PowerTek 16-20 P Manual

16-20 SP/16-20 PT POWERTEK
Model 16-20 P/16-24 P/16-20 SP/16-31SP
Stump Grinders
Operation & Maintenance Manual
PowerTek Inc.
P.O. Box 3
Lebanon, In. 46052
1-877-769-7835
2-23-09

TABLE OF CONTENTS POWERTEK
TABLE OF CONTENTS
WARNINGS SAFETY...........…...............................................……………………………….2-3
HOW TO USE YOUR STUMPER...........………..........................………....………………….4
WORK ZONE............................……………….……………………………….………………..5
INITIAL INSPECTION...........................................................………………………………….6
TRANSPORTATION & SET-UP......................………….………………………..................6-7
OPERATION.....................................................................…………………….….………….7-10
STARTING............................................................................……………………………………7
GRINDING STUMPS..........................................................…………………...………………..8
ADJUSTABLE HANDLE FREIGHT....................................................…………………….…8
DIRECTIONAL CONTROL…………….......................………….........................….………...9
STOPPING......................…………………………………………………….…………………10
MAINTENANCE...............................................................……………………….………...11-14
ENGINE.......................................................…………………………….………………….…...11
FUEL....................................................................................………………………………….....11
BATTERY.................................................................................……………………..……….....11
BELTS.......................................................................................…………………....…………....11
CUTTER BELT REPLACEMENT...................................................…………...…………….11
HYDROSTATIC DRIVE BELT REPLACEMENT...........................………..……………...11
HOUR METER………………………………………………………………………………....11
SHARPENING CUTTERS............................................................…………………………….12
REPLACING CUTTERS...................................................................…………….…………...13
TOOTH GAUGE......................................................……………........…………………..….…13
CUTTER WHEEL BEARINGS..........................................................…………….………….13
HYDRAULIC OIL............................................................................…………….…………….14
MAINTENANCE SCHEDULE........................................................……………………..…...14
EXPLODED VIEW 16/20 SP & 16/24 SP............................................……………………….15
PARTS LIST 16/20 SP & 16/24 SP.........................…………………………….…………......16
EXPLODED VIEW 16/20 P & 16/24 P....…....................................………………….…..…..17
PARTS LIST 16/20 P & 16/24 P.................................................………………….………......18
ELECTRICAL SCHEMATICS…………...............................................……………………..19
WARRANTY INFORMATION.............................................….……………………..…...20-21
1

WARNINGS POWERTEK
! WARNING
WARNING TO PURCHASERS OF INTERNAL COMBUSTION ENGINE EQUIPPED MACHINERY
OR DEVICES IN THE STATE OF CALIFORNIA:
The equipment that you have purchased does not have a spark arrester muffler. If this equipment is to be
used on any forest or brush covered land or grass covered un-improved land in the State of California, the
law requires that a spark arrester muffler be installed and be in effective working order. The spark
arrester must be attached to the exhaust system and comply with Section 4442 of the California Public
Resource Code.
The engine exhaust from this equipment contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
! WARNING
This manual contains vital information for the safe use and efficient operation of this equipment.
Carefully read this operation maintenance manual before using this equipment, as failure to adhere to the
instructions could result in death, serious bodily injury and/or property damage.
The Stump Grinder is to be used only for grinding tree stumps. Using this machinery for any other
purpose may cause injury and or property damage. Improper use of the grinder will void the
warranty.
2

3
SAFETY POWERTEK
1. Read the entire owner's manual carefully before operating the stump
grinder. Also, read the entire Engine Operator's Handbook. Familiarize
yourself with the, proper use of the Stumper. Know the controls and how to
stop quickly.
2. Do not allow children to operate the stump grinder. Do not allow adults to
operate the stump grinder without proper instruction- Do, not allow anyone to
operate the stump grinder who is not acquainted with the Safety Instructions.
3. Be especially watchful of children and pets darting into the operating area
and/or danger zone.
4. Wear protective clothing-long pants and heavy work boots as well as ear
and eye protection while operating the Stumper.
5. Keep your mind and eyes on the machine while operating it. Do not let others
distract you.
6. Check the stump grinder for any loose parts before operating.
7. Never place hands or feet anywhere near the cutter blade. The blade is larger
than it appears when it is operating.
8. Make sure you are aware of the location of any pipes (water, gas, electrical,
etc.) above or below the ground.
9. Clear the work area of all foreign objects such as sticks stones wires, etc.
10. Turn off clutch before moving
11. Never operate the unit without the safety guards in place and operating
properly. Keep equipment in good working condition.
12. Take all possible precautions when leaving unit unattended. Stop engine
and remove ignition key to prevent unauthorized use.
13. When refueling machine: shut off engine, do not smoke or allow any hot or
burning material near.
14. Before removing or replacing teeth or belts, or before performing any
maintenance: shut off engine and wait for all moving parts to stop,
disconnect spark plug wire' and remove key.
15. Stability: The stump grinder has a narrow wheelbase and can become
unstable under adverse conditions. Always go straight up or down on steep
hills. Avoid steep side angles. When grinding avoid dropping one wheel into a
hole to avoid a side tip of the unit.
16. When stump grinder is being transported on a trailer or in a truck make sure
the machine is securely fastened to prevent property damage.

