15
GE-P-6620 G G e e h h l l Parts Manual 6620 Skid Steer THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF GEHL OR IT’S SUCCESSORS. GEHL AND IT’S SUCCESSORS ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL. TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS. Parts Manual

Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

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Page 1: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

GE-P-6620

GGeehhllParts Manual

6620 Skid Steer

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF GEHL OR IT’S SUCCESSORS. GEHL AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Part

s M

anua

l

Page 2: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

,'; ", ,~' '.'. ::'. " ,;" ':,<. :-.:C. ..',

. .. 'Skid Loader

.' .

SERVICE PARTS MANUAL

Page 3: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

Introduction: When ordering service parts, specify the correct part number, full description, quantity required, and the unit model and serial numbers. Model and serial num­bers for this unit are on a Decal located ;nside the Right Chassis Riser, between the Lift Arm and Lift Cylinder.

"Right" and "Left" are determined from a position sitting on the Seat and facing forward. From this posi­tion, the Propulsion Control T -bar is on the left and the Lift/Tilt Control T-bar is on the right.

GEHL® Company reserves the right to make changes or improvements in the design or construction of any part of the unit without incurring the obligation to install such changes on any previously delivered units.

NOTE: On original Tire replacement, company policy prohibits the sale of replacement tires for al/ original GEHL machinery. Replacement Wheel Sets are available and tire size information is called-out with the Wheel Sets to facilitate re­placement tire selection. ALL REPLACEMENT TIRES MUST BE PURCHASED LOCALL Y. .

Grease fittings and common attaching hardware, such as Cotter Pins, Set Screws, Woodruff Keys, Screws, Nuts, etc., are included in the parts lists, indented below the part it is (they are) associated with, but NOT illustrated, except where a particular routing or special fastening arrangement MUST be maintained.

The hardware listed is for mounting information and is NOT included with the replacement part. Refer to the following abbreviations table for fastener descriptions. In the Parts List, if a number precedes the abbreviation, the number represents either quantity required (if other than one per item) or size.

Unless otherwise specified, all Cap Screws or Bolts are Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or Bolts are Grade A.

The following abbreviations are used in this Manual:

ALT - Alternator AMP AR ASSY ASM'D AUX CS CYL

DEG DIA

- Ampere - As Required - Assembly - Assembled - Auxiliary - Cap Screw (Hexagon Head) - Cylinder - Degree - Diameter

DUR ENG FRT FT-LB GR HD HEX HHSDT HYD ID IGN IN-LB

HC JN LorLW LH LN LT MM or mm MTG N NF NILN Nm NPT P OD OPT RH RHMS

- Durometer - Engine - Front - Foot-pounds (torque) - Grade - Hard or Heavy Duty - Hexagon shaped - Hex Head Self-drilling Thread screw - Hydraulic - Inside Diameter - Ignition

- Inch-pounds (torque) - Joint Industry Conference (Stds) - Jam Nut - Lock (Washer) - Left Hand - Lock Nut (Hexagon) - Left - Millimeter - Mounting - Nut (Hexagon) - See UNF - Nylon Insert Lock Nut - Neuton meter - National Pipe Thread - Plain (Washer) - Outside Diameter - Optional - Right Hand - Round Head Machine Screw

ROPS - Roll-over Protective Structure RT or RGT - Right SHCS - Socket Head Cap Screw SMV - Slow-moving Vehicle SN - Serial Number or Slotted Nut SOC SQHSS STD STR T TFS TCS THD THMS UNF

WI

- Socket - Square Head Set Screw - Standard ' . .. - Straight (thread) - Tooth or Teeth - Thread Forming Screw - Thread Cutting Screw - Thread - Truss Head Machine Screw - Unified National Fine (Thread) - With

Page 4: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

TABLE OF CONTENTS

Page

Introduction ............... Inside Front Cover Table of Contents . . . . . . . . . . . . . . . . . . . .. 1 Decal Locations . . . . . . . . . . . . . . . . . . . . .. 2-5 Chassis, Fuel Tank, Grill & Access Covers . . . . .. 6-7 Axles, Drive Chains & Related Components ..... 8-9 Encloser (ROPS), Seat & Engine Cover ....... 10-11 Instrument Panel, Wiring &

Electrical Components ....•.......... 12-13 Engine & Related Components ............ 14-15 Air Cleaner, Muffler & Radiator ........... 16-17 Hydraulic Pump, Filters, Control Valve & Oil Cooler

Single Gear Pump - Standard Equipment .... 18-19 Dual Gear Pump - Optional Equipment ..... 20-21

Hydrostatic Drive Components ............ 22-23 Lift{filt & Traction T-bar Controls ......•.. 24-25 Lift{filt Cylinders & Hydraulic Components .... 26-27 Auxiliary & Backhoe Hydraulics

Before SN3301 ................... 28-29 After SN3300 ............. ...... 30-31

Lift Arm & Quick-lock Mechanism 32-33 Hand Brake ....................... 34-35 Sound Deadening Components ..... . ...... 36 Hydraulic Components ..... 37-46

Lift Cylinder . . . . . . . . .. 37 Tilt Cylinder .... Grapple Cylinder .

