11, TM 2320-20/12, and TM 2320-34/13

Intervals (on condition or hard time) and re-

lated man-hour times are based on normal

operation The man-hour time specified is the

time you need to do all the services prescribed

for a particular interval On Condition (OC) oll

sample intervals shall be applied unless

changed by the Army Oil Analysis Program

(AOAP) Laboratory Change the hard time

intervals If your lubricants are contaminated or

if you are operating the equipment under ad-

verse operating conditions, Including longer-

than-usual operating hours The hard time

interval may be extended during periods of low

activity If extended, adequate preservation

precautionsmust be taken Hard time intervals

will be applied in the event AOAPlaboratory

support is not available

intervals shown in this lubrication instruction

arebased on mileage andcalendar times An

example of a mileage and calendar lubrication

is 3/S, in which 3 stands for 3,000 miles and S

stands for semi-annually The lubrication is to

be performed at whichever interval occurs first

for the vehicle

On ancillary equipment, the hour interval Is

estimated hous of operation, not actual en-

gine hours that appear on the hourmeter

Dotted arrow points Indicate lubrication on

both sides of the vehicle or equipment

CLEANING Clean fittings before lubricating Clean parts with dry cleaning solvent (SD) type Il or equivalent Dry before lubricating

LEVEL OF MAINTENANCE The lowest level

of maintenance authorized to lubricate a point

is indicated by one of the following: Operator/ crew (C); and Organizational Maintenance (O)

LUBRICANTS Lubricanttypes and operating temperature ranges are given within the key

on Cards 2 and 3 When changing or applying lubricans, be sure to follow the recommended temperature ranges for those lubricants AFTER FORDING Lubricate all fittings below fording depth and check submerged gear boxes, engine, and transmission for presence

of water

AFTER HIGH PRESSURE WASHING §Lubri- cate all grease fittings and oll can points out- side and underneath vehicle

LOCALIZED VIEW A reference to the appro- priate localized view Is given after the lubrica- tionentry in most cases.Localized views begin

on Card 13

Fig 3-26 Lubrication order cover/instruction page

3-27

As you can see, the cover page contains some very important

information You should read it before you perform a lubrication service on a particular piece of equipment for the first time

b Key Just like any good map, the lubrication order includes

a "Key" to aid in its use (fig 3-27) Before you look at the key, let's see what type of information it contains

Table 3-1 Explanation of Lubrication Order Key

Lubricants This column provides a list of

| | authorized lubricants for

components

Capacities This column lists the amounts

of lubricant required for each component This information

is handy when a component is

completely drained; you know

exactly how much lubricant

to use for the refill

different temperature ranges

Intervals This column provides the

symbols for the lubrication intervals These may be in

time, miles, hours, or any

combination of these

KEY

EXPECTED TEMPERATURES

LUBRICANTS CAPACITIES | Above 32°F | 50° to 0°F 0° to -50°F INTERVALS

(Above 0°C) | (0° to -18°C)] (18° to - 46°C)

Lubricating Ol,

Engine Engine 24 Qt OE/HDO30 | OE/HDO3O OEA OC-On Condition OE/HDO (22.7 L)

(Mi - L - 2104) W/Fllter D-Dally (Operation)

Tansmission 96 Qt OE/HDO10 | OE/HDO10 OEA

OBA W-Weekly

| (94.3 L)

(MIL- L- 48167)

W/Fliter

M-Monthly

Transfer Case 10 Qt OE/HDOS50 | OE/HDOS50 OEA

(9.6 L) Q-Quarterly

3M Hydraulic Reservior 95 Qt OE/HDO30 | OE/HDO10 OEA (8 Menthe)

(90 L)

W/Fiter $-Semiannually

(6 Months)

Heavy Duty Winch 13 Qt OE/HDOS0 | OE/HDOS0 OEA

Qoar Case (12.3 L) A-Annually

Axle Shift Unit F to plug OE/HDO10 | OE/HDO1O0 OEA

opening B-Biennialy

(2 Years)

Exposed Wire Rope OE/HDO10 | OE/HDO10 OEA

OB Can Pointe OE/HDO10 | OE/HDO10 OEA

Anti -F ntl - Freeze Radiat adlator 27 Gai AFG AFC 2- 2,000 Miles Coolant AFC (102.6 L) Ethylene Glycol Ethylene

(MIL - A- 46163) Glycol 3- 3,000 Miles

Arctic

(MIL - A - 11765) 6- 6,000 Miles

Lubricating O, Exposed Wire Rope CW CW

Chain, Wire (VV-L- 751) | (VV-L-751) 12- 12,000 Miles

Rope

Gear OF Above 10°F | 30°to 45°F | -W®to-B09ƑF

@o (Above -12°C)| (1° TO -26°C) | (-26° TO- 46°C)

1- 1 Hour (MIL - L.- 2106)

Axles No 1, 2, and 4 33 Pt GO 85W140 | QO 80W90 GO 75W 5- 6 Hours

(15.6 L) 10- 10 Hours

25- 25 Hours

Axies No 3 40 Pt GO 85W140 | GO 80Ww90 GO 75W

50- 50 Hours

Nose Box 7 Pt GO 85W140 | GO 80W90 GO 75W

(3.3 L)

Fig 3-27 Lubrication order key

3-29

c Main body The main body is the meat of the lubrication

order This section brings together vehicle information and

lubrication information The main body is broken down into two

sections; for ease of understanding, let's call them "systems

illustrations" and "localized views."

