Simplicity 1691810 User manual

OPERATOR’S
MANUAL
42”/48” Turbo Blower Assembly
Mfg. No: 1691810
Mfg. No. 1691998
FORM 170460604
PRINTED IN U.S.A.
12/93-3ooccI

HEX CAPSCREW
PLAIN WASHER LOCKWASHER
a
p.
NUT
HEX CAPSCREW IDENTIFICATION
Shown below are actual size hex heads for standard screw sizes.
Example: a
l/4” screw has a 7116 head and.thus requires a 7716
wrench. To measure length, use the scale below.
~0000
t/2” Heed 7fl6” Head
34” Head 518” Head
6716” Head screw with screw with
screw with screw with screw
with 5716” SD. l/4” SC.
112” SD.
7116” S.D.
310” SD. SD.
= Shaft Diameter
0 1 2 3
4
WASHER AND NUT IDENTIFICATION
Place the washer or nut on the above scale to
determine inside diameter. The actual
insides di-
ameter can vary l/16 inch. Use the scale for
comparison.
STANDARD
FASTENER
IDENTIFICATION
CHART
Hardware sizes are given in the
illustrations throughout this
manual.
If a washer or nut is identified
as “washer. l/2” or “nut.
172”.
this means the inside diameter
is l/2 inch.
If a screw is identified as ‘Wrew.
l/2 x 2”. this means the shaft
diameter is
l/2 inch and the
shaft of the screw is 2 inches
long. If
a~ screw is identified as
“screw. l/2-16~2”.thenumber
“16” means that the screw has
16 threads per inch.
SAMPLE: SCREW iDENllflCAllON
-
Screw l/2
c Shaft
! Diameter
Shaft
Diameter
1
c Screw ir
Length
.$J
*.y
SAMPLE: NUT IDENTlFlCATlON ‘:i
Nut. 112
3
- Inside
Diameter

Table of Contents
Safety Decal ................................
Safety Rules ................................
Installation
Lawn Tractor ...........................
Front-Cut Rider .........................
Operation ..................................
Standard Fastener Identification Chart .......
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. . . . 1
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3
. . . . 8
. . . . 13
. . . . 15
NOE The additional weight of the turbo blower may cause the end roller on the mower deck to wear faster. For
this reason, a replacement roller is supplied with the turbo blower kit.
(I
,Safety Decal
A DANGER
ROTATING BLADES
SHUT OFF MOWER
AND TRACTOR
BEFORE SERVICING
OR CLEANING BLOWER
AND MOWER.
Located on Blower Housing
1

Safety Rules
A
Read these safety rulesand the safety rules in yo,ur Operator’s
Manual and follow them closely. Failure to obey these rules
could result in loss of control of vehicle, severe personal injury
to yourself, or damage to property or equipment. The triangle in the
text signifies important cautions or warnings which must be followed.
A
WARNING
When blower assembly is removed from mower deck, the deflector
must be installed as described in Operating Without Collection System.
1. Know the tractor or ridercontrolsand how
to stop quickly. READ THE OWNERS
MANUAL.
2. Disengage the PTO, shut the engine off
and wait for all moving parts to stop before
attaching, adjusting, or disconnecting any
part of the collection system.
3. Check the collection system to make sure
it is bolted tightly to tractor or rider.
4. Check the latch handle to make sure it is
engaged so the dump cart’s box is locked
to the frame.
5. Look behind to make sure the area is clear
before backing up.
6. DO NOT turn sharply when the tractor or
rider is alongside a building or any object.
7. DO NOT carry passengers in the cart.
8. A CAUTION: For added tractor or rider
stability and to prevent tipping or loss of
control;
a. Use reduced speed on uneven ground
and when turning corners.
b. Reduce loads on hillsides. It is rec-
ommended that the collection system
be kept only half full when negotiating
any slopes. Start mowing on slopes
when the collection system is empty.
c. Mow up and down the face of slopes;
never acrossthe face of any slope.
9. AWARNING: When operating on
slopes, use ,front
countennreight. Never
operate on slopes greater than 30%
(16.7”).
10. ACAUTION: Objects may be thrown
from mower.
For your safety:
a. DO NOT remove the cover while the
mower blades are tyrning. Shut off the
engine before openmg the door or
removing the grass chute.
b. Be sure the complete collection
system is in place (cover secure and
grass chute connected) before
operating the mower.
c. DO check the twin bag cover fre-
quently for wear and tear. Replace with
new cover for safety protection.
11. For best results when mowing grass: Set
the mower to cut from 1 to 2 inches of
grass. If grass isexceptionallytall, set your
mower as high as possible for first cutting.
Lower cutting height at succeeding
cuttings until proper height is reached. It
may be necessary to mow tall grass at a
slower tractor speed.

