Kunz Lawn Mower MR55B User Manual

57” ROUGH CUT  
MR55K  
MR55B  
OWNER’S MANUAL  
With Assembly Instructions  
For Models: MR55T, MR55B-17.5HP, MR55B-22-23HP & MR55K  
KUNZ ENGINEERING, INC. / MENDOTA, IL 61342 / PH (815) 539-6954  
1/09  
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IMPORTANT SAFETY INFORMATION  
WARNING: Do not allow anyone to operate this equipment who has not fully read and  
comprehended the safety manual and who has not been properly trained in the safe  
operation of the equipment.  
WARNING: Operator should be familiar with all functions of the unit.  
DANGER: Keep hands, feet, hair and clothing away from moving parts.  
WARNING: Remove all objects from the work area that might be picked up and thrown by  
the blades.  
WARNING: Do not mow when children and others are around.  
WARNING: Keep all safety shields and deflectors in place during operation.  
WARNING: Shut off the engine and allow the mower blades to come to a complete stop  
before making any adjustments to the mower.  
WARNING: Shut off engine before disconnecting the mower from the tow vehicle or  
attempting to move the mower by hand.  
WARNING: Never carry children or passengers.  
WARNING: Do not allow children to operate this machine.  
This entire manual is filled with important safety information. Please read it  
carefully.  
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SAFETY SIGNS AND LOCATIONS  
275003 – Danger  
275007 – Warning  
Decal, Cut Hand & Foot  
Decal, Belt Sheild  
275002 – Warning  
Decal, General  
Serial # and Model #  
Decal  
Clean or Replace Any Safety Signs That Are not Readable or Damaged  
Replacement decals can be purchased from your local dealer or  
Kunz Engineering Inc.  
Mendota, IL 61342  
(815) 539-6954  
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ASSEMBLY INSTRUCTIONS  
Read the complete assembly instructions before starting the assembly.  
You should have:  
- one mower deck assembly  
- two carrier arm assemblies  
- two rear tire assemblies  
- one ATV tongue assembly  
A. ASSEMBLY OF MOWER WHEELS  
1. Set the mower deck assembly on wood blocks so that it is suspended off the ground.  
Note: The operator controls are on the front of the deck. (Left and right are determined by  
looking in the direction of travel or by standing at the rear of the deck assembly looking  
forward.)  
2. Install the rear tire assemblies on the carrier arm assemblies. Remove the hex nut and lock  
washer from the rear tire assembly and install the 5/8”x7-1/2” tire axle bolt through the hole in  
the carrier arm assembly. See figure 1. Secure assembly with the lock washer and hex nut  
provided on the rear tire assembly. The rear tires should be offset to the outside of the deck  
assembly on both sides. See figure 2.  
3. Install the two carrier arm assemblies in the pivot arms, which are located on the mower deck  
assembly. Place the assembly so that the castered tires are on the front and the fixed tires are  
on the back. See figure 2. Secure with 1/2" x 3-1/2" hex head bolts and lock nuts provided on  
the pivot arms. Mount the height adjust screw on the deck assembly in the hole provided.  
Secure with the 1/2”x1” hex head bolt and lock nut provided on the height adjust screw.  
Note: Tighten 1/2” x 3-1/2” and 1/2” x 1” hex head bolts until just snug. This area needs to  
pivot when adjusting the height. Under tightening can result in excessive wear and  
flexing. Over tightening will make adjusting the cutting height very difficult.  
B. INSTALLATION OF TONGUE ASSEMBLY  
1. The tongue can be installed either on the left or right caster assembly depending on how the  
tow-behind mower will be towed. See figure 2. Secure the hitch pivot on the chosen caster  
assembly with the 1/2” x 3-1/2” hex head bolt, lock washer, and nut provided.  
2. Install the tongue into the hitch pivot and secure by placing the provided 5/16” wire lock pins on  
each side of the hitch pivot.  
Note: To help prevent any unwanted pin removal caused by oncoming debris install the 5/16”  
wire lock pins with the wire lock section back from the direction of travel. See Figure 3.  