(1) Systems illustration section This section contains illustrations of the vehicle lubrication system There

will be one or more illustrations depending on the

complexity of the piece of equipment This section

locates major components and provides information such as

the types of lubricants to be used, types and intervals

of service, and the echelons of maintenance authorized to

perform the services

Now it's time for you to really become familiar with this part of

the LO Study the material in figure 3-28 and note the different services that are to be performed Use the cover page in figure

3-26 and the key in figure 3-27 to help interpret the symbols and

codes

Let's see how well you have studied Using figures 3-26 through 3-28, answer the following questions: |

What is the lowest echelon of maintenance authorized to check the number 1 axle differential and power divider?

When do you drain and refill the number 2 axle

differential? |

What lubricants are used in the shift unit (all axles)?

What do the following abbreviations or symbols mean?

LUBRICANT @ INTERVAL

No 1 Axle Differential

INTERVAL @ LUBRICANT

, and Power Divid Nosebox

(See note 9 and (See note 11 and view

view A, AX) P)

Spring Seats Shift Unit (All A

Lubricate (C) (1) fitting GGP 2/M ` 3/S OE/ Check er ‘ol

(See view E) N - HDO (See view U)

No 1 Propeller Shaft ` TY 6ÍA OE! Drain and fill (O)

Lubricate (C) (3) fittings) GGP 2/M : sy Front Wheel Bearings

16 and view C) ñ repack (O)

1 ` (See note 19 and view L)

Gương grease (C)

No 2 Axle Differential No 2 Propeller Shaft,

Check (O) 3/S Cardan doint, and Pillow

Drain and refil (0) GO 6/A Lubricate (C) (5) fittings

(See notes 9, 10 and (See notes 12, 13 14,

view B) 16, 17 and view C)

3/S GGP Lubricate (O) (4) fittings

No 3 Propeller Shaft 4 (See notes 12 thru 16,

and Universal Joints Š and view C)

Lubricate (C) (1) fitting GGP 2/M No 4 Propeller Shaft

16, and view C) a ——¿2IM GGP Lubricate (C) (3) fittings

Lubricate (O) (3) fittings GGP 3/S (See notes 12, 13, 14, 5 2 and view C)

15 16, 22, and view C) C 1 ỊP 31S GGP Lubricate (O) (3) fittings

No 3 Axle Differential 3 (See notes 12 thru 16,

Check (O) 3/S oe

Fi.(O) GO oc ae: Lube Pump Filter

Drain and refill (©) GO 6/A : Screen

(See note 9, 10, and GIA Clean (O)

view A, AY) (See note 9 and view A)

No 4 Axle Differential Brake Camshaft and |

Check (O) 3/S Siack Adjuster

Fil (0) GO OC ` (No 2, 3, and 4 Axies)

Drain and retill (0) GO 6IA `2M GPP Lubricate (O) (2) fittings (See notes 9, 10, and (See view F)

view B)

No 5 Propeller Shaft Pintle Hook and Universal Joints Lubricate (C) (3) fittings GGP 2/M—— ` 2/M GGP Lubricate (C) (3) fittings

(See view D) (See notes 12, 13, 14,

16, and view C) 3/S GGP Lubricate (O) (3) fittings

(See notes 12 thru 16 and view C)

CHASSIS

Fig 3-28 Systems illustration

3-31

How did you do? Well, compare your answers with those below to make sure you're on the right track

number 1 axle differential and power divider is

(O) - organizational maintenance (figure 3-26)

e You drain and refill the number 2 axle differential every (6/A) - six thousand miles or semiannually whichever

comes first (figure 3-26 and 27)

e The following lubricants are used in the shift unit (all

axles):

OE/HDO 10 or OEA, depending on the temperature

Note: Did you check the key in figure 3-27 or did you just

use figure 3-28? If you didn't check the key, do so

unit when the temperature is between O°F and -50 °F?

lubricants change with each temperature range!

e The answers to the symbols and abbreviations are:

GO Gear Oil _ AOAP Army Oil Analysis Program

(C) Operator/crew (O) Organizational Maintenance

Oc On Condition 2M 2000 miles/monthly

familiar with the equipment As you can see in figure 3-

29, these illustrations are close-up views of the

components shown in the systems illustration These

illustrations are designated by alpha characters

(letters)

