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995000582
5-16-18 (REV:01)

WIRING HARNESS REPLACEMENT

See Figures 1 - 10.

WARNING: 

Carefully follow all of the steps below and avoid pinching or dam-
aging any wire insulation. Damaged wiring can result in the lawn 
mower not functioning properly and cause serious personal injury 
or damage to the lawn mower.

NOTICE:

 

The steps described in this instruction sheet should only be per-
formed by a qualified service center.

 

Remove the battery pack from the mower.

 

Remove the 4 screws 

(A) 

securing the bumper 

(B) 

to the deck 

cover. Remove the bumper and set aside.

 

Remove the 2 screws 

(C) 

securing the height adjustment handle 

(D)

. Remove the handle and set aside.

 

Remove the 10 screws 

(E) 

securing the deck cover

 (F) 

to the mower 

base.

 

Lift the deck cover to one side. Remove any shrink tubing and/or 
zip ties securing the 2 connections 

(G, H) 

shown.

 

Pull the connections 

(G, H) 

apart, then remove the deck cover 

completely from the mower base.

 

Disconnect the wires 

(I)

 from the key holder 

(J)

.

 

Use a flat head screwdriver to lift the tab 

(K)

 and release the battery 

base connector 

(L) 

from the deck cover. The old wiring harness 

can now be discarded.

 

On the underside of the deck cover, remove the 2 screws 

(M) 

securing the key holder 

(J)

. Remove the key holder from the deck 

cover. 

 

Feed the battery base connector wires 

(N) 

of the new wiring har-

ness through the opening on the deck cover so the wires are on 
the underside of the cover. The battery base connector will click 
into place when fully seated.

 

Install the new key holder 

(O)

, tightening screws securely.

 

Plug the two battery base terminals 

(P) 

into the key holder.

 

Reconnect the other connections 

(G, H) 

separated previously. For 

connection 

G

, move the provided shrink tubing over the connection 

and use a heat gun to shrink, or cover with electrical tape to secure.

 

Reinstall the deck cover, tightening screws securely.

 

Reinstall the height adjustment handle, tightening screws securely.

 

Reinstall the bumper, tightening screws securely.

TECHTRONIC INDUSTRIES  

POWER EQUIPMENT

P.O. Box 1288, Anderson, SC 29622 USA

1-800-860-4050  

  www.ryobitools.com

RY40104 

Fig. 2

Fig. 3

A

B

C

M

D

J

O

E

K

L

F

N

G

H

P

F

Fig. 1

Fig. 4

Fig. 5

Fig. 7

Fig. 8

Fig. 6

I

J

Fig. 9

Fig. 10

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