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Carrier Arm  
Assembly  
Rear Tire  
Bolt  
Hex Nut and  
Lock Washer  
Cup Washer  
Flat Washer  
Figure 1: Rear Tire Assembly Installation  
Hitch Pivot – Attach to  
Either Left or Right  
Carrier Arm Assy.  
Tongue  
Height Adjust  
Screw  
Front (Rubber  
Flap Side)  
Rear Tire Assy.  
(Attach on outside for  
both left and right sides)  
Carrier Arm  
Assy.  
Pivot Arm  
Offset Position  
Direct Behind Position  
Figure 2: Assembly of Carrier Arm Assy., Hitch Pivot, and Tongue  
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Direction of Travel  
Screw Pin Shackle  
Clevis  
Shift Tongue Left or Right  
Between Holes  
Tongue  
5/16” Wire  
Lock Pins  
Wire Lock Section of  
Wire Lock Pin  
(Placed Back From  
Direction of Travel)  
Figure 3: ATV Tongue Assembly  
OPERATIONS AND ADJUSTMENTS  
This safety alert symbol is used to indicate safety instructions. Follow  
these instructions to avoid personal injury and/or property damage.  
Read and follow all instructions in this manual and the attached engine  
manual.  
WARNING: Do not allow anyone to operate this equipment who has not fully read and  
comprehended the safety manual and who has not been properly trained in the safe  
operation of the equipment.  
WARNING: Operator should be familiar with all functions of the unit.  
A. TONGUE CONFIGURATIONS AND ADJUSTMENTS  
WARNING: Shut off the engine and allow the mower blades to come to a complete stop  
before adjusting the tongue.  
The hitching system is designed so that the rough cut mower can be pulled directly behind a tow  
vehicle or offset to the left or right. See Figure 4.  
Note: When pulling the mower directly behind, the hitch pivot should be fastened on the right  
carrier arm for maximum maneuverability. See Figure 2. When pulling the mower in  
the offset position the hitch pivot can be fastened on either the right or left carrier arm.  
See Figure 2.  
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The tongue is equipped with a screw pin shackle clevis to provide movement in all directions on  
rough uneven ground. To prevent loss of the screw pin due to vibration or debris, place the screw  
pin through the tow vehicle hitch and clevis and turn the screw pin until snug.  
The tongue is designed to adjust from left to right within the hitch pivot. This allows the mowers  
position to be varied behind the tow vehicle. This is accomplished by pulling the 5/16” wire lock  
pins out and choosing two other hole locations on the tongue. See Figure 3.  
Directly Behind  
Offset  
Figure 4: Rough Cut Tow Behind Towing Suggestions  
B. ADJUSTING CUTTING HEIGHT  
WARNING: Shut off the engine and allow the mower blades to come to a complete stop  
before adjusting the cutting height.  
Adjustment Crank: Roughly 6  
turns equals 1.0”  
Mower Blade  
Lower Edge of  
Deck  
Measure This Distance  
and Add 1-5/16” to get  
Cutting Height  
Cutting Height  
1-5/16”  
Smooth Surface  
Figure 5: Adjusting Rough Cut Mower Cutting Height  
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The cutting height can be adjusted in a range from 2.0" to 8.0". This is accomplished by turning  
the height adjust cranks on both sides of the mower. See Figure 5. Turn the cranks clockwise to  
raise the mower cutting height and counter-clockwise to lower the mower cutting height.  
DANGER: Shut off tow vehicle engine and allow mower blades to stop completely before  
attempting to measure the cutting height.  
Adjust the mower as follows:  
1. Pull the mower on to a smooth, level surface.  
2. Adjust the mower evenly from side to side by measuring to the ground from the lower edge of  
the mower deck. The desired height will be the distance from the ground to the outside lower  
edge of the mower deck plus 1-5/16”. The mower blade cutting edge is 1-5/16” above the  
outside lower edge of the mower deck.  
Note: If the height adjust cranks do not turn easily, the pivot bolts holding the carrier arm  
assemblies and height adjust screw may be too tight. Loosen the pivot bolts slightly to  
allow easier pivoting. Care should be taken not to loosen too much or excess wear and  
flexing may occur. Greasing the threads may also allow greater ease in adjustment.  