Now let's go through the procedure for using this section Look

divider Notice the following statement: "(See notes 9, 10, and view A, AY)." Views A and AY refer to the localized views of the

left corner of figure 3-29

It's easy to see how useful this section could be if you were

trying to service the filter screen on the number 3 axle

servicing new equipment or equipment that you're not very

familiar with

CHECK AND FILL

LI 2320-12/9

LO 9-2320-297-12

FILTER SCREEN

NO 1 AND 3 AXLE DIFFERENTIALS

SLEEVE YOKE SEAL

SPLINE

FITTING

PILLOW

BLOCK U-JOINT

FITTING TYPICAL PROPELLER SHAFT

SPRING SEAT

SLACK ADJUSTER LUBE

Bà

@

& BRAKE

* ý | CAMSHAFT

LUBE

NO 2, 3, AND 4 AXLE BRAKE CAMSHAFT

AND SLACK ADJUSTERS

TA 297190 0

Fig 3-29

3

Localized views

33

d Notes Special instructions are sometimes placed in the

systems illustrations or on the cover page But, in some cases, where more information is required, a "note" section is provided (fig 3-30)

Take a moment to read the notes in figure 3-30 There is some

read them carefully

Let's see if you overlooked any information For example:

lubricants in some components when the outside

temperature drops below a specific point?

e Did you notice in note 3 that the oil change interval while the equipment is under warranty differs from the

interval for equipment not under warranty?

analysis? Did you realize that a technical bulletin (TB)

is listed to provide information on sampling procedures and to inform you of the location of the nearest oil lab?

about the transmission oil filter change?

e Did you see that note 9 contains some important

information pertaining to refilling the No 1 and No 3 differentials?

These are just a few examples of typical notes that you will find

a mechanic has, the lubrication order The purpose of the

lubrication order is to provide you with a single consolidated source of lubrication instructions You identified symbols and common terms and used the key and main body to identify

lubricants, intervals, and capacities Lastly, you found out that the "Notes" provide many special instructions!

NOTES

1 Cold Temperature Operation When

operating equipment in temperatures below

0° F (-18° C), remove lubricants prescribed

for temperatures above 0° F (-18° C) Relubri-

cate with lubricants specified for tempera-

tures 0° F to -50 F (-18° C to -46° C) Refer to

Cards 2 and 3 for lubricant temperature

ranges

2 Crankcase Check oil level with truck

parked on level ground andthe engine off and

cool Do not overfill

3 Change oil every 3,000 miles or semi-

annually until expiration of warranty After

expiration of warranty, change oil only when

directed by an oil analysis lab or at the above

hard time interval if oil lab support is unavail-

able For oil analysis, obtain a sarnple of

engine oil every 25 hours of operation or 30

days, whichever comes first Obtain this

sample through the engine dipstick opening

Send this sample to the nearest oil analysis

laboratory See TB 43-0210 tor instructions

on use of sampling pump as well as the

nearest oil lab location Drain crankcase only

when hot after operation See local view M for

drain location and view N for fill location See

view AV for sampling location

4 Engine Oil Fitter After installing new

filter element, fill crankcase, operate engine 5

minutes, and check housing for leaks Shut

down engine, check crankcase oil level, and

bring to full mark

5 Transmission Operate engine 1 min-

ute at 1,000 RPM, then idle until engine

temperature reaches 60-120°F (16-49°C)

With éngine idling, check transmission dip-

stick If oil level is on or below COLD RUN

line, add oil Approximately 1 quart (0.9L) of

oil is required to bring oil level from bottom of

COLD RUN line to middle of COLD RUN line

6 Transmission Internal Oil Filter Change

at overhaul

7 Change oil every 3,000 miles or semi- annually until expiration of warranty After expiration of warranty, change oil only when directed by an oil analysis lab or at the above hard time interval if oil lab support is unavail- — able For oil analysis, obtain a sample of transmission oil every 25 hours of operation

or 30 days, whichever comes first Obtain this sample through the transmission dipstick opening Send this sample to the nearest oil analysis laboratory See TB 43-0210 for in- structions onuse of sampling pump as well as the nearest oillab location See local view AW for sampling location, and see view Q for fill location See local view S for transmission drain location

8 Transfer Case First oil change must

be performed between 500 (800 km) and 1,000 (1,600 km) miles thereafter

9 Axle Differentials Change lubricant in new or rebuilt axles within 1,000 miles (1,600 km), but no sooner than 500 miles (800 km)

During all lubricant changes, remove metal particles from magnetic drain and filler plugs

Clean the lube pump filter screen in No 3 axle

Fill differential housings to a level even with bottom of CHECK and FILL plug ho!e

When filling No 1 and No 3 differentials, add

1 qt (.91L) of lubricant through fill hole in top

of power divider To fill No 1 axle power divider, remove lube line at top of power divider |

Coat all axle plugs with pipe sealant and tighten securely

Fig 3-30

3-35

Lubrication order notes

Note: To complete the following exercise, you must refer to

the lubrication order contained in figures 3-26 through 3-30 Read the items carefully and refer to the figures before attempting to answer the items

Exercise: Complete items 1 through 3 by performing the action

required Check your responses against those listed

at the end of this study unit

Situation: You are stationed in an area that is affected by

be as low as O°F Your shop chief has directed you to drain and replace the antifreeze and lubricants in the LVS as

required The lubricants currently in the LVS are the ones

the lubrication order calls for when expected temperatures

are above the 32°F range

1 What lubricants must be used in the following components?

a Engine

d Hydraulic reservoir

2 How much anti-freeze is required?

3 What is meant by the following terms?

c Lubricate (C)

a (See view D)