37 38

Planetary Gearcase .. . . . . . . 38 Drive Motor .... ........ 39 Tandem Hydrostatic Pump . . .... 40-41 Single Gear Pump (Rexroth) ..•.... 42 Single Gear Pump (Cessna) ....... 42 Dual Gear Pump (Rexroth) . . . . . . . 43 Main Control Valve ................... 44

Printed in U.S.A. 1

Differential Relief Valve ............ .

Page

44 45 46

Self-leveling Valves .. Solenoid Valve . . .

Accessories . . . . . . . Backup Alarm ... Enclosed Alternator .. Horn Kit ........ .

47-57 47 47 47

Dual Flasher Kit .............. 48 Strobe Light & Amber Warning Beacon . 49 High Flow Pump Kit . . . . . . . . . . . . . 44-45 Rigid All-weather Enclosure ........ . 50-51 Hydraulic Oil Heater Kit .......... 51 Heater Defroster Kit . . . . . . . . . . . . . . . 52 Door Wiper Kit . . . . . . . . . . . . . . . . . . . 53 Dual Element Air Cleaner Kit .......... 53 Dual Pump Mounting Kit

(Units Before SN330l) 54-55 Air Purifier Kit Dual Pump Kit Pre-cleaner Kit

Attachments Buckets Utility Grapple Pallet Forks . . Utility Fork ........ .

.. 55 56-57

.. 57 . 58-64

58 59 60 61

Brooms, Trenchers, Augers & Sweeper/Bucket ..............•. 61

62 63 64

Snow Blower & Truck Loading Spout Impulse Breakers • . . . . . . Rock Hound ......... .

Numerical Index ........ . Hardware Torque Specifications Attaching Hardware Table ...

. 65-72 Inside Back Cover Inside Back Cover

904513/1 P1 089

Page 5: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

DECAL LOCATIONS GENERAL INFORMATION Decal Locations infonnation is provided to assist in the proper selection and application of new decals, in the event the original decal(s) become(s) damaged or the machine is repainted. Refer to the listing fOr the illustration reference number, part number, description and quantity of each decal provided in the Kit Refer to the appropriate illustration(s) for replacement location(s).

NOTE: Refer to the SAFETY Chapter in the Operator's Manual for the specific information provided on aI/ of the various Safety Decals furnished in the Decal Kit(s).

To ensure proper selection for correct replacement decal(s), compare all of the various closeup location photographs to your machine BEFORE starting to refinish the unit Then, circle each pictured decal (applicable to your machine) while check­ing-off its part number in the listing. Mter you have verified all of the decal needed for replacement, set aside unneeded decals for disposal.

PAINT NOTICE

For refinishing, order paint from this list: 901225 902872 902873 610239 902874 902875

One Gallon Blaze One Quart Gray One Quart Black 6 (12oz Spray Cans) Blaze 6 (12oz Spray Cans) Gray Paint 6 (12oz Spray Cans) Black Paint

The Decal Set Number for the SL6620 is 079938. The Set includes the following:

Ref. Part No. No. Description & Quantity

1 056859 Decal - Coolant Mixture 2 067493 Red Reflector Strip (2 Places) 3 072148 DANGER -Avoid Electrical Contact 4 072776 DANGER - Rotating Component 5 072794 Decal- Hydraulic: Oil 6 072797 Decal- Diesel Fuel 7 072798 Decal - Coolant Under Pressure 8 072853 Decal - UftITiIt Lever 9 072854 Decal- Traction Lever

10 072935 Decal- Face "A" Instrument Panel 11 073030 GEHL - ROPS Front 12 073031 GEHL - ROPS Sides (2 Places) 13 073075 Decal- Slow-Fast (Turtle-Rabbit) Symbol 14 073076 Decal- Brake Symbol 15 073081 GEHL-Grill 16 073086 CAU110N -General Safety Precautions 17 073150 CAU110N -Check Overhead Guard

Safety Pin for Engagement 18 073151 CAU110N - Carry Load Low

90451311 P1 089 2

A CAUTION ALWAYS read and abide by the Safety Rules and Information shown on Decals. If Decal(s) become(s) damaged, unreadable or If the unit Is repainted, the Decal(s) MUST be replaced. If repainting, MAKE SURE ALL Decals which apply to your machine are properly affixed to your unit In their proper locations.

