Jet GHD-20 User manual

.JET
EQUIPMENT & TOOLS
OPERATOR'S MANUAL
GHD-20/20T/20PF/20PFT
Gear Head Drill/Tap
(GHD-20PFTshown)
JET EQUIPMENT£ TOOLS,INC.
A WMHCompany
www.jettools.com
P.O, 60X 1348
Auburn, WA98071-1349
e-mail [email protected]
203-351-6000
Fax[phone]
M-354026 4199

Important Information
i-YEAR
LIMITEDWARRANTY JET offers a one-year limited
warranty on this product
REPLACEMENT PARTS
Replacement parts for this tool are available directlyformJET Equipment&Tools.
To place an order, call 1-800-274-6848. Please have the followinginformationready:
1. Visa, MasterCard, or DiscoverCard number
2. Expirationdate
3. Part number listed withinthis manual
4. Shipping address other than a Post Officebox.
REPLACEMENT PART WARRANTY
JET Equipment & Tools makes every effort to assure that parts meet high quality and durability
standards and warrants to the originalretailconsumer/purchaser of our parts that each such part(s) to be
free fromdefects in materials and workmanshipfor a period of thirty(30) days fromthe date of purchase.
PROOF OF PURCHASE
Please retain your dated sales receipt as proofofpurchase to validate the warranty period.
LIMITEDTOOL AND EQUIPMENT WARRANTY
JET makes every effort to assure that its products meet high quality and durability standards and warrants to the
original retail consumer/purchaser of our products that each product be free from defects in materials and
workmanship as follows: 1 YEAR LIMITED WARRANTY ON THIS JET PRODUCT. Warranty does not apply to
defects due directly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations outside our
facilities or to a lack of maintenance. JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED
ABOVE FROM THE DATE THE PRODUCT WAS PURCHASEDAT RETAIL EXCEPTAS STATED HEREIN,ANY
IMPLIED WARRANTIES OR MECHANTABIUTY AND FITNESS ARE EXCLUDED. SOME STATES DO NOT
ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU. JET SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR
PROPERY OR FOR INCIDENTAL, CONTINGENT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING FROM
THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
INCIDENTALOR CONSEQUENTIALDAMAGES, SO THE ABOVE LIMITATIONOR EXCLUSIONMAY NOTAPPLY
TO YOU. To take advantage of this warranty, the product or part must be returned for examination, postage prepaid,
to an authorized service station designated by our Auburn office. Proof of purchase date and an explanation of the
complaint must accompany the merchandise. If our inspection discloses a defect, JET will either repair or replace
the product or refund the purchase price, if we cannot readilyand quickly provide a repair or replacement, if you are
willing to accept such refund. JET will return repaired product or replacement at JET's expense, but if it is
determined there is no defect, or that the defect resulted from causes not within the scope of JET's warranty, then
the user must bear the cost of storing and returning the product. This warranty gives you specific legal rights, and
you have other rights,which vary, from state to state.
JET Equipment & Tools. P.O. Box 1349,Auburn, WA 98071-1349 . [phone]

WARNING
For your own safety, read the operator's manual before operating the drill press.
Wear eye protection.
Do not wear gloves, neckties, or loose clothing.
Clamp the workpiece or brace it against the column to prevent rotation.
Use the recommended speed for drill accessories and workpiece materials.
.KEEP GUARDS IN PLACE and in working order.
.REMOVE ADJUSTING KEYS AND WRENCHES. Form a habit of checking to see that keys and
adjusting wrenches are removed from the machine before turning iton.
.KEEP THE WORK AREA CLEAN. Cluttered areas and work benches invite accidents.
.DON'T USE INA DANGEROUS ENVIRONMENT. Don't use power tools in damp or wet locations,
or expose them to rain. Keep work area well lighted.
.KEEP CHILDREN AWAY. Allvisitors should be kept a safe distance from the work area.
.MAKETHE WORKSHOP KIDPROOF with padlocks, master swatches, or by removing starter keys.
.DON'T FORCE THE MACHINE. Itwilldo the job better and safer at the rate for which itwas
designed.
.USE THE RIGHT MACHINE. Don't force a machine or attachment to do a job for which itwas not
designed.
.USE THEPROPER EXTENSIONCORD. Makesure yourextension cord is ingood condition.
When using an extension cord, be sure to use one heavy enough to carrythe current your machine
willdraw. An undersized cord willcause a drop inthe line voltage resulting inpower loss and
overheating. Ifin doubt, use the next heavier gauge. Remember, the smaller the gauge number, the
heavier thecord.
2