STUMP GRINDER USAGE POWERTEK
BEFORE YOU CUT:
Before you start to grind the stump, remove all debris-dirt, rocks, metal, and loose wood-
from around the area of the stump before the first cut. Be sure to remove any debris that may also
be embedded in the tree stump itself. Debris can wear or damage the cutting teeth and can be a
safety hazard. If the teeth meet these foreign objects, the stump cutter can propel these objects
great distances.
Before you start the machine, become familiar with all of the controls on the stump
grinder. Locate the key switch, throttle, choke, presence handle, brake and forward or reverse
lever. Check to see if the debris curtains and guarding are in place to help reduce flying objects.
Take time to read all the decals and warnings that are on the machine. Read the operation and
maintenance manual, it will give you information that can save you time as well as prevent
serious injury.
Make sure the teeth on the cutter wheel are in good shape. Inspect them for sharpness,
freedom from nicks, and damage. Teeth can wear down quickly causing performance problems
as well as lost productivity.
When you are finished, lift the cutter wheel from the stump before shutting the engine off.
OPERATION:
The type of wood will determine how much to cut at one time. Softer woods such as
pines or firs are easier to remove than harder woods such as elm, oak, ash or maple. For harder
wood, take shallow cuts. Cutting harder woods will dull teeth faster, therefore, be prepared by
having an extra set of teeth available.
If the stump is on a hill, level the area where the stump grinder will be setting. If grinding
is attempted without leveling, the stumper could tip over. Also, engage the cutter wheel before
allowing the cutter wheel to touch the stump.
Do not take large cuts. The recommendation is to take 1-inch deep cuts and then sweep
side to side. Cuts deeper will not only slow productivity but could cause damage to the machine
as well as personnel injury. Also, start at the front of the stump and work toward the center. If the
stump is very large, it may be necessary to work from more than one side.
When grinding you may go as low as 12 inches below ground level. Make sure to clear
away all dirt, rocks, and debris before you continue to grind.
SAFETY TIPS:
The stump grinder is a powerful machine and can throw debris. Be prepared by wearing
protective clothing such as gloves, ear protection, eye protection, long pants, and heavy boots.
Never leave the operating position while the machine is engaged in a stump.
Make sure there is no one near the machine while it is in use. Use signs and/or barricades
to restrict pedestrian traffic around the danger zone. Keep all children away from the stump
grinder and the work area.
4

WORK ZONE POWERTEK
5
! WARNING
When operating grinder do not allow anyone to be in the danger zone while stump
grinder is running or serious injury or death may occur.

INITIAL INSPECTION POWERTEK
INSPECTION
Upon receiving your stump grinder, inspect and report any shipping damage to the carrier immediately. PowerTek is
not responsible for damage during transportation.
TIRES
Inflation pressure may change with temperature and or altitude. Check and adjust tire pressure to the tire
manufacturer's recommended tire pressure as marked on the tire of the stump grinder.
BATTERY
As a safety precaution, the positive cable has been disconnected from the battery. Remove the unit from the
shipping pallet, reconnect the cable to the terminal, and charge the battery.
ENGINE
The stump grinder engine was shipped from PowerTek with the proper amount of oil. However, you should double-
check the level and add to or change the oil if conditions warrant. (see Engine Operators Handbook for full details).
HYDRAULIC DRIVE
The hydraulic transmission and gear reducer are shipped with the proper amount of oil. Again, double check the
levels and add to the level if needed.
PRE-USE INSPECTION
Check for any loose bolts or parts before starting or first use.
PREPARATION:
Unit should not be operated until the owner's manual is read, all safety decals are noted and the user has complete
knowledge of all controls.
TRANSPORTATION & SET- UP POWERTEK
TRANSPORTATION
It is the responsibility of the owner and/or operator to be aware of and abide by all applicable state and
local regulations regarding transport of equipment and trailers (i.e. lights, tags, registration, etc.). Pick-up
truck or similar vehicle may be used to transport the machine. The stump grinder may also be transported
on any suitable trailer. Make sure it is properly secured.
SET-UP
The following procedures should be performed before each use of the stump grinder.
Check the unit for any loose parts. Tighten nuts and bolts and make sure all safety guards and devices
(Belt Guard, Brakes, Kill Switch and Clutch Switch) are securely in place and working. Please check all
cutters to make sure they are tight.
Check the cutters for dulling. It is important to keep cutters sharpened by grinding or replacing them.
Dull cutters will cause excessive engine wear and poor performance. See the Maintenance Instructions for
details.
Check the oil and fuel level in the engine. Follow the Engine Operators Handbook if fluid needs to be
added or changed.
Check the air filter. The air filter should be cleaned of dust regularly. See the Engine Operators
Handbook for details.
Check the tension of the engine belts. The cutter wheel belts should have a deflection at the center of
3/8", under 15-lbs. deflection. Recheck belt tension after every use.
6

