TM-9-2320-366-34-1

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 1 OF 4

AUGUST 2005

CHANGE 2

TM-9-2320-366-34-1 - Page 1237 of 1591

k1. DUMP BODY DOES NOT RAISE (CONT)

KNOWN INFO

TEST OPTIONS

REASON FOR QUESTION

TM 9-2320-366-34-1

Pressure Test or

STE/ICE-R Test #51

WARNING

CAUTION

Read WARNING and

CAUTION on

following pages.

4.

NO

YES

Replace dump body hoist

cylinder (para 17-4).

Clean or replace pressure

reducing valve (para 17-3).

Hydraulic oil level OK.

PTO OK.

Hydraulic hoses and fittings

OK.

Hydraulic oil filter OK.

Dump body electrical system

OK.

Hydraulic rotary pump OK.

Four-way relief valve OK.

POSSIBLE PROBLEMS

Faulty pressure reducing valve.

Faulty dump body hoist

cylinder.

Can pressure port B of

four-way relief valve be

adjusted to 325-375 PSI

(2,241-2,586 kPa)?

If four way relief valve cannot

be adjusted to 325-375 PSI,

(2,241-2,586 kPa), pressure

reducing valve is faulty.

If four

way relief valve can be

adjusted to 325-375 PSI

(2,241-2,586 kPa), dump body

hoist cylinder is faulty.

2-1072.6

Change 1