.WEAR PROPERAPPAREL. Do notwear loose clothing, gloves, neckties, rings, bracelets, or other
jewelry which may get caught in moving parts. Non-slip footwear is recommended. Wear protective
hair covering to contain long hair.
.ALWAYS USE SAFETY GLASSES. Also use face or dust masks if the cutting operation is dusty.
Everyday eyeglasses only have impact resistant lenses; they are not safety glasses.
.DON'T OVERREACH. Keep properfooting and balance at all times.
.MAINTAINTOOLS WITH CARE. Keep tools sharp and clean for the best and safest performance.
Follow instructions for lubricating and changing accessories.
.ALWAYS DISCONNECTTHE MACHINEFROM THE POWERSOURCE BEFORE SERVICING.
.REDUCE THE RISK OF UNINTENTIONALSTARTING. Make sure the switch is in the off position
before plugging in.
.NEVER STAND ON A MACHINE. Serious injury could occur if the machinetipped or if the drill bit is
unintentionally contacted.
.CHECK DAMAGEDPARTS. Beforefurther use of the machine, a guard or other part that is
damaged should be carefully checked to determine that it will operate properly and perform its
intended function -check for alignment of moving parts, binding of moving parts, breakage of parts,
mounting, and any other conditions that may affect its operation. Aguard or other part that is
damaged should be properly repaired or replaced.
.NEVER LEAVE THE MACHINE RUNNINGUNATTENDED. TURN POWEROFF. Don't leavethe
machine until it comes to a complete stop.
3

Specifications; GHD.20Series
Stock Number 354020/354024/354022/354026
Drilling Capacity (cast iron) 1-1/2"
Drilling Capacity (steel) """'"'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 1-1/4"
Swing 20"
MaximumDistance Spindle to Table .., 30-7/8"
Spindle Taper ... MT-3
Spindle Travel (GHD-20/20T Manual) 5"
Spindle Travel (GHD-20PF Manual) 4-1/2"
Spindle Travel (GHD-20PF Power) """"'''''''''''' 4-1/4"
Spindle Travel (GHD-20TI2PFT Tapping) on"""'" "'''''''''''''''''''''''' 4-7/8"
Quill Diameter 3"
Column Diameter 4-1/2"
Numberof Spindle Speeds .12
Range of Spindle Speeds (rpm) ..60-3000
Numberof Power Downfeeds(GHD-20PFonly) 3
Range of Power Downfeeds(GHD-20PF only) OO4",.007", .01"
Table Size 21-1/4" x 18-112"
Motor -"""" -. ... """"""""'" ....2HP,3Ph, 230V, 2 Speed
Net Weight (GHD-20/20T) 660 Ibs.
Net Weight (GHD-20PF/20PFT)- on. 670 Ibs.
Table of Contents
Warnings 2-3
Specifications , ... 4
Contents of Shipping Container 5
Before Assembly ... 5
Assembly -.." 5
Adjusting the Head Height 6
Adjusting the RackAssembly 6-7
Controls -. 7
Control Panelfor GHD-20T/20PFT 8
ElectricalConnections "'''''''' .-. 9
Installing Chuck (not included) """""""""""""""""""""""""""""'" 9
Removingthe Arbor 9
Adjusting Depth Stopfor Drilling (GHD-20). 10
Adjusting Depth Stopfor Drilling and Tapping (GHD-20T) 10
Adjusting Depth Stop for Drilling (GHD-20PF) 10
Adjusting Depth Stopfor Drilling (GHD-20PFT)"""'"'''''' 10
Adjusting Depth Stop for Tapping (GHD-20PFT) 11
Changing Spindle Speeds """'" 11
Return Spring Adjustment 11
Tilting the Head .12
Lubrication ., .12
Changing the Gear Box Lubricant 12-13
Troubleshooting , """""""""""""'" ....14
Parts Breakdown& Parts List 15-27
Control Box Assembly & Parts List "",,,,,""""-"""""""""""""""'"'''''''''''''''''''''''''''''''''''''' 28-29
Electrical Panel Components(GHD-20Tand2OPFT) 30-32
ElectricalSchematic """""""""" 33-35
The specifications in this manual are given as general informationand are not binding. JET Equipment
and Tools reservesthe right to effect, at any time andwithout prior notice, changes or alterations to parts,
fittings, and accessory equipment deemed necessaryfor any reason whatsoever.
4