installation - Lawn ,Tractors
NOTE
Two spacers are packaged with turbo biower.
Installation on tractor requires use of
4-l/16”
spacer (see step 11); the 1/2”spacerwill not be
used.
1. Remove mower deflector and arbor cover as
follows:
a. Remove the mower deflector by removing
two carriage bolts, lockwashers and nuts.
Install this hardware on the deflector for use
when blower is removed for side discharge.
b. Remove the right hand arbor cover (A, figure
1) by removing washers and nuts in frontthat
hold cover to deck. Also, remove nuts
(8) and
washers that secure rear tabs to arbor.
2. Slip mower belt off the right hand pulley.
Remove the pulley from the arbor by removing
capscrew (D, figure 2) and washers (F). Save
washers for reinstallation. Use wood block to
orevent blade from turning.
NOTE
Later model decks have l-1/2” taptite screws,
rather than 1” taptite screws, location A, figure
2. If capscrew protrudes 5/S” above arbor, new
capscrews do not need to be installed
3. Remove brake spring or spring anchor (if
equipped) and two taptite screws from arbor at
locations A, figure 2. Replace these with two
5/16-18x l-1/2 capscrews (A).
A. capscrew
D. capscrew
B. Arbor Bracket E. Belt Stop, Front
C. Notch F. Washers
4. Before installing arbor bracket (B, figure 2 &A,
figure3), removewasherfrom underneath blade
brake bracket (rear capscrew). Arbor bracket is
same thickness as washer and will replace
washer. Loosen the front flange nut and remove
the rear flange nut on the blade brake bracket.
NOTE
Rear belt stop should be installed facing inside
of deck.
5. Install the arbor bracket (A, figure 3) and rear
belt stop (B) as shown. Note the different holes
for the 42” and 43” mowers. On the 42” deck,
install a jamnut at rear bracket location instead
of flange whiz nut. Tighten nut (F) snug only -
belt stop will be adjusted in step 8.
Figure 1.
A. Arbor Cover
B. Nut dover
Figure 2.
I.
Figure 3.
A Arbor Bracket C. CapSxew E.
Lockwasher
B. Belt Stop D. Large Washers F. Jam Locknut
3

NOTE
Front belt stop should be installed facing
outside of deck.
‘6. Install thefront belt stop (A, figure4) onto5/16-
18 x l-1/2 capscrew (installed in step 3) as
shown. If removed, reinstall brake spring or
spring anchor (F) before flange nut(G). Tighten
nut (E) snug only
- belt stop will be adjusted in
step 8.
GMower Decks
Figure 4.
a Belt stop
B. Capscrew
C. Large Washer
D. , n**.“rchn*
E. Nut
F. Spring or Spring Anchor
G. Flange Locknut
7. Install new double-groove arbor pulley (D,
figure 5) with hub down. Use new 7/16-14 x 2-
1/4 capscrew and washers removed in step 2.
Torque
to~55 to 70 ft. Ibs. Use wood block to
prevent blade from turning. It may be necessary
to add washer(s) (C, figure 5, two provided)
underneath the new pulley to properly align
brake pad and bottom groove. Referto figure 5.
Add washers to adjust top-to-bottom alignment:
l/16” clearance must be adjusted after belt is
installed and PTO is engaged.
8. Slip the mower drive belt onto the lower groove
of the new pulley (D, figure 2). With the mower
PTO engaged, adjust the belt stops l/8” from
belt. Tighten the hardware.
9. If mower is equipped with blade brake, adjust
the brake after installing new double groove
pulley as follows:
a. Engage the PTO lever. Be sure that mower
drive belt tension is correctly adjusted (see
Operator’s Manual).
b. Inspect the brake pad (A, figure5) to V-pulley
(B) clearance. With PTO engaged, clearance
should be l/l6 inch as shown in figure 5.
c. If adjustment is required, turn adjusting nuts
(A, figure 6) until proper clearance is
reached.
Figure 5.
A. Brake Pad
B. Bottom Groove C. Washers (If required)
D. Double-Groove Pulley
Figure 6.
A. Blade Brake Adjustment Nuts