NEW DECAL APPLICATION Surfaces MUST be free from dirt, dust, grease and other foreign material before applying the new decal. To apply a solid­fonned decal, remove the smaller portion of the decal backing paper and apply this part of the exposed adhesive backing to the clean surface while maintaining proper position and align­ment Slowly peel off the other portion of the backing paper while applying hand pressure to smooth-out the decal surface. To apply a die-cut Decal, fIrSt remove the backing paper. Then, properly orient and position the Decal onto the clean mounting surface. Mter the Decal is firmly applied and smooth pressed­down, remove the front covering paper.

19 073152 CAU110N - Carry Load Low 20 073153 CAU110N - Electrical Ground 21 073173 CAU110N - Mechanical Lift Cylinder Lock 22 073391 CAU110N - Keep Operator's Manual Here 23 074433 WARNING - Keep Feet Inside 24 076445 WARNING -Jump-starting Loader 25 079353 6620 (2 Places) 26 079354 Right Rear Stripe 27 079355 Left Rear Stripe 28 079356 Right Front Stripe 29 079357 Left Front Stripe ' ;

30 079358 Oecal- Overhead Guard (ROPS) Rating 31 079359 Decal- Face "C" Instrument Panel 32 079360 Decal- Face "B" Instrument Panel 33 079361 CAU110N - Fasten Seat Be~ 34 079362 Decal- Hydraulic Oil Level 35 079363 CAU110N - Operating Capacities 36 079485 CAU110N - Check Lock Pin Engagement 37 079486 WARNING - Disc Brake Function 38 079487 Decal- Maintenance Schedule 39 079720 CAU110N - Read Operator's Manual 40 080677 Decal - Engine Fuel 41 080678 Decal- Hydraulic Oil 42 088790 Decal- Aux. Hydraulics 43 088791 Decal - Glow Plug Operation

Printed In U.S.A.

.,. ,'c ... '...~

Page 7: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

DECALS LOCATIONS (Continued)

The Decal Set Number for the SL6620 is 079938. The Set 20 073153 CAUTION - Electrical Ground includes the following: 21 073173 CAUTION - Mechanical Lift Cylinder Lock

~ 073391 CAUTION - Keep Operator's Manual Here 23 074433 WARNING - Keep Feet Inside

Ref. Part Description & Quantity 24 076445 WARNING -Jump-starting Loader No. No.

25 079353 6620 (2 Places) 1 056859 Decal - Coolant Mixture 26 079354 Right Rear Stripe 2 067493 Red Reflector Strip (2 Places) 27 079355 Left Rear Stripe 3 072148 DANGER - Avoid Electrical Contact 28 079356 Right Front Stripe 4 072776 DANGER - Rotating Component 29 079357 Left Front Stripe 5 072794 Decal - Hydraulic Oil 30 079358 Decal- Overhead Guard (RaPS) Rating 6 072797 Decal - Diesel Fuel 31 079359 Decal - Face wC· Instrument Panel 7 072798 Decal- Coolant Under Pressure 32 079360 Decal- Face wBw Instrument Panel 8 072853 Decal - LifVTiIt Lever 33 079361 CAUTION - Fasten Seat Belt 9 072854 Decal- Traction Lever 34 079362 Decal- Hydraulic Oil Level

10 072935 Decal- Face wA- Instrument Panel 35 079363 CAUTION - Operating Capacities 11 073030 GEHL - RaPS Front 36 079485 CAUTION - Check Lock Pin Engagement 12 073031 GEHL - RaPS Sides (2 Places) 37 079486 WARNING - Disc Brake Fundion 13 073075 Decal- Slow-Fast (Turtle-Rabbit) Symbol 38 079487 Decal - Maintenance Schedule 14 073076 Decal- Brake Symbol 39 079720 CAUTION - Read Operator's Manual 15 073081 GEHL-Grill 40 080677 Decal- Engine Fuel 16 073086 CAUTION - General Safety Precautions 41 080678 Decal - Hydraulic Oil 17 073150 CAUTION - Check Overhead Guard 42 088790 Decal- Aux. Hydraulics

Safety Pin for Engagement 43 088791 Decal- Glow Plug Operation 18 073151 CAUTION - Carry Load Low 19 073152 CAUTION - Carry Load Low

.. ,

90451311 P1089 4 Printed In U.S.A.

Page 9: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - CHASSIS, FUEL TANK, ACCESS COVERS & GRILL

Before SN2651

34

NOTE 1: Used on models with Single Gear Pump, ONLY.