Contents of the Shipping Container
1
1
1
1
1
1
1
1
3
3
1
1
1
1
Gear Head Drill Press
LugWrench
Touch Up Paint
Drill ChuckArbor (MT-3 x JT-6)
Drawbar
Drift Key
Crank
Handle
Downfeed Handles fGHD-20/20T only)
Knobs (2 wI the GHD-20PF/20PFT)
3mm HexWrench
4mm HexWrench
5mm Hex Wrench
Main Shaft Cover
Before Assembly
1. Finish removing the contents of the shipping
container.
2. Comparethe contents of the shipping container
with the list found in this manual. Report any
shortages or damageto your JET distributor.
3. Clean all rust protected surfaces with kerosene
or a light solvent. Do not use lacquer thinner,
paint thinner, or gasoline. These will damage
plastic components and painted surfaces.
Assembly
1. Slide crank (A, Fig. 1) onto the table raising
assembly shaft.
2. Tighten the set screw (8, Fig. 1)to hold the
crank in place.
3. Install the handle (C, Fig. 1) onto the crank.
4. For the GHD-20/20T, install three handle and
knobs (A, Fig. 2) into the downfeed hub. For
the GHD-20PF/20PFT, screw two knobs onto
the handles of the power downfeed assembly.
Fig. 1
Fig. 2
5

Adjusting the Head Height
To facilitate shipping, the DrillPress is packed with
the head adjusted down on the column. The head
assembly should be moved to the top of the column
before drilling operation starts.
,WARNING
The head assembly is very heavyl Use caution
when adjusting the head and make sure it is
supported by the table or locked in place.
Failure to comply may cause damage to property
and/or personal injuryl
1. Unlockthe table by loosening handle (A,Fig. 3).
2. Lowerthe table untilthere is roomto place a
blockof wood between the table and the head
assembly (Fig.4).
3. Loosen two nuts (A,Fig.5) on the head
assembly.
4. Raise the head by raising the table. The head
is at the correct height when the top of the head
isjust belowthe columncap (B, Fig.5).
5. Tightenthe twonuts (A,Fig.5) on the head
assembly firmly.
6. To lowerthe head, reverse the steps above. Do
not loosen the head assembly bolts without
supporting the head. This may cause the
head to slip on the column and may cause
damage to the machineor personal injury.
Adjusting the Rack Assembly
After the table has been adjusted,the rack assembly
will need to be raised.
CAUTION
The table must be locked when raising the rackl
Failure to lock the table may cause the assembly
to drop on the column, causing damage to the
machinel
1. Makesure both head assembly nuts (A,Fig. 5)
are tight.
2. Loosen the hex socket cap screw (A,Fig.6) on
the upper rack ring.
3. Loosen twosets screws on the bottomrack ring
(A,Fig.7).
Fig. 3
Fig. 4
Fig. 5
Fig. 6
6