Note: After leveling mower deck, quick field adjustment can be completed by counting crank  
turns. Roughly 6 turns will equal 1” of vertical movement.  
The adjustment crank may unturn due to vibration. This will allow the mower’s cutting height to  
change. The crank can be secured by folding it down between the adjustment nut tube and the  
upper pivot support. See Figure 6.  
Adjustment Crank  
Adjustment Nut Tube  
Carrier Arm  
Upper Pivot Support  
Figure 6: Securing Crank While Not In Use  
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C. STARTING ENGINE  
WARNING: Set parking brake on tow vehicle.  
Attach mower tongue to tow vehicle.  
WARNING: Do not start rough cut mower unless it is attached to the tow vehicle.  
Turn on fuel shut off valve which is located on the underside of the gas tank.  
Set the choke to the desired position.  
Set the throttle at approximately half throttle.  
Start engine and allow engine to warm up.  
Set engine speed at about half throttle and engage mower blades clutch handle. (The clutch  
handle is located at the front of the mower under the engine.)  
Note: Some belt squealing may occur on engagement. This is normal for a manual clutch  
engagement design.  
CAUTION: If the mower’s engine dies while in use, remove the rough cut mower from the  
uncut area before attempting to engage the clutch. Inspect the blades for any obstructions  
that may prevent blade engagement. Failure to follow these instructions may result in  
premature clutch and belt failure or a fire.  
Adjust engine speed to full throttle.  
D. SHUTTING OFF ROUGH CUT MOWER  
WARNING: Shift to neutral and set the parking brake before dismounting the tow vehicle.  
Slow the engine speed down and disengage the clutch handle.  
Allow engine to cool down for a short time before moving the ignition switch to the off position.  
Turn off fuel shut off valve which is located on the underside of the gas tank.  
E. MOWER OPERATION  
DANGER: Keep hands, feet, hair and clothing away from moving parts.  
CAUTION: Clean or replace any safety signs that are not readable or damaged.  
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WARNING: Remove all objects from the work area that might be picked up and thrown by  
the blades.  
WARNING: Do not mow when children and others are around.  
WARNING: Do not fill fuel tank while engine is running or hot.  
WARNING: Keep all safety shields and deflectors in place during operation.  
CAUTION: Remove grass build up from under safety shields before each use. Do not  
remove safety shields while engine is running. Dry grass build up around belts and  
sheaves can cause fires.  
WARNING: Shut off engine before disconnecting the mower from the tow vehicle or  
attempting to move the wing mower by hand.  
WARNING: Never carry children or passengers.  
WARNING: Do not allow children to operate this machine.  
CAUTION: Slow down and watch the ends of the mower when making turns so objects  
are not struck and/or run over.  
WARNING: Look down, to the sides, and behind before and while backing to avoid  
backing over something or someone. Care should also be taken while backing so that the  
wing mower or mowers do not jackknife and damage hitches.  
WARNING: Stop the mower blades on the mower if the tow vehicle becomes stuck or  
stops going forward because of loss of traction. Shut off the engine on the mower before  
attempting to push or pull the tow vehicle.  
Listen to the rough cut mower engine while mowing. The engine should run free and not work too  
hard. Working the engine too hard will cause overheating and premature failure.  
CAUTION: If the mower’s engine dies while in use, remove the rough cut mower from the  
uncut area before attempting to engage the clutch. Inspect the blades for any obstructions  
that may prevent blade engagement. Failure to follow these instructions may result in  
premature belt failure or a fire.  
Do not allow material to build up on the air inlet to the engine cooling system. Special care should  
be taken to make sure the engine is getting enough inlet air. Do not allow the engine cooling fins  
under the shroud to be blocked. If air flow over the engine is restricted, the engine could  
overheat.  
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F. DRIVE BELT REMOVAL AND TENSION – Refer to Figure 7  
WARNING: Shut off engine and allow mower blades to stop turning before making any  
adjustments or repairs.  
Remove the safety shields.  
Loosen the nuts on the spring-loaded idler; adjust bolt until the belt can be slipped off the idler and  
drive sheaves.  
Slip the belt down under the drive sheave and off the blade spindle sheaves.  