TRANSPORTATION & SET-UP (Cont.) POWERTEK
Check the hydraulic oil level. See the Maintenance Instructions for checking the hydraulic oil
level.
Gas Tank Vent. When operating the stump grinder, make sure the gas tank vent is open. (It is
threaded vent.) If the vent is not open the stump grinder will not run properly. Close Vent when
transporting the stump grinder or re-fueling the gas tank (Fig. 1).
(Fig. 1)
OPERATION POWERTEK
STARTING (Fig. 2 & 3)
1. Turn the electric clutch switch off. The engine will not start if the clutch switch is on.
2. Pull the choke all the way out.
3. Slide the throttle to about 1/4 throttle.
4. Depress the operator presence control bar and turn the ignition switch until you hear the
engine start.
5. Keep the control bar depressed and push the choke back in.
Important Note: The control bar is designed as a safety feature. The engine will
not start or operate without depressing the presence control bar.
7
(Fig. 2) (Fig. 3)

OPERATION POWERTEK
GRINDING STUMPS
1. Start the engine according to instructions
2. Use the throttle to gradually bring the RPM’s up to full speed.
3. To move the stump grinder, gradually push the drive handle forward. Full handle forward is
walking speed. Pull back on the drive handle to travel in reverse.
4. Position the cutter wheel over the front edge of the stump and set the brake. You may need to
adjust the handle position for better leverage depending on the height of the stump.
5. Once you have maneuvered the stump grinder near a stump, turn the clutch switch on to
engage the cutter wheel. When the engine is cold, you may have to flip clutch switch off and
on quickly to keep the engine running.
6. Slowly lower the stump grinder until the wheel comes in contact with the stump. Move the
stump grinder back and forth in a long slow sweeping motion. Maintain the same elevation
until a section has been removed, then lower stump grinder to take out the next section and
continue until the front part of the stump is removed.
7. When the front part of the stump has been removed, release the brake and move the grinder
forward to the new edge, and reset the brake.
8. Repeat Steps 6 and 7 until the stump is completely removed. Do not exceed 12" below ground
level or 18" above the ground.
9. Turn the clutch switch off and wait for the cutter wheel to stop spinning before moving.
Important Note: For better performance and to avoid excessive clutch wear, run the engine at full
throttle during operation.
ADJUSTABLE HANDLE HEIGHT
The handle can be raised or lowered to provide different leverages to better handle
different stump heights. (Maximum stump height 18" above ground. Maximum
below ground cut is 12")
! CAUTION
Shut off engine and wait for all moving parts to stop before adjusting handle.
TO ADJUST THE HEIGHT:
Holding the handle firmly, pull the handle lock pin to unlock the handle. Raise or lower the
handle as needed and let the lock pin slip back into one of the holes in the bracket.
To lock the handle in the towing position:
1. Remove the handle fold-up link from the info tube.
2. Push the handle all the way forward and hold it firmly in its upright position.
3. Slide the link (hole end) onto the handle lock pin and slide the other end (peg end) into the
topmost hole of the bracket.
4. Replace the hairpin cotters in the lock pin and link.
8

OPERATION POWERTEK
DIRECTIONAL CONTROL (SP)
The drive system consists of a hydrostatic transmission and differential axle assembly. The
hydrostatic control lever at the handle bar, controls forward and reverse, and automatically
returns to neutral or stop when released. Always 'feather" the finger control lever-easing it into
the direction desired. Pushing the control lever forward propels the grinder forward, pulling the
control lever back reverses the grinder (Fig. 4).
! CAUTION
Pushing the hydrostatic lever full forward may cause stump grinder to jump forward,
injury or property damage may occur. Use light pressure on hydrostatic lever to
maintain proper control of stumper.
!
(Fig. 4)
9

