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24

Regular Maintenance

Check / Fill Transmission Oil

Oil Type:  

20W-50 conventional detergent motor oil. 

 1.  Check the oil level when the unit is cold.  Locate the 

transmission oil reservoirs (A, Figure 15) located on 
the by the fuel tank.  The oil should be up to the “FULL 
COLD” mark (B).  If the oil is below this level, proceed 
to step 2.  

 2.  Before removing the reservoir caps, make sure the area 

around the reservoir cap and fill neck of the reservoir is 
free of dust, dirt, or other debris.  Remove the reservoir 
cap.  

 3.  Add oil up to the “FULL COLD” mark (B).  

 4.  Reinstall the reservoir caps.

Transmission Oil Filter Change

Change Interval:

 Every 200 Hours

Replacement Filter Number:

 5101026X1

 1.  Locate the transmission oil filters (A, Figure 

16) underneath the rear of the machine on the 
transmissions.

 2.  Remove the three 1/4” filter guard screws (C) and the 

filter guard (B).

 3.  Clean the area around the filter base and remove the 

filter.

 4.  Apply a film of new oil to the gasket of the new 

replacement filter.  After the oil has drained, thread the 
new filter onto the filter base until the gasket makes 
contact, then tighten 3/4 of a turn more.

 5.  Reinstall the filter guard with the three 1/4” filter guard 

screws

 6.  Using a hex bit swivel socket or a modified allen wrench 

remove the top port plug from the transmissions. 

 7.  Remove the transmission reservoir cap and fill with oil 

until oil appears at the bottom of the transmission’s top 
port (approximately 2 qts (1,89L).

 8.  Reinstall the top port plug and tighten to 15 ft lbs (20,38 

Nm).

 9.  Continue to add oil to the transmission oil reservoirs 

until the oil level reaches the “FULL COLD” mark. 
Reinstall the oil reservoir cap.

 10. Repeat this process for the other side of the machine.

11. Run the unit for several minutes and check the 

transmission oil level.  

IMPORTANT NOTE: Use caution after changing 
the filter; air in the hydraulic system may affect the 
responsiveness of the ground speed control levers.  
Repeat step 11 until the air is out of the system.

Figure 16.  Transmission (Left Side Shown.)
A. Transmission Oil Filter
B. Filter Guard
C.  1/4” Filter Guard Screws
D. Top Port Plug

A

B

C

D

Figure 15.  Transmission Oil Reservoir (LH Shown)
A. Transmission Oil Reservoir
B. “FULL COLD” Mark

A

B

Not 

for  

Reproduction

Summary of Contents for SW20 Series

Page 1: ...S STRATTON POWER PRODUCTS GROUP LLC 5375 NORTH MAIN STREET MUNNSVILLE NY 13409 800 933 6175 5101263 Rev H Model Number Description 5900700 SW20KAV1748 48 Cut Walk Behind Mower 5900702 SW20KAV1336 36 C...

Page 2: ...ct We re pleased that you ve placed your confidence in the SNAPPER PRO brand When operated and maintained according to the instructions in this manual your SNAPPER PRO product will provide many years...

Page 3: ...er Change 22 Lubrication 23 Check Fill Transmission Oil 24 Transmission Oil Filter Change 24 Servicing the Mower Blades 25 Neutral Adjustment 27 Speed Balancing Adjustment S N 2014523387 Below 27 S N...

Page 4: ...sen ask a professional contact your local authorized dealer Read the Manual The operator s manual contains important safety information you need to be aware of BEFORE you operate your unit as well as...

Page 5: ...be thrown by the blade BEFORE you start mowing Do not operate this unit without the entire grass catcher or discharge guard deflector in place Also do not allow anyone in the area while the unit is ru...

Page 6: ...oke while operating or refueling Do not add fuel while engine is hot or running Allow engine to cool for at least 3 minutes prior to adding fuel Do not add fuel indoors in an enclosed trailer garage o...

Page 7: ...loading or unloading the machine into a trailer or truck TRAINING 1 Read understand and follow all instructions in the manual and on the unit before starting If the operator s or mechanic s can not r...