4. Raise the rack assembly by turning the table
raising handle clockwise.
5. The rack assembly is at itsfull height when the
top rack ring isjust below the head assembly
(as illustrated in Fig.6).
6. Tighten the hex socket cap screw on the top
rack ring and two set screwson the lower rack
ring.
Controls
Low / Off / High Switch (A, Fig. 8) - located top left
side of the head assembly. Switch between low and
high speed range. Inthe stop position, the spindle
is stopped, but the machine still has power.
Fine Feed Handwheel (B, Fig.8) - located on the
front lower right of the head assembly. Turn
clockwise to lowerthe quill. Turn counter-clockwise
to raise the quill.
Quill Lock (C, Fig. 8) -located on the front lower
right of th~ head assembly. Turn clockwise and
tighten to lock the quill. Turncounter-clockwise and
loosen to unlock the quill.
Speed Selectors (0, Fig.8}-located on the top
front of the head assembly. Usedwith low/offlhigh
switch and the speed chart on the front of the head
assembly to setthe drill to a specific speed.
Caution: Change speeds only when the machine
is stopped.
Depth Stop (GHD-20/20T)(E, Fig.8) - located on
the front bottomof the head assembly. When set,
the quill will only advance to a certain depth.
Depth Stop (GHD-20PF/20PFT) (A, Fig. 9) -
located on the downfeed assemblyon the right side
of the head assembly. When set, the quill will
advance automatically or manuallyto a certain
depth.
Power Downfeed Speed Selector
(GHD-20PF/20PFT)(B, Fig. 9) -located on the right
side of the head assembly. Set to advance the quill
at desired speed. Engage the power downfeed by
pulling the handle assembly away from the head.
Disengage the power downfeed by pushing the
handle assemblytoward the head. Tighten Lock
Screw (C, Fig. 9) to lockout the power downfeed
and to keep the drill in manualfeed only.
Fig. 7
c
Fig. 8
,- t
'J e"
Fig.9
7

-- -- --------------
Control Panel for GHD-20T/20PFT
Low/Off/High Switch (A, Fig. 9A) Switch between
low and high speed range. Inthe stop position, the
spindle is stopped, but the machinestill has power.
Drilling Tapping Selector (B, Fig. 9A) For drilling
press start switch (F, Fig. 9A) to run the machine.
Caution: The internal depth stop (GHD-20PFT) is
used only with the tapping function. Raisethe
adjusting knob (8, Fig. 11)to the top of the depth
stop screwso as not to interferewith power
downfeed or manualfeeding operations. For
tapping, turn switch (8, Fig.9A) to tapping position,
press down the handle. The quill functions when
upper limit switch is released. Itthen reverses
automatically after hitting lower limit switch andwill
not stop until it hits the upper limit switch.
Emergency Switch (C, Fig. 9A) Press this switch to
stop all operations.
Power Light (D, Fig. 9A) Indicates power is on.
Reverse Switch (E, Fig. 9A) If tapping is interrupted
press the reverse switchto reverse the tapfrom
workpiece. The button must be held down for
continuous reversing.
Start Switch (F, Fig. 9A) Activates the motor in the
drill or tap mode.
8
E
D
C
Fig.9A
8

Electrical Connections
0,WARNING
A quafified electrician must complete all
electrical connections!
All adjustments or repairs must be dOne with the
drill disconnected from the power source!
Failure to comply may result in serious injury!
The motor is rated at2 HP, 3 Ph, 230Vonly. Make
sure the power available matches the power
requirement of the drill. The drill must be properly
grounded.
When the drill is connected properly, the spindle
turns clockwise in a conventional drilling rotation. If
the spindle does not turn clockwise, disconnect the
drill from the power supply and reverse two of the
three power leads.
Installing a Drill Chuck (not included)
1. Disconnectthe machinefrom the power source.
2. Clean the arbor and the inside of the chuck.
3. Pushthe chuck onto the arbor.
4. Place a piece of scrap wood on the table and
raise the table to just below the chuck.
5. Using the down feed handles, lowerthe chuck
against the piece of scrap woodfirmly to "seat"
the chuck.
Removing the Arbor
1. Unplugthe machinefrom the power source.
2. Make sure the drill is in gear.
3. Removethe main shaft cover (A, Fig. 11).
4. Use an adjustable wrench or box wrench to
loosen the draw bar (A, Fig. 10).
5. Unscrewthe draw bar approximatelytwo
revolutions. If the arbor is not loose, gently tap
on top of the draw bar to loosen the arbor.
6. Continue to unscrew the draw bar with one hand
on the chuck and arbor so that it doesn't drop
onto the table.
Fig. 10
Fig. 11
9