OPERATION POWERTEK
BY PASS CONTROL (SP)
The hydrostatic also has a 'by-pass" control which enables the operator to manually move the
machine when desired. This control is located at the rear of the main frame-lower left-hand side
and is clearly identified. To put the grinder in a "free-wheeling mode" rotate the bypass handle
up until it locks in place. To return it to powered travel, lower the bypass handle to original
position. See Fig. 5.
! CAUTION
DO NOT start or run the engine with the “by-pass” lever in the “up” or the “free-
wheeling” position! DAMAGE will occur to the hydrostatic transmission. Use the “up”
position ONLY when you wish to move the unit manually without the engine running.
(Fig. 5)
STOPPING (SP)
1. Turn the clutch switch off.
2. Gradually reduce the throttle down idle.
3. Turn the ignition switch off.
4. Release presence control bar remember the stump grinder will not restart until clutch switch is
turned off. Releasing the presence control bar will stop the stumper at anytime.
Important Note: Make sure to allow the cutter wheel to stop spinning before lowering the
stump grinder nose to the ground.
10

MAINTENANCE POWERTEK
ENGINE
Follow the instructions in the Engine Operators Manual for all maintenance of the engine such as checking the oil,
cleaning air filters, etc.
FUEL
Use standard unleaded gasoline in the stump grinder engine.
BELTS
Check the condition and tension of the drive belts before each operation. When properly tensioned, the belts should
give a 3/8" deflection at the center span under approx. 15 lbs. of pressure.
CUTTER BELT REPLACEMENT
If the belts are excessively warm or can no longer be properly tensioned, they must be replaced. Use a 2A94 size
belt when replacing the belt. To remove cutter belt, lightly loosen the tensioner bolt and the pivot bolt on the
backside of the belt cover in front of the engine. Place tensioner wrench between the two tension bolts. Push the
wrench handle away from the cutter wheel. Remove belt. Replace with new belt. Pull wrench handle toward cutter
wheel until proper tension of 3/8" at 15 lbs. is attained. Hold wrench as you tighten the tensioner bolt and pivot bolt.
Replace belt cover. See fig. 6 & 7.
HYDROSTATIC DRIVE BELT REPLACEMENT
To remove hydrostatic drive belt, remove cutter belt as described above. Loosen the clutch bracket and remove.
Loosen idler pulley and slide forward. Remove belt. Replace with a new AX-35 belt. Replace belt over clutch
pulley, hydro pulley, and idler pulley. Slide idler pulley until belt is tensioned to 3/8" at 15lbs. Tighten idler pulley.
Replace clutch bracket and re-tighten. Replace cutter drive belt as above. Replace belt cover. See fig. 7.
11
(Fig. 6) (Fig. 7)
HOUR METER
The meter is fully automatic with a display that may be read at all times, whether the engine is on or off. During
running times, engine RPM is shown; after shut down, Accumulated Running Time is shown.
After 25 hour of running time, the meter will automatically blink as a signal for oil change. It will continue to blink
for a (2) hour period of accumulated running time (ie., 25 to 27 hours). The next alert will automatically appear in
25 hours. No re-set is required.

MAINTENANCE POWERTEK
SHARPENING CUTTERS
The cutters should be sharpened frequently for higher performance and a longer life. It is also
easier to grind them if they are ground often.
*You will need a carbide-grinding wheel (green wheel) to sharpen them. Use a coarse grinding
wheel to grind the steel shank. Be sure to maintain the back grind of 15 degrees (approximately).
The cutters must be replaced when the tooth has been sharpened so that 1/4" (approximately) of
the carbide is left.
(Fig. 8)
TOOTH SELECTION
WHEN ORDERING TEETH USE THIS GUIDE TO ORDER SINGLE TEETH.
16265 (L.H.) 16263 (ST.) 16264 (R.H.)
12