10. The baffle (A, figure 7) is installed in the blower
housing for use with 42” mower. For use with
48” mower, remove the baffleand install in holes
marked 48”.
I
Figure 7.
A Battle
NOTE
On42”and 48” mowersthecapscrewinstalled
in next step is used in the hole occupied by a
screw held in place by a retaining nut. (This
screw secured the right-front corner of the
arbor cover.) Remove this screw(s) from
mower deck by tapping out with a hammer or
prying off the retaining nut.
11. Install the pulley cover (B, figure 8) with
hardware shown, items E through M. (Figure 8
shows blower housing but it is not installed at
this point of the procedure.)
In
: . . . . -..._
A. Blower Housing
q . Pulley Cover
C. Hook
D. Clip
E. Capscrew
F. Washer, 5116
G. Large Washer, 5/16
H. Spacer
I. Lockwasher, S/16
J. Nut. 506
K. La& Washer, S/16
L. Large Washer, 5/16
I
M. Locknut, S/16
N. Wing Nut
5

12. Install wing nut (D, figure 9) as follows:
a. Remove existing hardware from front end of
stone guard.
b. From inside deck, install new 5/16-18 x
2-l/4
carriage bolt (F, figure 9). Then install the cup
(A), 5/16 lockwasher (6). and 506 nut (C).
Tighten the nut.
c. Thread the wing nut (D) far enough onto the
screw so that the 5/16 locknut (E) can be
threaded on flush with the end of screw.
13. Install the new baffle (A, figure 10) in deck on
stone guard using existing hardware. Hardware
may be installed with nut to inside or nut to
outside.
Figure 10.
A. Battle
B. Carriage Bolt
C. Mower Discharge Omening
14. Install the blower assembly as follows:
a. Pivot cover (B, figure 8) away to expose the
arbor.
b. Align the notch (G, figure 11) with spaceron
arbor bracket. Align spacer(C) with notch (C,
figure 2) on arbor bracket. Slide theassembly
into place as shown in figure 13, while
aligning front notch between cup and wing
nut (D, figure 13). Tighten wing nut.
Figure 11.
A. Blower Drive Belt
B. Idler Pulley C. Space
D. Belt Retainer
E. Baffle
F. Driven Pulley
G. Notch
6
Figu’ie 9.
A. cup
q . Lockwasher, 5116
C. Nut. 5116
Q. Wing Nut
E. Lrxknut, 5116
F. Carriase Bolt
Hdok B&e
Over Stone Guard 6

c. Place mower in low cut position. Raise the
flap (A, figure 12) and push on the belt
retainer (E) to obtain slack in the belt. Install
the blower drive belt (D) in the top groove of
the pulley(B).
d. Rotate the pivoting cover (A, figure 13) into
place and attach the hook (B) to the clip (C)
on the housing.
Figure 12
A. Flap
6. Pulley
c. Ben
\
D. Drive Belt
E. Belt Retainer
Figure 13.
k pdley Cover
9. Hook
C. Clip
D. Wing Nut
7

Installation - Front Cut Riders
NOTES
1. Two spacers are packaged with the turbo
blower. Installation on the Front-Cut Rider
requires use of the l/2” spacer (see step 14).
The 4-l/16” spacer will not be used.
2. The replacement right hand belt cover (seestep
15),along with thenew3/8-16x2-1M”capscrew
for the right hand idler pulley (see step
4) is
packaged with the collection system.
INSTALLATION
1. Remove right hand mower belt cover by
removing flat washer and flange nut (A) and
front taptite screw (B). Loosen hardware at
center location (C). Belt cover can bediscarded
as new belt cover and arbor cover will replace
original cover. Save all hardware for installing
new cover.
2. Remove the deflector mounting hardware and
reinstall in deflector for future use. Deflector
must be reinstalled if turbo blower is removed
from mower deck.
Figure 1. (Later Mode\1 Shown)
A. Flange Nut
B. Tapttle Screw
C. Mounting Hardware -Center Location
I
e
WARNING
Use caution when moving spring-loaded idler
pulley. Spring tension isstrong. Do not remove
belt from spring-loaded idler pulley. Remove
belt from left and right hand pulleys.
3. Pull spring-loaded idler pulley away from belt
and remove belt from right hand arbor pulley
and idler pulley.
4. Remove the idler pulley
capscrew (installed
from the top) and install new 3/8-16 x 2-114”
capscrew from the bottom. Pulley bracket
mounting hardware may need to be loosened to
install 2-l/4” capscrew (A) from bottom. Install
existing flat washer (8) on top of bracket, pulley,
existing flat washer(B),
lockwasher(C),and nut
(D) to secure capscrew. Install large washer(E)
onto capscrew. Capscrew (A), lockwasher (C),
nut (D), and large washer(E) are packaged with
the collection system.
NOTE
Existing flange nut will be used in step 15 to
secure new belt cover.
,
- Pulley
I
F igure 2.
A.
2-114” Capscrew
B. Flat Washer (Existing)
C. Lockwasher
D. Nut
E. Large Flat Washer, 13/X? x l-l/2X 118