Adj~stin9 the Depth Stop for Drilling
(GHD.20J
1. Follow steps for GHD-20 drilling
0
1-
To drill multiple holes at the same preset depth, use
the depth stop:
1. Turn the adjusting knob (B, Fig. 11) until the
correct depth is indicated on the scale on the
front of the drill head.
2. Drill several test holes to make sure the depth
stop is set correctly.
Adjusting Depth Stop for Drilling and
Tapping (GHD-20T)
2. When the tapping switch is on. The limit switch
switches are active and will reverse rotation at
the bottom of the stroke and stop rotation at the
top. Fig. 12
1. loosen the depth stop lock handle (A, Fig. 12).
3. When tapping switch is off, The limit switches
are off and do not effect spindle rotation.
Adjusting the Depth Stop for Drilling
(GHD-20PF)
2. Manually advance the quill to the desired depth
with one hand.
3. With the other hand, turn the depth stopscale
(B, Fig. 12) counter-clockwise to zero.
4. Tighten the depth stop lock handle (A, Fig. 12).
The depth stop will now stop the drill at the pre-
determined setting.
Adjusting the Depth Stop for Drilling
(GHD-20PFT)
Fig. 13
1. Turn the adjusting knob (B, Fig. 11) until full
travel is possible. Do not use this scale as a
reference when drilling. This depth stop isfor
tapping only and should not interfere with
drilling operations.
2. Follow stepsfor GHD-20PFdrilling.
10

Adjusting the Depth Stop for Tapping (GHD-
20PFT)
1. Loosen the depth stop lock handle (A, Fig. 12)
so it does not interfere with the internal depth
stop located on the front of the drill head.
2. Adjust the front depth stop for the proper depth.
3. Manually advancethe quill releasing the upper
limit switch for tapping. This will start the motor.
The quill will reverse directions upon triggering
the lower limit switch.
4. Do not powerfeed and tap at the sametime.
Changing Spindle Speeds
To change spindle speeds:
1. Stop the drill by turning the low/stop/high switch
to stop.
2. Adjust the levers (A, Fig. 13)to the desired
speed as indicated by the speed chart. Turning
the spindle by hand will help the gear teeth
mesh.
Return Spring Adjustment
The return spring is adjustedat the factory and
should not need further adjustment. If adjustment is
necessary:
1. Unplug the machinefrom the power source.
2. Loosen lock knob (A, Fig. 14)while holding the
quill spring cover. Do not allow the cover to turn
in your hand or the spring will unwind.
3. Pull out the cover (8, Fig. 14) and rotate until
the pin (C, Fig. 14)on the return spring plate
engages the next notch in the coil spring cover.
Turn the cover clockwise to decrease tension
and counter-clockwise to increase tension.
4. Tighten the lock knob (A, Fig. 14). Do not over-
tighten. Nuts should not contact the housing
when tight.
Fig. 14
11