MAINTENANCE POWERTEK
REPLACING CUTTERS (Fig. 9)
Remember before you replace any cutters you must turn the engine off, wait for moving
parts to stop, remove the key from the ignition and remove wires from spark plugs.
1. Put the handle in the transport position and tilt the Stumper all the way back until it rests
firmly on the ground.
2. To make cutter replacement easier, you can slide tensioner wrench handle through the hole in
the cutter guard and cutter wheel. This will prevent the wheel from turning during blade
replacement.
3. Loosen the allen head bolts (16262) from each of the cutter pockets and remove the cutters.
4. Install the new cutters in pairs alternating the cutters as shown.
5. Tighten the allen head bolts only tight enough to hold the cutters in the pockets, make sure all
of the cutters are extended past the cutter wheel equally. (Fig. 10)
6. Torque each allen head bolt to 175 ft. lbs. (alternating as you tighten) to lock the cutters in the
pockets.
7. Once you have installed all of the cutters, double check to make sure all the allen head
bolts have been tightened securely and make sure all the cutters are equally extended. NOTE:
cutter wheel viewed from bottom of stumper. (Fig. 9)
Important Note: Do not operate the Stumper if any of the cutters are missing. This will
cause the cutter wheel to be out of balance. Also, make sure all of the pockets are the same
kind.
13
(Fig. 9) (Fig. 10) (Fig. 11)
CUTTER WHEEL BEARINGS (Fig. 11)
Grease -cutter wheel bearing every 40 hours of operation NOTE: DO NOT OVERGREASE.

MAINTENANCE POWERTEK
HYDRAULIC OIL
Use- SAE 2OW Hydraulic Oil - In hydraulic Pump (16267) only. You will need to check the
hydraulic oil level in both the transmission and the gear reducer. To check the transmission read
the level mark located on the bottom of the fill cup. Use SAE 2OW hydraulic oil to fill the
hydrostatic transmission. To check the gear reducer (16268) you will need to get, underneath the
stump grinder. After removing the orange plug, you can check the level with your fingertip or
use a squeeze container to fill the reducer until some oil drips out of the hole. Then re-plug the
hole. Use SAE 90 weight gear lube in gear reducer, (See fig 12).
(Fig. 12)
CheckGear
Reducer Oil
Check
Hydraulic Oil
MAINTENANCE SCHEDULE
Daily Weekly Monthly Yearly/as Required
Check engine oil X
Check Machine Tire Pressure X
Inspect/Check Engine Cooling Fins X
Check for Loose Bolts X
Check Hitch and Safety Chains (PT only) X
Check Stump Grinder Teeth X
Check Air Cleaner X
Grease Bearings X
Check Belts for Proper Tension X
Check Hyd. Transmission Oil Level (SPH) X
Check that Clutch is Working Properly X
Check Rubber Guards X
Check and Gap Spark Plugs X
Change Engine Oil as Indicated in Engine Manufacturers Owners Manual
14

PARTS BREAKDOWN 16/20 SP POWERTEK
2
3
7
8
9
11
12
17
18
19
21
24
25
25
26
26
27
28
29
15
33
37
38
39
4142
43
36
44
46
47
47
48
49
50
51
52
53
55
56
57
5859
60
6162
63
64
65
66
68
67
69
66
69
70
54
73
74
74
75
76
76
79
80
81
83
8485
87
89
90
92
7-18-07
35
86
91
30
13
16
82
72
40
102
107
106
71
88
108
100
139
135
136 132 137 138 140
134
109
101
103
120121123124
125
93
96
3178
77
32
78
142
141
139
143
45
132
129
128
131
133
127
99
1
5
14
34
93
96
94
95
35
20
98
6
104
105
130
10
23
22
4
110
111
97
73
15

