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10
TO STOP ENGINE
• To stop engine, release operator pres-
ence con trol bar.
TO START ENGINE
NOTE: Due to protective coatings on the
engine, a small amount of smoke may be
present during the initial use of the prod-
uct and should be considered normal.
1. To start a cold engine, push primer
three (3) times before trying to start.
Use a fi rm push. This step is not
usually necessary when starting an
engine which has already run for a few
minutes.
2. Hold operator presence control bar
down to the han dle and pull starter
handle quickly. Do not allow starter
rope to snap back.
NOTE: In cooler weather it may be
necessary to repeat priming steps. In
warmer weather over priming may cause
fl ooding and engine will not start. If you do
fl ood engine, wait a few minutes before
attempting to start and do not repeat
priming steps.
BEFORE STARTING ENGINE
ADD OIL
Your lawnmower is shipped without oil in
the engine. For type and grade of oil to
use, see “EN GINE” in the Maintenance
section of this manual.
CAUTION: DO NOT overfi ll engine with
oil, or it will smoke heavily from the muffl er
on startup.
1. Be sure lawnmower is level.
2. Remove oil dipstick from oil fi ll spout.
3. You receive a container of oil with the
unit. Slowly pour the entire container
down the oil fi ll spout into the engine.
NOTE: Initial oil fi ll requires only 18 oz.
due to residual oil in engine from the
manufacturers 100% quality testing. When
changing oil you may need 20 oz.
4. Insert and tighten dipstick.
IMPORTANT:
• Check oil level before each use. Add oil
if needed. Fill to full line on dipstick.
• Change the oil after every 25 hours of
operation or each season. You may
need to change the oil more often
under dusty, dirty conditions. See “TO
CHANGE ENGINE OIL” in the Mainte-
nance section of this manual.
ADD GASOLINE
• Fill fuel tank to bottom of tank fi ller neck.
Do not overfi ll. Use fresh, clean, regular
unleaded gasoline with a minimum of
87 octane. Do not mix oil with gasoline.
Purchase fuel in quan ti ties that can be
used within 30 days to assure fuel fresh-
ness.
CAUTION: Wipe off any spilled oil or
fuel. Do not store, spill or use gasoline
near an open fl ame.
CAUTION: Alcohol blended fuels
(called gasohol or using ethanol or metha-
nol) can attract moisture which leads to
separation and for ma tion of acids during
storage. Acidic gas can damage the fuel
system of an engine while in storage. To
avoid engine problems, the fuel system
should be emptied before stor age of 30
days or longer. Empty the gas tank, start
the engine and let it run until the fuel lines
and carburetor are empty. Use fresh fuel
next season. See Storage In struc tions for
additional information. Never use engine
or carburetor cleaner products in the fuel
tank or permanent damage may occur.
Engine
oil cap
Gasoline
fi ller cap
Primer
39
HUSQVARNA ROTARY LAWN MOWER - - MODEL NUMBER 917.374080 (PRODUCT NUMBER 7021)
KEY PART
NO. NO. DESCRIPTION
KEY PART
NO. NO. DESCRIPTION
1 196403 Upper Handle Assembly
(Includes Foam Grip)
2 151721X498 Lower Handle
3 194580X422 Control Bar
4 151681 Engine Zone Control Cable
5 191574 Handle Bolt
6 182398 Handle Knob
7 51793 Hairpin Cotter
8 66426 Wire Tie
9 401812X428 Rear Door Assembly
10 128415 Pop Rivet
11 406573X479 Support Bracket, LH
12 406574X479 Support Bracket, RH
13 17060410 Screw 1/4-20 x 5/8
14 175576X422 Handle Bracket Assembly, LH
15 175577X422 Handle Bracket Assembly, RH
16 405417 Spring, Rear Door, LH
17 405418 Spring, Rear Door, RH
18 132004 Keps Locknut 1/4-20
19 194788 Rope Guide
20 413159 Rear Skirt
21 88652 Hinge Screw 1/4-20 x 1-1/4
24 - - - Engine, Kohler,
Model Number XT173-
3089-EA (See Breakdown)
25 150406 Screw, Hex Head, Threaded,
Rolled 3/8-16 x 1-1/8
26 409149 Hex Flange Nut
27 401277X460 Wheel & Tire Assembly
28 401638 Shoulder Bolt 5/16-18 x .33
30 401181X004 Axle Arm Assembly, Rear
31 701037 Selector Knob
32 401626X004 Selector Spring
33 155377 Nut, Hex
34 401630 Washer, Curved, Cylindrical
36 184193 Bolt
37 74780512 Screw
38 401629 Spacer
39 73800500 Nut, Hex 3/8-16
40 420474X004 Belt Retainer
44 408989 Kit, Lawn Mower Housing
(Includes Key Numbers
10, 11, 12 and 45)
45 404763 Danger Decal
46 194037 Blade Adapter / Pulley
47 406712 Blade, 21"
48 851074 Hardened Washer
NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm.
IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your lawn mower and void your warranty.
49 850263 Helical Washer
50 851084 Screw, Machine, Hex Head,
Grade 8 3/8-24 x 1-3/8
57 850733X004 Upstop Bracket
58 750634 Screw
59 185582 Discharge Defl ector
60 175735 Hinge Bracket
61 193000 Spring, Hinge Bracket
62 175650 Rod, Hinge
63 73800400 Nut, Hex
64 185576 Mulcher Door
65 197480 O-Ring
66 88348 Washer, Flat
69 182748 Grip, Foam
96 197991 Clip, Cable
- - 404764 Warning Decal (not shown)
- - 425823 Owner’s Manual,
English / Spanish
Available accessories not included with mower:
- - 71 33623 Gas Can
(2.5 Gallon Container)
- - 71 33500 Fuel Stabilizer
- - 71 33000 SAE 30W Oil
(20 Ounce Bottle)
KEY PART
NO. NO. DESCRIPTION