Tilting the Head
To tilt the head:
1. Turn nut (A, Fig. 15)clockwise to pull out the
alignment pin (B, Fig. 15).
2. Loosen hex nuts (C, Fig. 15).
3. Tilt the head to the desired angle.
4. Tighten two hex nuts (C, Fig. 15).
5. The alignment pin onlyworks at 0" and must be
reinserted when the head is returned to 0°.
Lubrication Figure 16
1. Headstock fillwith Mobil DTE@Oil Heavy
Medium. Check level daily and change yearly.
2. Powerfeed Use Mobilith AW2 every three
months.
3. Spindle Drive Use Mobilith AW2 every three
months.
4. Quill Pinion Gear Use Mobilith AW2 Every
three months.
5. Quill & Column Surface UseMobil DTE@Oil
Heavy Medium everythree months.
6. Table Pinion Gear UseMobilith AW2 every
three months.
7. Quill Return Spring MobiIDTE@ Oil Heavy
Medium every month. Do not remove cover.
Changing the Gear Box Lubricant
1. Disconnect the machinefrom the power source.
2. Loosen nuts (A, Fig. 17)
3. Tilt the head to accessthe drain plug. The
drain plug isfound inthe head cavity behind the
spindle.
4. Loosen the drain plug but do not remove.
5. Tilt the head back upright.
B
Fig. 15
4
Fig. 16
Fig. 17
12

6. Place a container on the table to catch the
draining lubricant.
7. Remove the filler plug (A, Fig. 18).
8. Remove the drain plug.
9. Replace the drain plug after the lubricant has
finished draining.
10. Pour one (1) gallon of new lubricant (Mobil
DTE@Oil Heavy Medium)through the filler hole.
Caution: Use of any other type of lubricant
other than that specified may cause damage
to the drill press.
11. Replace the filler plug.
Fig. 18
13

Troubleshooting
14
Problem Probable Cause Solution
Excessive vibration Motor out-of-balance. Balance motor or replace.
Reduce feed rate.
Over feeding.
Dull drill bit. Sharpen drill bit.
Motor stalls Replace or repair motor.
Motor not running up to Check fuses in all three legs
speed. on three Nhase motors ana
replace, . necessary.
Improper quill adjustment. Adjust quill.
Noisy operation Noisy spindle. Lubricate spindle.
Noisy motor. Check motor bearings or for a
loose motor fan.
Excessive speed. Reduce speed.
Dull tool. Sharpen tool or replace.
Drill or tool heats up or burns Feed rate too slow. Increase feed enough to clear
work. chips.
Rotation of drill incorrect. Reverse motor rotation.
Failure to use cutting oil or Use cutting oil or coolant (on
coolant (on steel). steel).
!No drill spot. Center punch or center drill
workpiece.
Cutting lips on drill off center. Regrind drill.
Drill leads off. Quill loose in head. Tighten quill.
Bearing play. Reseat or replace bearings.
Bent drill. Replace drill.
Excessive drill runout or Bearing play. Reseat or replace bearings.
wobble. Drill not seated properly in the Loosen, reset, and tighten
chuck. chuck.
Work or fixture comes loose Failure to clamp work piece or Clamp workpiece or work
I or spins. work holding device to table. hold!ng device to the table
Iservice.

