Section XIII. ENGINE ELECTRICAL SYSTEM (Model RMP-J/1-1OG)

TM 5-4110-217-14

Section XIII. ENGINE ELECTRICAL SYSTEM (Model RMP-J/1-1OG)

3-40.

General.

NOTE

The engine electrical system consists of a starter motor,

When installing starter to engine oil

starter

solenoid, magneto, breaker mechanism,

base, do not draw the mounting bolts up

alternator, voltage regulator, and battery.

tight The gears should have 0 004 to 0

007 inch backlash Tap the starter in or

out from the oil base to adjust Then

3-41.

Starter Solenoid.

tighten bolts securely

Removal (fig. 3-16).

(1) Disconnect battery cable (fig. 3-20, item

(3) Install solenoid starter per paragraph 3-

6).

41c.

(2) Disconnect

starter

cable

(17).

(4) Install blower housing with screws (fig. 3-

Disconnect harness wiring at solenoid (1).

11, items 14 & 15).

(3) Remove two nuts (2) and washer (3) that

attach solenoid to engine frame.

3-43.

Magneto (fig. 3-17).

b. Clean and Inspect.

Testing.

(1) Clean solenoid with an approved cleaning

(1) Disconnect end of coil cable (212, fig. 3-

solvent and dry thoroughly.

11) from breaker box.

(2) Inspect for cracks, dents and other

(2) Insert a short, stiff wire in coil cable socket

damage. Replace, if defective.

and bend wire to one-half inch of engine chassis.

c. Installation.

(3) Turn engine starting sheave slowly. A

(1) Align holes of starter solenoid (1) with

strong spark should occur in gap between wire and

holes on engine frame and attach with two nuts (2) and

engine when breaker points break. Remove wire.

washers (3).

Replace cable.

(2) Connect starter cable (17), and wires from

b. Removal.

harness to solenoid.

(1) Remove ignition cables (fig. 3-8).

(3) Connect battery cable (fig. 3-20, item 6).

(2) Remove blower housing (para 3-42a (1) ).

(3) Remove screw (125, fig. 3-11), washers

3-42.

Starter Motor.

(125 & 126, fig 3-11), holding rope sheave and backplate

Removal fig.3-16).

(123 & 124, fig 3-11).

(1) Remove blower housing (fig. 3-11, item

(4) Using flywheel puller tool, Onan part no.

13) by removing three cap screws (fig. 3-11), item 15)

420-0100, remove flywheel (127, fig. 3-11)

and screw (fig. 3-11, item 14)

(5) Remove screw (1) and washer (2) holding

(2) Remove solenoid starter per paragraph 3-

magnet (4) and spacer (3) to flywheel. (6) Remove screw

41a.

(6), washer (7) and clip (8) holding magneto stator

(3) Remove three cap screws (32) and

assembly (5) to gear cover assembly (135, fig. 3-11).

washers (33) attaching starter mounting flange (31) to

c. Clean and Inspect.

engine.

(1) Clean magneto stator with a dry lint-free

(4) Remove two cap screws (36) and

cloth

lockwashers (35) attaching starter motor (34) to flange.

(2) Inspect magneto stator for broken, frayed

b. Clean and Inspect.

wires or damaged insulation Replace if necessary.

(1) Clean starter with a clean' lint-free cloth.

(3) Check condition of thread on magnet (4).

(2) Inspect starter for cracks, chips, worn

Replace if necessary.

drive, and worn brushes. Refer to direct support unit for

d. Installation.

repairs.

(1) Using inner set of mounting holes (this will

c. Installation

give 19 spark advance), align magneto stator (5)

(1) Assemble starter mounting flange (31) to

starter motor (34) using two cap screws (36) and

mounting holes to gear cover assembly and attach

lockwashers (35).

magneto with screws (6), washer (7) and clip (8).

(2) Attach starter mounting flange with starter

(2) Using screw (1) and washer (2), install

motor to engine with three cap screws (32) and washers

spacer (3) and magnet (4) to flywheel.

(33).

(3) Using a soft rubber mallet, tap on flywheel

(131, fig. 3-11) to crankshaft and key(199, 202, fig. 3-11).

(4) Install backplate (124, 3-11), rope sheave (123,

fig. 3-11) and washer (122, fig. 3-11) with

Change 3 3-23