Install the new belt and then adjust the tension as follows: See Figure 7. Take special care to  
make sure that the belt is placed between the brake stud and the idler pulley.  
With the clutch engaged, adjust the nuts on the spring-loaded idler adjuster bolt until the length of  
the spring is between 2” and 2-1/8” (For models with 3” long spring) or 2-3/8” and 2-1/2” (For  
models with 4-1/2” long spring). This is the initial belt break in spring length. When the belt is  
broken in after several hours of mowing, the running spring length should be between 2-1/4” and  
2-3/8” (For models with 3” long spring) or 2-5/8” and 3-1/8” (For models with 4-1/2” long spring).  
For maximum belt life, periodic checks every 3-4 hours should be done to make sure the spring  
length has not exceeded the recommended running length.  
Note: Failure to periodically adjust the belt tension will result in severe belt wear and  
premature belt failure.  
This model comes with a belt brake, which is a safety feature that stops the blades from turning  
after the clutch is disengaged. The only time the brake should be in contact with the belt is when  
the clutch is disengaged.  
CAUTION: The brake stud must be adjusted. If the brake stud is not adjusted correctly,  
the blades will still spin even though the clutch may be in the disengaged position. Always  
shut mower engine off before servicing.  
Periodic brake stud inspections should be performed every 10 hours. In more severe cutting  
conditions, more frequent inspections may be necessary. There are two parts to inspecting the  
brake stud. Those two inspections are the disengaged spring length and brake stud clearance.  
Note: It is quicker to perform the disengaged spring length and brake stud clearance  
inspections if done simultaneously.  
Disengaged Spring Length:  
This inspection must be performed to make sure that there is proper braking force to prevent the  
blades from spinning when the clutch is in the disengaged position. With the clutch in the  
disengaged position measure the spring length. The spring must be between 2-5/8” and 2-7/8”  
(For models with 3” long spring) and between 3-1/4” and 4” (For models with 4-1/2” long spring) to  
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provide the appropriate braking force. If the spring length is to long it will be necessary to adjust  
the brake stud closer to the belt. If the spring length is to short it will be necessary to adjust the  
brake stud further away from the belt. To make brake stud adjustments loosen the bolt on the top  
of the brake stud and slide the brake stud in the slot. When the proper disengaged spring length  
is achieved, tighten the bolt on the top of the brake stud. For this procedure do not adjust the  
spring length. The spring length should only be changed when adjusting the belt tension.  
Brake Stud Clearance:  
This inspection is necessary to prevent over-braking. With the clutch engaged, check to make  
sure that there is at least 1/2” of clearance between the brake stud and the belt. If the clearance  
is less than 1/2” then it will be necessary to adjust the brake stud away from the belt. Keep in  
mind that the disengaged spring length must stay between 2-5/8” and 2-7/8” (For models with 3”  
long spring) and between 3-1/4” and 4” (For models with 4-1/2” long spring).  
CAUTION: If brake stud is not set in correct position, under-braking or over-braking may  
occur. If over-braking occurs, premature belt failure or a possible fire could occur due to  
excessive friction and overheating.  
Clutch Engagement  
Clutch Arm  
Front  
See Below For  
Recommended Spring  
Lengths  
Engine  
No Less Than 1/2” Clearance With  
Clutch Engaged  
Brake Stud  
0” With Clutch Disengaged  
Initial Spring Length: 2” – 2-1/16” (Models with 3” long spring), 2-3/8” – 2-1/2” (Models with 4-1/2” long spring)  
Running Spring Length: 2-3/4” – 3-1/4” (Models with 3” long spring), 2-5/8” – 3-1/8” (Models with 4-1/2” long spring)  
Disengaged Spring Length: 2-5/8” – 2-7/8” (Models with 3” long spring), 3-1/4” – 4” (Models with 4-1/2” long spring)  
Figure 7: Belt Pattern, Spring Adjustment, and Brake Adjustment  
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G. MOWER BLADE REMOVAL, BALANCING & INSTALLATION  
CAUTION: Sharp blades can cause bodily injury if not handled properly.  
