Briggs & Stratton 1687079 User Manual

1

Installation
Instructions

54”Roller Bar Mower Kit

Part No. 1687079

For Prestige / 1800 / 2800 / GT / Conquest / 1700 / 2700 / YT

This kit is is to convert a frame hung mower to a
roller bar mower.

Before beginning any service work turn off the
PTO, set the parking brake, turn off the ignition,
and disconnect the spark plug wire(s).

WARNING

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Kit Contents: 1687079, 54” Roller Bar

Ref Part No. Qty. Description

1 1723008A 1 SHAFT & BAR ASSEMBLY
2 1704082 1 NUT, Hex Adjusting
3 2860681 2 LOCKNUTS, Top Lock, 3/8-16
4 1677507 1 SLIDE
5 1924361 1 WASHER, 1/2
6 2172622 1 BOLT, Shoulder, 3/8-16
7 1701873 6 SPACERS

8 2860626 14 WASHERS

9 1720159 2 ROLLERS, 2-3/4 x 2
10 1678043 2 ROLLERS, 2-3/4 x 4-1/16
11 1918459 2 COTTER, Pins
12 1678042 8 ROLLER W/BUSHINGS
13 1723009 1 BAR
14 1733523A 1 ROCKER ARM, 54 Mower
15 1931352 1 CARRIAGE BOLT, 3/8-16 x 1-1/2
16 1720142A 1 TRUNNION SUPPORT

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15

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2

3

4

5

6

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10

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3

7

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11

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16

10

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7

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8

7

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13

C

B

A

F

E

M

L

N

A

I

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Installation Instructions Roller Bar Mower Kit

Figure 2. Remove Frame Hung
Components
A. Capscrew, 5/16-18 x 3/4
B. Bracket & Wheel Assembly, RH
C. Trunnion Assembly
D. Capscrews, 5/16-18 x 1-1/4
E. Arm

F. Height of Cut Plate
G. Lockwashers, 5/16
H. Nuts, 5/16-18
I. Hair Pins
J. Clevis Pins
K. Rocker Shaft Assembly
L. Locknut, 1/2-13

M. Stop, Height of Cut
N. Adjustment Rods
O. Straps
P. Bracket & Wheel Assembly, LH
Q. Locknuts, & Washers
R. Capscrews, 5/16-18 x 1-1/2
S. Chains, 4 Link

REMOVAL 54”FRAME HUNG

1. Disconnect hair pins (I, Figure 2) and clevis pins (J)
from adjustment rods (N). Remove adjustment rods
(N) from rocker arm assembly (M). Reconnect hair
pins (I) and clevis pins (J) into adjustment rods (N) to
prevent loss.

2. Remove and retain 5/16-18 x 1-1/4 capscrews (A).
Remove and bracket (B).

3. Remove and retain 5/16-18 x 1-1/4 capscrews (D),
arm (E) and crank & trunnion assembly (C). Remove
and retain nuts (H), lockwashers (G) and height of cut
plate (F).

4. Remove and retain nuts (L). Remove and discard
stop (M).

5. Remove and retain straps (O) capscrews (A).
Remove and discard rocker arm assembly (K).

6. Remove and retain 5/16-18 x 1-1/2 capscrews (R)
locknuts & washers (Q), and chains (S).

O

A

P

M

J

S

R

Q

Q

G

H

D