Page 8: ...on steep slopes CHILDREN Tragic accidents can occur if the operator is not alert to the presence of children Children are often attracted to the unit and the mowing activity Never assume that childre...

Page 9: ...o stop before adjusting cleaning or repairing 9 Clean grass and debris from cutting units drives mufflers and engine to prevent fires Clean up oil or fuel spillage 10 Let engine cool before storing an...

Page 10: ...the safety decals The cautions and warnings are for your safety To avoid a personal injury or damage to the unit understand and follow all safety decals WARNING If any safety decals become worn or dam...

Page 11: ...n the NEUTRAL position and the operator must engage the operator presence handles in order to start the engine Safety Icons The alert symbol is used to identity safety information about hazards that c...

Page 12: ...E Compliance Logo F Year of Manufacture G Maximum Engine Speed in Rotations Per Minute H Power Rating in Kilowatts I Mass of Unit in Kilograms J Sound Power in Decibels This unit complies with Europea...

Page 13: ...ols the forward ground speed of both drive wheels The left reverse speed control lever controls the steering and reverse ground speed of the left drive wheel The right reverse speed control lever cont...

Page 14: ...ke ENGAGE Locks the parking brake Pull the parking brake handle up to engage the parking brake Push the parking brake handle down to disengage the parking brake NOTE To start the unit the parking brak...

Page 15: ...s Before Starting Check that crankcase is filled to full mark on the engine oil dipstick B Figure 3 See the engine Operator s Manual for instructions and oil recommendations Fill the fuel tank A with...

Page 16: ...pulling the transmission release levers rearward and inward to release them from the disengaged position and then allow them to move to the engaged drive position Figure 5 Transmission Release Levers...

Page 17: ...p 4 See Figure 8 If you are adjusting the cutting height range between 1 1 2 3 8 cm and 2 3 4 6 9 cm position the belt in the lower pulley on PTO clutch If you are adjusting the cutting height range b...

Page 18: ...ISE to lower the deck to the desired cutting height After the desired cutting heights are achieved position the cutting height adjustment handles into the handle lock position 2 Repeat the process for...

Page 19: ...forward until desired speed is achieved To Move Backward 1 Disengage the parking brake 2 Gently squeeze both reverse speed control levers B evenly until desired speed is achieved To Slow or Stop Mach...

Page 20: ...fe of your machine Height of Grass Often cutting height is a matter of personal preference Typically you should mow the grass when it is is between three and five inches high The proper cutting height...

Page 21: ...will improve the cutting efficiency of the blades and prevents many common cutting problems Use an appropriate ground speed for the thickness and height of the grass you are cutting 3rd gear or slower...

Page 22: ...dcasting side discharging or grass bagging operation Engine Speed Ground Speed for Mulching Use full engine throttle matched with a slow ground speed so that clippings will be finely cut Ground speed...

Page 23: ...100 Hours Every 200 Hours Spring Fall Check Unit for Loose Hardware Clean Deck Check Replace Mower Blades Lubricate Mower Mower Deck Check Tire Pressure Check Hydraulic Oil Change Hydraulic Oil Filte...

Page 24: ...engine oil filter C Remove the engine oil filter and replace with a new one 6 Remove the oil dipstick D and refill with oil Refer to the engine operator s manual for oil recommendations 7 Remove the...

Page 25: ...pedal pivots Figure 14 Front Caster Wheel A 1 4 28 Bolt A Generally all moving metal parts should be oiled where contact is made with other parts Keep oil and grease off belts and pulleys Remember to...

Page 26: ...new filter onto the filter base until the gasket makes contact then tighten 3 4 of a turn more 5 Reinstall the filter guard with the three 1 4 filter guard screws 6 Using a hex bit swivel socket or a...

Page 27: ...harp or have nicks sharpen the blades See Sharpening the Mower Blades Figure 17 Loosening the Mower Blade for Removal Figure 18 inspecting the Mower Blade Tips A Mower Blade Cutting Edge B Square Corn...