Key Part No. Qty Description
1 16200 1 Main Frame. 1620
2 16201 1 Taper Bushing, 1.18
3 16202 1 Cutting Wheel Pulley
4 16203 1 Idler, Main Drive
5 16209 2 Main drive Belt, Single
6 16205 1 Electric Clutch, 1.437
7 16207 1 Clutch Bracket
8 16208 1 Idler Pulley, 3”
9 16353 1 Frame Control Handle
10 16211 2 J-Bolt, Battery Hold Down
11 16212 1 Red, Positive Cable
12 16213 1 Black, Negative Cable
13 16215 1 Tach/Hour Meter thru S/N
72646 1 Tach/Hour Meter S/N 61497/up
14 16216 1 Gas Cap
15 16217 1 Gas Tank, Includes Cap
16 16219 1 Adjustment Tool
17 16220 1 Inner Belt Guard
18 16221 1 Curtain Mount, Left
19 16222 1 Curtain, Left
20 16223 1 Curtain Mount, Rear
21 16224 1 Curtain, Rear
22 16225 1 Rt. Curtain Mnt, Long
23 16226 1 Rt. Curtain Mnt, Short
24 16227 1 Right Curtain
25 16228 2 Rear Side Curt. Mount
26 16229 2 Rear Side Curtain
27 16230 1 Outer Rear Belt Guard
28 16231 1 Outer Front belt Guard
29 16232 1 Battery Hold Down (2)
30 16233 1 Gas Tank Strap
31 16234 1 Info Tube thru S/N 61496 on yl
32 16235 1 Tube Strap thru S/N 61496 only
33 16236 1 Male Fuel Coupling
34 16237 1 Female Fuel Coupling
35 16238 3 Spring, Kill Switch
36 16239 1 Dump Valve Handle
37 16240 1 Presence Handle
38 16241 1 Clutch Switch
39 16242 1 Brake Handle
40 16243 1 Brake Cable
41 16244 1 Kill Switch
42 16245 1 Shut Off Rod
43 16246 1 Spring, Handle Lock
44 16247 1 Transmission Gasket
45 16249 1 Forward/Reverse Cable
46 16250 1 Hydro Control Arm
47 16251 2 Pillow Block Bearing
48 16252 1 Cable Support
49 16253 1 Clutch Stabilizer
16365 1 Clutch Stabilizer (1624 only)
50 16354 1 Idler Arm
51 16255 1 Belt Tensioner Bracket
52 16256 1 Cutter Shaft
53 16257 1 Hydro Brake Bracket
54 16258 1 Shut Off Rod
55 16356 1 Cutter Wheel
56 16260 6 Threaded Tooth Pocket
57 16261 6 Counter Bore Tooth Pocket
58 16262 12 Pocket Bolt
59 16263 6 Straight Tooth
60 16265 3 Left Hand Tooth
61 16264 3 Right Hand Tooth
62 16266 1 1 ½” Muffler Clamp
63 16267 1 Eaton Hydro Transmission
64 16268 1 Peerless Transaxle
65 16269 1 12 Tooth Gear
66 16270 2 Wheel Hub
67 16271 1 Wheel Assembly, RH
68 16272 1 Wheel Assembly, LH
69 16273 2 Snap Ring
70 16275 1 Pulley, 3” x 1.437 Bore
71 16276 1 Pulley, 3” x 17MM Bore
72 16281 1 Hydro Valve Control Lever
73 16284 2 Woodruff Key, Axle
74 16285 3 Woodruff Key, Transmission
16
Key Part No. Qty Description
75 16286 1 Dump Valve Knob
76 16287 2 Presence Handle Spacer
77 16288 1 Info Tube Pad thru S/N 61496 only
78 16289 2 Info Tube End Caps thru S/N 61496 only
79 16291 1 3/8” Clutch Bushing
80 16292 1 LH Wheel Spacer, Short
81 16293 1 RH Wheel Spacer, Long
82 16294 1 Adj. Pin Handle Grip
83 16295 2 Tension Adj. Spacers
84 16296 1 Transmission Gear Spacer
85 16297 1 Retaining Ring, M17
86 16298 1 Pin, Handle Lock
87 16299 1 Idler Spacer
88 18105 1 Belt, AX-35
89 18123 1 Battery
90 20118 1 Engine, 20HP Kohler (1620 SP)
16336 1 Engine, 24HP Honda (1624 SP)
72673 1 Engine 31HP Briggs Van. (1631 SP)
91 20119 1 Muffler Kit, 20HP Kohller (1620 SP)
16337 1 Muffler Kit, 24HP Honda (1624 SP)
16359 1 Muffler w/Shield 31HP Va. (1631 SP)
92 28801 2 1” x 4” Clevis Pin
93 28839 2 Fuel Line Clamp
94 5001002 8 ½” Lug Nuts
95 5001225 8 ½” Wheel Hub Stud
96 16310 1 Fuel Line, 48”
97 16313 2 Wire Stop
98 16314 1 Ball Joint
99 16316 1 Handle Fold-Up Link
100 16318 1 Shield, Right Curtain
101 16320 1 Main Idler Bushing
102 16325 1 1/8” Clutch Bushing
103 16326 1 Guard Lock Tab
104 72522 1 Clutch Retainer
105 72523 1 Retainer Bolt
106 16338 1 Cover Plate S/N 61497/up only
107 16339 1 Manual Pack S/N 61497/up only
108 16355 1 Axle curtain, RH
109 16357 1 Wheel Slot Cover
110 5000408 1 ½-12 x 1” Shoulder Bolt
111 5000406 1 ½-12 x ¾ Shoulder Bolt
16290 Complete Decal Set
16290A Decal, Clutch Switch
16290B Decal, Transmission Valve
16290C Decal, Caution Stumps Only
16290D Decal, Warning Don’t Move
16290E Decal, Belt Tension
16290F Decal, Danger Cutter Wheel
799021 Brake Pad
162171 Float Assembly, 3&6 gal. tank
162172 Pick-Up Assembly, 3&6 gal.tank
Optional Accessories
120 16300 Counter Bore Mnt.,Std Angle
121 16301 Counter Bore Mnt., Straight
123 16303 Tooth, Deep Dish, Hard Carbide
124 16304 Threaded Mnt., Std. Angle
125 16305 Threaded Mnt., Straight
127 16327 Transport Wheel Assembly
128 16327A Caster Tube, Transport Wheel
129 45060A Caster Yoke
130 68050 Pneumatic Wheel
131 45061 Nylon Washer
132 16218 Clevis Pin, 3/8” s 2 ¼”
133 7500802 ¾” Flat Washer
134 16328 Gauge Wheel Assembly
135 16328A Mount Arm, Gauge Wheel
136 16328B Adjustment arm, Gauge Wheel
137 16328C Wheel Spacer, Gauge Wheel
138 32104 Wheel
139 85226 Bent Pin
140 500126 Bolt, ½” -13 x 3 ¼”
141 16352A Mirror Mount Arm
142 16352B Mirror, Convex
143 16352 Sight Mirror Assembly 3-31-09
PARTS LIST 16/20 SP POWERTEK