When removing the blade, it is recommended that a block of wood be placed between the blade  
and the underside of the mower deck. This will allow the removal of the blade without the need to  
hold the blade by hand.  
CAUTION: Always balance the mower blades each time they are sharpened.  
Out of balance mower blades cause excess vibrations which lead to premature bearing failures,  
bolts coming loose, and overall deterioration of the wing mowers.  
CAUTION: Always properly tighten the blade bolts to the specified torque. Failure to do so  
can lead to unwanted loosening of the blade and damage to the blade holding saddle.  
The Models MR55K, MR55B and MR55T use the Kunz Engineering Part # (202141) blade bolt.  
This particular hex head bolt is a 3/4” – 16NF x 1-1/4” long, grade 5 and it’s proper torque is 300  
ft-lbs.  
To ease in the blade installation process, use the same block of wood and method used during  
the removal of the blades.  
H. LUBRICATION  
There are five lubrication points on the rough cut mower -- one spring-loaded idler pivot, two  
caster wheel pivots, and two blade spindles. Lubricate at approximately 10 hr. intervals or more  
often as required in dusty conditions. Lubricate the blade spindles 2-5 pumps every 50 hours.  
(The bearings have trash guard seals to hold the seals in place during lubrication.) Lubricate with  
a high grade of pressure gun grease.  
Note: Do not over grease blade spindles. Blade spindles are initially greased at the factory.  
Greasing before 50 hrs. may cause bearing seal damage which will result in premature  
bearing failure.  
I. STORAGE  
Turn off fuel shut off valve which is located on the underside of the gas tank. If the mower is  
stored outside, the engine should be covered to prevent water from getting inside the engine  
during heavy rainstorms. See the Engine Manual for additional information.  
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ACREASE ROUGH CUT MOWER SPECIFICATIONS  
Model  
Model  
Model  
Model  
MR55T  
MR55B-17.5HP  
MR55B-22-23HP  
MR55K  
ENGINE:  
Engine Make  
Tecumseh  
Briggs & Stratton  
Briggs & Stratton  
Kohler  
Engine Model  
Enduro OHV 170-EXE  
Intek AVS OHV  
Intek OHV  
Command OHV  
Cylinders  
1
1
2
2
Cycles  
4
4
4
4
Crankshaft  
Vertical  
Vertical  
Vertical  
Vertical  
Engine HP  
17  
17.5  
22-23  
20  
Bore  
3.56”  
3.57"  
2.97"  
3.03"  
Stroke  
3.00”  
29.9 cubic inches  
1.94 U.S. qt  
1.0”  
3.06"  
30.6 cubic inches  
1.5 U.S. qt  
1.0"  
2.89"  
44.0 cubic inches  
2 U.S. qt  
2.64"  
38.1 cubic inches  
2 U.S. qt  
Displacement  
Oil Capacity  
Crankshaft Dia.  
Key Slot  
1.0"  
1.0"  
1/4”  
1/4"  
1/4"  
1/4"  
Crankshaft Length  
Threaded Hole in End of Crankshaft  
Engine Mounting Bolts  
Starter  
3.15”  
3.15"  
3.15"  
3.15"  
7/16-20  
7/16-20  
7/16-20  
7/16-20  
3/8-16x1.00 Thread Rolling  
Electric  
5/16-18x1.50 Through Bolt  
Electric  
5/16-18x1.50 Through Bolt  
Electric  
5/16-18x1.50 Through Bolt  
Electric  
Choke  
Manual  
Manual  
Manual  
Manual  
MOWER:  
Fuel Tank  
3-3/4 Gal.  
57”  
3-3/4 Gal.  
57"  
3-3/4 Gal.  
57"  
3-3/4 Gal.  
57"  
Effective Cutting Width  
Deck Construction  
Cutting Height  
10 ga. Welded steel  
2” to 8”  
10 ga. Welded steel  
2" to 8"  
10 ga. Welded steel  
2" to 8"  
10 ga. Welded steel  
2" to 8"  
Height Adjustment  
Rear Wheels (Fixed) (4 ply Turf Pnuematic)  
Front Wheels (Caster) (4 ply Turf Pnuematic)  
Blade Dia.  