Parts List for the GHD.20/20T/20PF/20PFT Gear Head Drills
Head Assembly - GHD-20PF/20PFT
Index Part
No. No. Description Size Qty.
40 GHD20PF-40 ..Screw 3/16 x 3/8 1
42 ..61105 ... Spring Base ... .., 1
43 GHD20PF-43 Spring Pin " 3 x 12 2
44 GHD20PF-44 Screw 3/16 x 3/4 3
45 .,. 61104 Spring " 1
46 ... 61103 Spring CoveL ".. 1
47 TS-068oo21 ..""'"'''' Washer 1/4 1
48 TS-0720071 lock Washer 1/4 1
49 ..6185 lock Knob 1
52 TS-0071141 Hex Cap Bol1 5/8 x 5-1/2 2
53 GHD20-53 Oil Plug %"p1 1
70 2421003 " '" Handle Rod 1
76 2401076 Scale 1
76-1 .2450060 Pointer 3
78 6112 Rubber Gasket 1
79 2412001 Casting"""""""""'"'''''''''''''''''''''''''''''''''''''' 1
82 "" ....6114... lock Nut ...1
83 GHD20PF -83 Star Washer ..., 1
84 BB-30206 Taper Roller Bearing "1
85 ..6116 Rack Sleeve.. MT3 1
86 6117 Spindle Shaft """"'" 1
87 BB-30207 Taper Roller Bearing 1
88 6119 Bearing Cap ..1
89 6127 ScrewKey .....1
90. TS-0561031.""""""""" ... Hex Nut. """""""""""""""""""'" 3/8 1
91 ..2401066...""'"'''''''' Gear lever Bracket 2
92 2401067 Gear lever (left) 1
93 ..2401068 Gear lever (right) .." 1
94 GHD20PF-94 Screw ;1/4 x 1/2 1
95 .. 2401070. lever Shaft (right) 1
96 2401071 "" lever Shaft(left) 1
97 ...GHD20PF-97 C-Ring ".. 2
98 GHD20PF-98 Oil Sight Glass , 1
99 .. GHD20PF-99 Screw... , 3/16 x 3/8 8
100 GHD20PF-100 Oil Seal G12 2
102 .. 2401 075... " ""'"'''''''''' Speed lever 2
106 . GHD20PF-106 Oil Plug 1
107 TS-0209081 Hex Socket Cap Screw 3/8x 3/4 6
108 . GHD20PF-108... Miter Pin 2
109 TS-0267021 Set Screw 1/4x 1/4 4
110 ..GHD20-86 Motor 1
111 GHD20PF-111 Key 6 x 6 x 30 1
112 TS-0209051 Hex Socket Cap Screw 3/8 x 3/4 6
113 GHD20-89 Brass Fitting.. 1
114 TS-0561071 HexNut 5/8 ...3
116 1S-0071041 HexCap Bolt 5/8 x 2-1/4.. ..3
119 6126-1 Collar (thread).. .."..." 1
120 .. 8125-1 Collar 1
15

121 8125-2 Collar""""""""""" """'" """"" "'"'''''' '''''''''''''''''''''''''''''' 1
122 .. 61112 Cover Plate 1
123 GHD20-123 '"'''''''''''''''' ... Screw "'''''''''''''''' 4
150 . TS-Q561071 HexNut 5/8 2
151 TS-068oo81 Washer ""''''''''''''''''''''''''''''''""", 5/8 2
201 ..2450001 .HeadBody Cover ""'''''''''''''''''''''''''''''' 1
202 2450002 Head Body Casting 1
218 .2450008 """ Worm Gear ""'" """""""""'''''''''''' 1
219 TS-1523011 SetScrew '''''''''''''''''' M6x6 4
220 GHD20PF-220 C-Ring 4
227 2450014 """"" Cover """'" """"" .. 1
233.. GHD20PF-233 Screw """" , M4 x 25 1
235 .2450020 """"'" """"" Release Block 1
236 2450021 Small Pinion Shaft """""'''''''' "'"'' """""" '''''''''''''' 1
237......2450022 Key "'''''' """""'''''''''''''' 2
238 2450023 Worm Gear """""'" 1
239 2450024 Clutch Key Base 1
241 2450026 ClutchKey ""'"'''''' """'" 2
243 ..2450028 ...Spring """""""""""""""""""" 2
244 GHD20PF-244 C-Ring " , 1
246 2450030 Bushing Pin ... 1
247 2450031 Bushing Stop """""""'"'''' .. '''''''''''''''''''''''''' 1
248 2450032 ""'"'''' Scale Base 1
249 GHD20PF-249 Rivet 8
250 2450033 Scale Base Set Screw 1
254 ......2450037. HandleBody """""""""""""""" 1
255 2450038 Handle Rod ,2
256 GHD20PF-256 Knob """"""""" '''''''' 2
257 2450039 Handle Rod Pin """'''''''''''''''''' "'"'''''''''' ...2
258 2450040 Washer '''''''''''' 1
259 TS-1504021 HexSocketCapScrew"""'"'''''''''''''''''''''''''' M8x 12 1
265 GHD20PF-265 Key 5 x 5 x 32 1
266 .2450045 Cover """"""""""""""""" 1
268 TS-1502031 Hex SocketCap Screw M5 x 12 2
269 GHD20PF-269 Key 4 x 4 x 10 1
270 24500470 HandWhee! '.., ...1
271 '" ...GHD20PF-271 """"'''''' Washer """" '"'''''''''''''''''''''' 1
272 TS-1523031 Hex SocketCap Screw M6 x 12 1
279 TS-0561021 Hex Nut 5/16 1
282 GHD20PF-282 Plug """"'''''''''''''''''''''''''''''''''''''''''''''''''''''''' 7/8 1
283 GHD20PF-283 Oil Seal 1
287 GHD20PF-287 Spring Pin """'"'''''''''''''''''''''''''''''''''''''''''''''' 2
291 2450051 Pin 1
313 2450063 Grip. '"'''''''''' '''''''''' ... 1
315 GHD20PF-315 Washer """"""""""'"'''''' 3/16 ... 2
330 2401085.. DustPlate """"""""" 1
332 GHD20PF-332. , ... Pin 1
333 .2450069 ... Dust Plate 1
341 GHD20-341 Motor Cord 1
342 GHD20-342 Power Cord 1
345 GHD20PF-345 Nut 1
346 GHD20PF-346 Manual Feed Knob '"'''''''''''''''''''''''''''''''''''''' 1
347 GHD20-347 '''''''''' '''''''''''' Name Plate """" '"'''''''''''''' '"'''''''''' ...1
348 .245OO86A Pinion Shaft """""""""""""""""""""""""" 1
349.. 2450097.. Spring Pin """""""""""'" """""""" """ 2
16