PARTS BREAKDOWN 16/20 P POWERTEK
17

PARTS LIST 16/20 P POWERTEK
Key
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
Part No. Qty Description
16200 1 Main Frame
16201 1 Taper Bushing, 1.187
16202 1 Cutting Wheel Pulley
16203 1 Idler, Main Drive
16209 2 Main Drive Belt, Single
16205 1 Electric Clutch, 1.437
16207 1 Clutch Bracket
16353 1 Frame Control Handle
16211 2 J-Bolt, Battery Hold Down
16212 1 Red, Positive Cable
16213 1 Black, Negative Cable
16215 1 Tach/Hour Meter thru S/N 61496
72646 1 Tach/Hour Meter S/N 61497/up
16216 1 Gas Cap
16217 1 Gas Tank, Includes Cap
16219 1 Adjustment Tool
16220 1 Inner Belt Guard
16221 1 Curtain Mount, Left
16222 1 Curtain, Left
16223 1 Curtain Mount, Rear
16224 1 Curtain, Rear
16225 1 Rt. Curtain Mnt, Long
16226 1 Rt. Curtain Mnt, Short
16227 1 Right Curtain
16228 2 Rear Side Curt. Mount
16229 2 Rear Side Curtain
16230 1 Outter Rear Belt Guard
16231 1 Outter Front Belt Guard
16232 1 Batter Hold Down (2)
16233 1 Gas Tank Strap
16234 1 Info Tube thru S/N 61496 only
16235 1 Tube Strap thru S/N 61496 only
16236 1 Male Fuel Coupling
16237 1 Female Fuel Coupling
16238 1 Spring Kill Switch
16240 1 Presence Handle
16241 1 Clutch Switch
16242 1 Brake Handle
16243 1 Brake Cable
16244 1 Kill Switch
16245 1 Shut Off Rod
16246 1 Spring, Handle Lock
16251 2 Pillow Block Bearing
16253 1 Clutch Stabilizer
16354 1 Idler Arm
16255 1 Belt Tensioner Bracket
16256 1 Cutter Shaft
16356 1 Cutter Wheel
16260 6 Threaded Tooth Pocket
16261 6 Counter Bore Tooth Pocket
16262 12 Pocket Bolt
16263 6 Straight Tooth
16264 3 Right Hand Tooth
16265 3 Left Hand Tooth
16266 1 1 1/2" Muffler Clamp
16321 1 Wheel Hub, PT
16279 1 Wheel Hub w/ Brake Drum
16282 1 Axle Assembly
16287 2 Presence Handle Spacer
16288 1 Info Tube Pad thru S/N 61496 only
16289 2 Tube End Caps thru S/N 61496 only
16294 1 Adj. Pin Handle Grip
16295 2 Tension Adj. Spacers
16298 1 Pin, Handle Lock
16299 1 Idler Spacers
16307 1 Brake Bracket Ass'y
16309 1 Clutch Spacer
Key
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
100
101
103
104
105
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
Part No. Qty Description
16308 1 Brake Band
16311 1 Brake Band Lock Pin
18123 1 Battery
20118 1 Engine, 20HP Kohler (1620 P)
16336 1 Engine, 24HP Honda (1624 P)
20119 1 Muffler Kit, 20HP Kohler (1620 P)
16337 1 Muffler Kit, 24HP Honda (1624 P)
28801 2 1" x 4" Clevis Pin
28839 2 Fuel Line Clamps
5001002 10 Lug Nut, 1/2"
51611 2 Wheel/Tire
51667 2 Wheel Bearing Kit
16310 1 Fuel Line, 48”
16313 1 Wire Stop
16315 1 Cover Plate
16316 1 Handle Fold-Up Link
16318 1 Shield, Right Curtain
16320 1 Main Idler Bushing
16326 1 Guard Lock Tab
72522 1 Clutch Retainer
72523 1 Retainer Bolt
16338 1 Cover Plate S/N 61497/up only
16339 1 Manual Pack S/N 61497/up only
16355 1 Axle Curtain, RH
16357 1 Wheel Slot Cover
16290 Complete Decal Set 1620
16290A Decal, Clutch Switch
16290B Decal, Transmission Valve
16290C Decal, Caution Stumps Only
16290D Decal, Warning Don't Move
16290E Decal, Belt Tension
16290F Decal, Danger Cutter Wheel
162171 Float Assembly, 3 & 6 gal. tank
162172 Pick-Up Assembly, 3 & 6gal. tank
Optional Accessories
16300 Counter Bore Mnt., Std Angle
16301 Counter Bore Mnt., Straight
16303 Tooth, Deep Dish, Hard Carbide
16304 Threaded Mnt., Std. Angle
16305 Threaded Mnt., Straight
16-20PTB Tow Bar Assembly, P1621
162801 Tow Bar, P1621
85226 Bent Pin
51625 Safety Chain Spacer
51624 Safety Chain
51601 2" Coupler
16327 Transport Wheel Ass’y
16327A Caster Tube, Transport Wheel
45060A Caster Yoke
68050 Pneumatic Wheel
45061 Nylon Washer
46218 Clevis Pin, 3/8” x 2 ¼”
7500802 ¾” Flatwasher
16328 Gauge Wheel Assembly
16328A Mount Arm, Gauge Wheel
16328B Adjustment Arm, Gauge Wheel
16328C Wheel Spacer, Gauge Wheel
32104 Wheel
5000126 Bolt, ½”-13 x 3 ¼”
16352A Mirror Mount Arm
16352B Mirror, Convex
16352 Sight Mirror Assembly
11-13-07
18