2 Cranks  
2 Cranks  
2 Cranks  
2 Cranks  
Two 15/600 x 6  
Two 5.30/4.50 x 6  
2-30”  
Two 15/600 x 6  
Two 5.30/4.50 x 6  
2-30"  
Two 15/600 x 6  
Two 5.30/4.50 x 6  
2-30"  
Two 15/600 x 6  
Two 5.30/4.50 x 6  
2-30"  
Engine Speed, Blades Running  
CLUTCH TYPE  
Engagement Speed  
DIMENSIONS  
3600 RPM  
3600 RPM  
3600 RPM  
3600 RPM  
Manual  
Manual  
Manual  
Manual  
Length  
98”  
60”  
98"  
60"  
98"  
60"  
98"  
60"  
Width  
Height  
29”  
29"  
29"  
29"  
Weight  
515 lbs  
550 lbs.  
580 lbs.  
580 lbs.  
HITCH  
Hitch Type  
ATV Tongue  
ATV Tongue  
ATV Tongue  
ATV Tongue  
TOUCH-UP PAINT COLOR  
Pewter Gray, Krylon #1606  
Pewter Gray, Krylon #1606  
Pewter Gray, Krylon #1606  
Pewter Gray, Krylon #1606  
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ACREASE ROUGH CUT MOWER PARTS LIST  
Item Part #  
Description  
Quantity  
1
2
3
4
5
5
6
7
8
214021  
216002  
216009  
222005  
225003  
225005  
226003  
226004  
238004  
241001  
241009  
241010  
258022  
Cup Washer  
Wire Lock Pin, .31" x 2.50"  
Screw Pin Shackle Clevis  
6
2
1
2
1
1
2
2
1
1
1
1
2
Worm Drive Hose Clamp (7-7/8" to 9-1/8" Clamping Dia.)  
Compression Spring, 3"L x 1-3/32" O.D. x .135" Wire dia.  
Compression Spring, 4.50"L x 1-3/32" O.D. x .125" Wire dia.  
Offset Wheel Assy. (15/600 x 6, 2 Ply Turf)  
Centered Wheel Assy. (5.30/4.50 x 6, 2 Ply Stud)  
"V" Belt, .62" x 95.9" O.C.  
Flat Idler, 4" O.D. x 3/8" Hole  
Flat Idler (Steel), 4" O.D. x 1/2" Hole  
"V" Sheave, 5" Dia. 1" Bore  
9
10  
11  
12  
Spindle Assy.  
900075 Spindle Shaft (1)  
900160 Housing Assy. (With Two Bearings) (1)  
243006 Bearing (6206 w/ Trash Guard Seals) (2)  
600271 Bearing Spacer (3.33" Long) (1)  
241008 Sheave, (7-1/2" Dia., B-Section) (1)  
13  
14  
15  
16  
17  
17  
17  
18  
18  
18  
19  
19  
19  
19  
19  
19  
19  
19  
20  
21  
22  
23  
24  
24  
25  
26  
27  
28  
29  
30  
259002  
Offset Mower Blade, 2-1/2" Wide, 30" Long, 3/4" Hole  
Solenoid (Only on Models MR55B-17.5HP, MR55B-22-23HP & MR55T)  
Hour/Tack Meter  
2
1
264000  
264003  
264010  
269000  
269007  
269010  
269001  
269008  
269009  
275001  
275002  
275003  
275011  
275007  
275019  
275021  
275022  
277002  
277010  
277011  
277013  
600071  
600173  
600126  
600133  
600136  
600142  
600143  
600146  
Optional  
Ignition Switch  
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
6
1
1
1
1
1
1
2
1
2
1
2
Choke Control, 20" (Model MR55B-17.5HP & MR55T)  
Choke Control, 22.5" (Model MR55K)  
Choke Control, 27" (Model MR55B-22-23HP)  
Throttle Control, 15" (Model MR55B-17.5HP & MR55T)  
Throttle Control, 46" (Model MR55K)  
Throttle Control, 27" (Model MR55B-22-23HP)  
Control Panel Decal, Starting Instructions  
Warning Decal General  
Danger Decal, Cut Finger  
Clutch Engagement Decal  
Warning Decal, Belt Sheild  
Name Decal,Kunz  
Name Decal, AcrEase  
Name Decal, 57" Rough Cut  
Rubber Gromet  
Fuel Tank, 3.75 Gal. (Plastic)(Use Gas Cap 277013)  
Handle Grip  
Gas Cap (For Fuel Tank 277010)  
Spacer, 1.38" O.D. x 1.33" Wall x 2.19" Long (MR55B & MR55T)  
Spacer, 1.38" O.D. x 1.33" Wall x 2.25" Long (MR55K)  
Flap Retainer Strip  
Belt Sheild  
Brake Stud  
Upper Pivot Support  
Safety Belting  
Crank Arm  
15  
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Item Part #  
Description  
Quantity  
31  
32  
33  
34  
35  
36  
37  
38  
600189  
900023  
900049  
900058  
900061  
900062  
900063  
900065  
Idler Spacer Block  
Control Panel  
Battery Box Assy.  