NOTE 2: Used on models with optional Dual Gear Pump, ONLY.

904513/1 P1 089

18 19 \

~@ ~32;;

'"t-24 21 [i'25 lr'26 ~5

24

Before SN2901

6

, ; , ,

51

5 Before SN2651

28 27~

52

o~

After SN2650 & Before SN3301

Printed in U.S.A.

. ~

Page 10: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - CHASSIS, FUEL TANK, ACCESS COVERS & GRILL

Ref. No.

1 2 3

4

5

6

7

8

9

10 11 12 13

Part No. Description

Oty. Req.

079483 FLANGE/TANK .................. 2 079482 ADAPTER/TANK ................ 2 061166 CLAMP/HOSE ................... 1

(USED AFTER SN3125) 0553358 CLAMP/HOSE (USED AFTER .... 1

SN2650 & BEFORE SN3126) 079339 BRACE/TANK ................... 1

650491 CS 3/8XH/4 (NILN.P) ........ 1 080534 TANK/ASSY ..................... 1

(USED AFTER SN2650) 0793328 TANK/ASSY ..................... 1

(USED BEFORE SN2651) 079335 TUBE/RETURN .................. 1

(USED AFTER SN2650) 087852 CLAMP/HOSE .. , ............... 3

(USED AFTER SN2650) 079336 TUBE/SUCTION ................. 1

(USED AFTER SN2650) 650548 RHMS #10-24X1I2 (L) .......... .

(USED AFTER SN2650) 0520488 SCREW/HHSDT #10-32Xl/2 ..... 5

(USED BEFORE SN2651) 077712 WIRE (USED BEFORE SN2901) .. 1 079267 SENDER/FUEL .................. 1 072343 GASKET/FUEL SENDER ........ 1 072574 GASKET/CLEAN OUT ........... 1

14 073956 COVER/HYD CLEAN OUT ........ 1 651168 TCS 3/8X3/4 .................. 8

15 570016 FITTING/RELIEF ............... 1 16 660025 COUPLING/PIPE 1/8 ............ 1 17 660031 NIPPLE/PIPE 1/8 X 3 ............ 1 18 079416b CAP/LOCKING .................. 2 19 073115 GUARD/SPILL .................. 2

650293 TFS #1 OX3/8 .................. 4 20 080680 CHAIN .......................... 2

(USED AFTER SN2650) 21 080679 RETAINER ..................... 2

(USED AFTER SN2650) 22 650517 PLUG/HEX SOC PIPE 1/4 ........ 1 23 074860 STEM/RUBBER ................. 3 24 079168 ELBOW/PIPE TO BARBED ...... 2 25 062023 CLAMP/HOSE .................. 2 26 079169 TUBE/OIL LEVEL ............... 1 27 064873 SHEET/MILL SAFETY STEP ..... 2

(USED AFTER SN2650) 079346 8 MAT/FLOOR .................... 1

(USED BEFORE SN2651) 28 087023 PLATE/FLOOR .................. 1

(USED AFTER SN3300) 080476 PLATE/FLOOR (USED AFTER .... 1

SN2650 & BEFORE SN3301) 079345 PLATE/FLOOR (USED BEFORE . 1

SN2651) 650486 CS 5/16X3/4 (L) ............... 2 650487 CS 5/16Xl (L.P) ............... 2

29 079174 GASKET/COVER ............... 2

Printed In U.S.A. 7

Ref. No.

30

31

32

33

34

35 36 37

38

39 40 41

42 43 44

Part No. Description

Qty. Req.

078595 COVER/ACCESS ............... 2 651168 TCS 3/8X3/4 ................. 24

079347 CONSOLE/SIDE RIGHT .... " ... 1 650486 CS 5/16X3/4 (L.P) ............ 2

079348 CONSOLE/SIDE L TASSY ...... 1 650486 CS 5/16X3/4 (L.P) ............ 2

079369 COVER/BOTTOM FRONT ....... 1 650495 CS 1/2Xl-l/4 (L.P) ............ 2

079368 COVER/BOTTOM REAR ......... 1 650495 CS 1I2Xl-1/4 (L.P) ............ 1

057569 PLUG/PIPE MAGNETIC ......... 1 079167 WASHER ..................... 40 046022c BOLT/WHEEL ................. 40

(40) 1/2NF-NILN GR8 080488 CHASSIS/ASSY ............... .

(USED AFTER SN2650) 078743 CHASSIS/ASSY .............. ..