ELECTRICAL SCHEMATICS POWERTEK
19
WHITE
GREEN
ON
OFF
N
GREEN
BLACK
YELLOW
SPLICEINTO
CONNECTTOYELLOW
BLUE
BLUE
ONENGINE(12VAUXPOWER)
UEWIRE
KEYSWITCH
ICEINTO BLUEWIRE
ONSOLENOID
BLUE
BLUE
BLACK
YELLOW
WHITE
SPLICEINTOBL
TOENGINE
SPL
CLUTCH
CLUTCH SWITCH
OPERATOR PRESENCE
KILL SWITCH
HOUR-METER
LEAD AROUND
PLUG WIRE
WRAP RED
WHITEONENGINE
20HP Kohler
31HP VANGUARD
INE
BLACKONENG
WRAP RED
PLUG WIRE
LEAD AROUND
HOUR-METER
OPERATOR PRESENCE
KILL SWITCH
CLUTCH SWITCH
CLUTCH
WHITE
SPLICEINTO
YELLOW
BLACK
BLUE
BLUE
REMOVEDFROMSOLENOID
SPLICEINTOYELLOWWIRE
YELLOWWASONATSOLENOID
SPLICEONTOTERMINALTHAT
ONENGINE(12VAUXPOWER)
BLUE
BLUE
CONNECTTOGREY
YELLOW
BLACK
GREEN
N
OFF
ON
GREEN
WHITE
BLACK/REDONENGINE
24HP Honda
WRAP
PLUG WIRE
LEAD AROUND
CLUTCH
HOUR-METER
OPERATOR PRESENCE
KILL SWITCH
WHITE
YELLOW
ONENGINE(12VAUXPOWER)
BLUE
BLUE
CONNECTTOBLACK/YELLOW
SPLICEINTO
YELLOW
BLACK
N
OFF
ON
CLUTCH SWITCH
BLACK
BLUE
BLUE
WIREONSOLENOID
SPLICEINTOBLACK/WHITE
TOSTARTERSOLONOID
GREEN
GREEN
WHITE