Hitch Pivot  
Pivot Arm  
Height Adjust Nut  
Clutch Arm  
1
1
1
1
4
2
1
1
2
2
1
1
1
1
1
2
4
2
2
Idler Arm Assy.  
243005 Bronze Bearing, 1/2"I.D. x 3/4" O.D. x .75" Long  
900066  
39  
40  
41  
41  
42  
43  
44  
Screw Adjuster  
Mower Deck  
Engine Support Bracket (Model MR55B-17.5HP & MR55T)  
Engine Support Bracket (Model MR55K & MR55B-22-23HP)  
Tank Support  
Tongue  
Carrier Arm  
900069  
900071  
600172  
900079  
900082  
900106  
243010 Plastic Bearing, 1-3/8" O.D. x 1.00" I.D.  
900148  
222012 Single Split Collar (1" I.D. x .1/2" Thick)  
45  
Caster Fork  
16  
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ACREASE ROUGH CUT MOWER PARTS  
17  
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OPTIONAL EQUIPMENT  
OPTIONAL WETLANDS KIT  
The optional wetlands kit features an extra set of tires for added ground support in soft or water  
saturated areas. The following are applications and features that the wetlands kit works best in.  
Great for wetlands or marshy areas that stay wet all year around.  
Works well in combination with small personal amphibious vehicles or tracked ATVs.  
More than doubles the tire surface area in contact with the ground.  
Very easy to install bolt-on kit.  
Works on all existing and new rough cut mowers.  
The rough cut mower will not float with the wetlands kit installed. Water greater than 2-3" in  
depth should be avoided.  
With the Wetlands Kit installed the minimum cutting height is 3.5” – 4”.  
Wetlands Kit (Part # 003905)  
18  
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OPTIONAL EQUIPMENT  
OPTIONAL ELECTRIC LIFT KIT  
The optional electric lift kit consists of all of the mounting hardware, brackets, electric actuator and  
wiring with remote control panel.  
Great for constantly changing terrain and grass/brush heights.  
Allows for quick cutting height changes on the go from the seat of the tow vehicle.  
Raise up and over rocks and logs with ease.  
Heavy duty 1500 lb linear screw actuator made by Linak.  
Works on all existing and new rough cut mowers.  
Electric Lift Kit (Part # 003909)  
19  
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OPTIONAL EQUIPMENT  
OPTIONAL FLOATATION KIT  
The optional floatation kit consists of one additional front and rear tire, mounting brackets and  
hardware.  
Great for mowing around ponds and on rough uneven ground where scalping would normally  
occur.  
Clamping style receiver allows for adjustments from side to side with both the front and rear  
tires.  
Pinned receivers make for quick kit removal when not needed.  
Works on all existing and new rough cut mowers.  
Part numbers needed for standard manual lift rough cut models.  
Rear Floatation Kit (Part # 003907)  
Front Floatation Kit (Part # 003908)  
Cross Brace Tube (Part # 900113) (Purchase one brace for each front and rear kit)  
Part numbers needed for rough cut models with the electric lift kit.  
Rear Floatation Kit (Part # 003907)  
Front Floatation Kit (Part # 003908)  
20  
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