Snapper Lawn Mower Steel Deck Commercial Walk Behind Mowers User Manual

SET-UP INSTRUCTION & PRE-OPERATION CHECKLIST  
SNAPPER 21" STEEL DECK COMMERCIAL WALK BEHIND MOWERS  
INTRODUCTION: The SNAPPER Walk Behind Mowers are shipped almost fully assembled and require minimal  
set-up. Complete each of the following steps carefully. Review and complete each item as instructed on the Pre-  
Operation checklist. The Snapper Product Registration card must be filled out and sent to Customer Service  
department at Snapper when completed.  
STEP 1: Remove mower from shipping carton. These  
LOWER  
HANDLE  
(Left Side)  
mowers are manufactured with (4) 5/16-18 x 2” hex cap  
screws, and (4) 5/16 bolt retainers that secure the  
upper, middle handles and lower handle brackets  
together for packaging purposes. This hardware will  
have to be removed and discarded. See Figure 1.  
5/16 X 2”  
CURVED  
HEAD BOLT  
MIDDLE  
HANDLE  
UPPER  
5/16 BOLT  
HANDLE  
RETAINER  
MIDDLE  
HANDLE  
5/16 HEX  
NUTS  
5/16 LOCK  
WASHERS  
5/16 BOLT  
RETAINER  
5/16 X 1-1/2” MACHINE  
SCREWS  
5/16 X 2” HEX  
FIGURE 2  
MIDDLE  
HEAD CAP  
HANDLE  
SCREWS  
UPPER  
HANDLE  
INTERNAL  
TOOTH LOCK  
WASHER  
5/16 BOLT  
RETAINER  
MIDDLE  
HANDLE  
LOWER  
HANDLES  
5/16 X 1-1/2”  
CURVED  
HEAD BOLTS  
REMOVE EXISTING HARDWARE  
FIGURE 1  
HEX NUT  
FIGURE 3  
STEP 2: New hardware can be found in hardware bag.  
Attach middle handle to lower handle brackets using  
5/16-18 x 2” curved head bolts, installed from the inside  
of handles as shown, and secure with 5/16 internal  
tooth lock washers and hex nuts. Do Not tighten at this  
time. See Figure 2.  
LOOSEN ANCHOR  
HARDWARE  
MOVE HANDLES  
UP OR DOWN  
STEP 3: Attach the upper handle assembly to the middle  
handle using 5/16-18 x 1-1/2” curved head bolts,  
installed from the inside of handles as shown, and  
secure with 5/16 internal tooth lock washers and hex  
nuts. Do Not tighten at this time. See Figure 3.  
STEP 4: To adjust handle height loosen bolts on both  
lower handle brackets. See Figure 4. Move handles up  
or down for desired height. Tighten all bolts and nuts on  
all handles and brackets.  
LOOSEN NUTS  
ON BOTH SIDES  
FIGURE 4  
INSTRUCTION No. 7-4361 (I.R. 2/16/01)  
1
STEP 8: Check the clearance between the clutch cable  
and clutch spring. NOTE: Clearance between spring and  
cable is very important. Excessive clearance will cause  
drive system not to operate when wheel drive control  
handle is depressed. No clearance at all will cause mower  
to continue to propell itself when wheel drive control handle  
is released to stop the mowers forward movement. Slide  
vinyl spring cover (located at the end of clutch cable) up  
clutch cable to gain access to the end of spring and cable  
loop. With wheel drive control handle released, clearance  
between spring hook and cable loop should be 1/16” to  
1/8”. If clearance is more or less than specified, unhook  
spring from clutch cable eye, then adjust by turning inner  
spring in an opposite direction than the outer spring.  
Rehook spring to clutch cable eye. Slide vinyl cover over  
the spring when correct clearance is reached. See Figure  
10.  
B. Remove driven disc spring from driven disc  
assembly as shown. Loosen connector hex-nut.  
See Figure 12.  
DRIVEN DISC  
ASSEMBLY  
DRIVE  
DISC  
DRIVEN  
DISC  
SPRING  
CLUTCH CABLE  
VINYL SPRING COVER  
TRANSFER  
ROD  
CONNECTOR  
1/16” - 1/8”  
CLEARANCE  
HEX NUT  
OUTER  
SPRING  
FIGURE 12  
C. Slide driven disc assembly over until 1/8” from  
outside edge of drive disc. Maintaining the 1/8”  
measurement, remove any looseness from the  
linkage. This can be done by holding the transfer  
rod and applying pressure to the left, (as viewed  
from operators position), then retighten the  
connector hex-nut securely. See Figure 13. Move  
shift rod to the number one speed position, then  
back to the number six speed position. Recheck the  
1/8” measurement described previously. Reinstall  
driven disc spring to driven disc assembly.  
INNER  
SPRING  
CABLE  
CLUTCH  
CABLE EYE  
SPRINGS  
FIGURE 10  
1/8” MEASUREMENT  
TO OUTSIDE EDGE OF  
DRIVE DISC  
STEP 9: Driven disc to drive disc adjustment is set up  
at the factory. In case driven disc may need adjustment,  
proceed as follows:  
SLIDE DRIVEN DISC  
DRIVE  
ASSEMBLY TOWARD  
DISC  
A. Place speed control rod in the number six speed  
position. See Figure 11.  