Page 28: ...zontal position Reinstalling the Mower Blades 1 Reinstall each mower blade with the air lifts pointing up towards the mower deck as shown in Figure 22 Secure with the mower blade mounting bolt and fla...

Page 29: ...ved NOTE This adjustment should not be performed while the machine is running It may take several attempts to achieved neutral depending upon how much the machine creeps Speed Balancing Adjustment 201...

Page 30: ...sed together to turn the rod and the third is used to lock the rod in place 1 Loosen the jam nut that locks against the clevis 2 Turn the linkage rod COUNTER CLOCKWISE to reduce the speed 3 Retighten...

Page 31: ...he rear of the machine 3 With the parking brake engaged measure the compressed spring length of the brake spring The spring should be 2 3 8 6 03 cm when compressed If not position the lock nut until t...

Page 32: ...st the deck to the 3 7 6 cm position 3 Repeat process for other side of machine NOTE Both sides of the deck must be adjusted to the same height 4 Place 2 x 4 blocks under the rear of the mower deck wi...

Page 33: ...he belt exerted from the idler arm 4 Slide the mower drive belt over the edge of the stationary idler pulley C Carefully release the tension on the breaker bar Figure 29 Remove the Mower Belt A Breake...

Page 34: ...stationary pulley C Figure 29 Carefully rotate the breaker bar counter clockwise and install the belt on the stationary idler pulley Carefully release the tension on the breaker bar 7 36 Models Using...

Page 35: ...o completely release the tension 5 Remove the old belt and replace it with the new one Make sure the V side of the belt runs in the grooves of the crankshaft pulley and transmission pulleys B C 6 Rein...

Page 36: ...pressure to depress both handles Handle Placement Adjustment Later Models Only There should be approximately 1 2 54 cm fo clearance in between the handle bars and the reverse speed control levers whe...

Page 37: ...left in unit disconnect the negative cable 10 Drain fuel system completely or add a gasoline stabilizer to the fuel system If you have chosen to use a fuel stabilizer and have not drained the fuel sy...

Page 38: ...8 Spark plug s faulty fouled 11 Clean and gap or replace or incorrectly gapped See engine manual 9 Water in fuel 12 Drain fuel replace with fresh fuel 10 Gas is old or stale 13 Drain fuel replace with...

Page 39: ...d 1 See authorized service dealer for repair or damaged Engine stalls easily with 1 Engine speed too slow 1 Set to full throttle mower deck engaged 2 Ground speed too fast 2 Decrease Ground Speed 3 Cu...

Page 40: ...tly 2 Tires are not properly inflated 2 Check and inflate the tires 3 Blades are damaged 3 Replace the blades 4 Deck shell is damaged 4 Repair or replace the deck 5 Mower spindle is bent or loose 5 Re...

Page 41: ...and air cleaner installed whereas gross power values are collected without these attachments Actual gross engine power will be higher than net engine power and is affected by among other things ambie...

Page 42: ...e pole a fence post or any vertical structure 3 Compare the angle of the fold with the angle of the hill SLOPE INDENTIFICATION GUIDE ALIGN THIS EDGE WITH A VERTICAL SURFACE TREE POLE FENCE POST BUILDI...

Page 43: ...Notes N o t f o r R e p r o d u c t i o n...

Page 44: ...Notes N o t f o r R e p r o d u c t i o n...

Page 45: ...N o t f o r R e p r o d u c t i o n...

Page 46: ...ize to you for being inconvenienced Warranty service is available only through SNAPPER PRO Authorized Service Dealers Most warranty repairs are handled routinely but sometimes requests for warranty se...

Page 47: ...respects to the engine described in the manufacturer s application for certification The warranty period begins on the date the engine is originally purchased The warranty on emissions related parts...

Page 48: ...Operator s Manual SW20 Series Walk Behind Mowers BRIGGS STRATTON POWER PRODUCTS GROUP LLC 5375 NORTH MAIN STREET MUNNSVILLE NY 13409 800 933 6175 N o t f o r R e p r o d u c t i o n...

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