350 .2450096 ClutchScrew 1
351 .2450095 ,Clutch Nut """""""'"'''''''''''''' 1
352 .2450068 Gear Box 1
353 ..,,..2450081 A.. Gear Shaft "'"'''''''''''' ' 1
354 ......2450082A Speed Change lever.. 1
355 .2450083A Stop " , , 1
356 ..245OO84A " Spring leaf '"'''''''''''' , 1
357 GHD20PF-357 Pin ... ,...,..' ..,2
358 ..245OO89A Bushing Bracket.. .. , 1
359 .,...,245OO72A Bearing Bushing.. , '.. 1
360 .. 2450071A Bearing Bushing 1
361 .245OO70A "Bearing Bushing .. ','"'''''' , 1
362 .2450074A , Washer , , 4
363 ..". ,2450073A ", Shaft , , .., '.. .., 1
364 ..245OO78A TransmissionWorm "'''''''''''''''''''''''' 1
365 ..2450075A .BearingBushing ..., 1
366 ..245OO76A.. Bearing Bushing 1
367 ..2450077A BearingBushing "... 1
3~ "'" .2450085A """""'" "'" ,. , Spacer Ring . , 1
369 ..2450079 Speed lever . ...1
370 GHD20PF-370 Speed Scale 1
371 ......290089.. Spring , 1
372 ' GHD20PF-372., Steel Ball .""'"'' 1
373 .2450087A Clutch Bushing 1
374 GHD20-374 FlatWasher 1/2x7/8x2... 1
375 .24501 00 Washer ". " ;1
376 GHD20PF-376 E-Retainer Ring E5 2
377 GHD20PF-377 Hex Socket Head Screw 5/16x1-1I41 4
378 CA6oo3ZZ Ball Bearing , " 4
379 GHD20PF-379 , ,. Key , 5x5x28l 1
380 ..,...GHD20PF-380.., C-Ring 1
381 ..245OO88A """"""""'"'''''' Graduated Bottom Ring.. 1
17

Head Assembly for GHD-20PF/20PFT
49
.......
00
'\J'~
79
3V ,
52
~-1
249
106
113
238
109
86
~88