OUTSIDE EDGE  
MOVE GROUND  
SPEED CONTROL TO  
SIX SPEED POSITION  
SIX SPEED POSITION  
SIX  
TRANSFER  
ROD  
OUTSIDE  
EDGE  
ONE SPEED  
ONE  
CONNECTOR HEX NUT  
POSITION  
FIGURE 13  
FIGURE 11  
3
STEP 10: Install the grass bag adapter and secure to  
the side of the deck with the two 5/16-18 nuts (P/N 9-  
0951) provided in the hardware bag. See Figure 14.  
SUPPORT ROD  
ROPE GUIDE  
NUT  
SECURE ADATER TO  
DECK WITH NUTS  
FIGURE 15  
SUPPORT ROD  
ON TOP OF ROPE  
GUIDE PULLEY  
6 MM HEX BOLT  
AND FLAT  
WASHER  
FIGURE 14  
STEP 11: KAWASAKI ENGINE. Attach support rod to  
deck adapter by first removing the nut and bolt at the  
rope guide pulley. Reassemble with the support rod  
underneath the pulley and the flattened end of the rod  
towards the engine. Attach the support rod to the top of  
the engine. Remove the nut and washer from the right  
rear corner of the recoil housing as shown. Place the  
support rod over the threaded engine stud. Install nut  
only (washer not needed) and re-tighten the nut. See  
Figure 15.  
FIGURE 16  
STEP 11: ROBIN 4-CYCLE ENGINE. The installation  
of the support rod on the Robin 4-cycle engine is  
saimilar to the installation on the Kawasaki engine  
described above. On the Robin installation, the rope  
guide end of the support rod is on top of the pulley and  
the flattened end is attached to the engine with a 6 MM  
hex bolt and flat washer (included in the hardware bag  
with the mower). A support rod is not required on  
mowers equiped with Robin 2-cycle engines. See  
Figure 16.  
4
IMPORTANT: DO NOT tip machine with carburetor or  
spark plug down. Oil from crankcase will saturate the air  
filter and cause the engine to be hard to start or not start  
at all. If contamination does occur, the air filter will have  
to be replaced.  
STEP 12: Fold bag opening into a "Z" and install slider.  
See Figure 17.  
GRASP SLIDER.  
PULL Z-FOLD INTO  
SLIDER  
STEP 14: Tip mower back against the upper handle to gain  
access to the underside of the cutting blade. Remove foam  
shipping block from cutting blade. This must be removed  
before starting the engine.  
PULL  
STEP 15: Pull blade control up against handle. Pull recoil  
rope out and route rope around pulley guide on bag adapter  
and loop rope into guide on upper handle. See Figure 18.  
FIGURE 17  
STEP 16: CHECKLIST: Complete all items on the Pre-  
Operation Checklist as instructed.  
STEP 13: Install grass bag on the mower. Slide bag  
connector over flange on the bag adapter. Attach grass  
bag handle to middle handle cross bar. See Figure 18.  
BLADE CONTROL  
HANDLE  
BAG CONNECTOR  
ROPE  
GUIDES  
FIGURE 18  
5
PRE-OPERATION CHECKLIST for SNAPPER  
21” STEEL DECK SERIES 12 WALK BEHIND MOWERS  
Snapper has completed initial adjustments and performed operational tests prior to shipping the machine. Due to  
the possible effects of shipping, handling and storage, Snapper intends for all of the following items to be  
verified and necessary final adjustments made at time of setup. It remains good practice and is strongly  
recommended that all the items also be checked prior to placing the machine into service. It is very important that  
setup is verified and all operational tests completed and results are acceptable. After completing this form, sign  
and retain for future reference.  
SET-UP (Details on Pages 1 through 4 of this Instruction)  
_____ FOAM SHIPPING BLOCK removed from cutting blade.  
_____ UPPER HANDLE & LOWER HANDLE secured in place and hardware tightened securely.  
_____ SIDE CHUTE or GRASS BAG installed on mower.  
_____ BLADE retaining bolt(s) checked and tighten securely.  
_____ GROUND SPEED LEVER installed and connected to drive system.  
LUBRICATION  
_____ ENGINE OIL added to bring level up to full mark on 4-cycle engines (Refer to Engine Manual).  
_____ OIL mixed with FUEL in specified ratio (2 Cycle Engines Only).  
_____ DIFFERENTIAL grease checked and added if needed.  
OPERATIONAL TEST  
_____ ENGINE started, engine control settings checked and adjusted as needed.  
_____ WHEEL DRIVE checked for proper operation and adjusted as needed.  
_____ CHUTE INTERLOCK checked to insure proper functioning.  
_____ GROUND SPEED control checked and adjusted as needed.  
CPSC (Consumer Product Safety Commission) COMPLIANCE TEST  
_____ BLADE CONTROL stops engine when released.  
CONSUMER INFORMATION  
Purchase Date ___________________ Model________________________ Serial No. _______________________  
Retailers Name ____________________________________ Signature_____________________________________  
Address ______________________________________ City ____________________ State ________ Zip ______  
MOWER WILL BE USED COMMERCIALLY? ______ YES _____ NO  
Purchaser’s Name __________________________________ Signature ____________________________________  
Address _____________________________________ City _____________________ State _______ Zip _______  
IMPORTANT: This form is to be retained for future reference regarding Warranty, proof of purchase, traceability  
for product recall or service, etc. Complete the Product Registration Card and Mail to Customer Service  
Department at SNAPPER, P.O. BOX 1379, McDonough, Georgia, 30253.  
INSTRUCTION No. 7-4361 (I.R. 2/16/01)  
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