(USED BEFORE SN2651) 650576 PLUG/PIPE HEX SOC 1/2 ...... . 079310 PiN/LATCH ..................... 2 079311 ROD/LATCH .................. ..

655001 PIN/COTTER 1/16X3/4 ........ 2 (2) 1/4P

13E29 SPRING/COMPRESSiON ...... . 056937 WASHER .................... .. 054842 PiN/CLEViS .................. .

650551 PIN/COTTER 3/32X3/4 ....... . (1) 1/4P

45 079306 TUBE/SPACER ................. 2 650416 CS 3/4X2-1/2 (NILN) .......... 2

46 079309 LEVER/GRILL .................. 1 47 062282 GRIP ........................ .. 48 075237 BUSHING/PIVOT .. , ........... .

650835 CS 1/4Xl (NILN.P) .......... .. 49 079170 BASE/TANK .................... 1 50 079171 RETAINER/TANK ............... 1

650487 CS 5/16Xl (NILN) ............. 2 51 092575 GRILl/REAR ASSY ............. 1

(USED AFTER SN3900) 0793008 GRILl/REAR ASSY ............ .

(USED BEFORE SN3901) 52 047269 SOCKET/MOUNTING ............ 1

650486 CS 5/16X3/4 (NILN) ........... 2 53 087017 COVER (USED ON SINGLE ...... 1

GEAR PUMP MODELS. ONLY) 650486 CS 5/16X3/4 (N.L) ............ 3

087019 COVER/ASSY (USED ON DUAL .. 1 GEAR PUMP MODELS. ONLY)

650486 CS 5/16X3/4 (N.L) ............. 3 54 073458 STRIP/NON-SKID SURFACE .... 1 55 080480 ANGLE/RESET ................ .

8) For replacement, use current part(s). b) For replacement Key, order 080306. c) For repair before SN2901, use CS 651204 and

NILN 087267.

904513/1 Pl 089

Page 11: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - AXLES, DRIVE CHAINS & RELATED COMPONENTS

19

Left Side

23

Early Style (Refer to text for SN breaks)

904513/1 P1 089 8 Printed in U.S.A.

Page 12: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - AXLES, DRIVE CHAINS & RELATED COMPONENTS

Ref. No.

Part No.

0789618 651211

Description aty. Req.

GEARCASE/PLANETARY ASSY .. 2 CS 3/8NFX3-1/2 GR8 (L) ..... 24

2 078962 RING/RETAINING .............. 2 3 078945 BEARING/CONE ................ 6 4 078946 BEARING/CUP .................. 6 5 078963b GASKET/PLANETARY .......... 2

(USED BEFORE SN3501) 6 088470 ADAPTER/PLANETARy .......... 2

(USED AFTER SN2900) 651085 CS 1/2NFXl-3/4 GR8 ........ 22

(22) 1/2NF-NILN 078634e ADAPTER/PLANETARy .......... 2

(USED BEFORE SN2901) 6A 046022d BOLT/WHEEL 12

(USED BEFORE SN2901) 6B 079167 WASHER ..................... 12

(USED BEFORE SN2901) 6C 046001d NUT/WHEEL ........ 12

(USED BEFORE SN2901) 7 078943 BEARING/CUP .................. 6 8 078944 BEARING/CONE ................ 6 9 078947 SEAL/OIL ...................... 6

10 11 12

13

14 15 16

17 18

078959 RETAINER/ASSY ................ 4 078958 SHIM ... " .................... AR 078953 TAKEUP ....................... 4

655020 PIN/COTTER 3/16Xl-l/2 ....... 4 650572 CS 5/8X2-3/4 (L) ............... 4

(4) 3/4NF-SN,P 041885 CONE/BEARING ................ 8

(USED AFTER SN2650) 054750e CONE/BEARING ................ 8

(USED BEFORE SN2651) 041884 BEARING/CUP .................. 8 078955 SPROCKETIIDLER ASSY 14T .... 4 078952 TAKEUP/ASSY . " ............... 4

650354 CS 5/8X4-1/2 (L) ............... 4 650667 SQHSS 5/8X4 (IN) .............. 4 078949 WASHER ....................... 4

Printed In U.S.A. 9

Ret. No.

19 20 21

22 23

24

25 26 27

28 29

30

Part No.

078603 078948 078612

570002 078657 078652

650554

079154 079157 081919 081920 079152 079155 078950e

078599 078951 f

Description aty. Req.

SPROCKET/ASSY 50T .......... 4 WASHER/SHIM ............... AR ADAPTER/WHEEL .............. 4

FITTING/GREASE ............. 4 BOLT/WHEEL ................. 32 AXLE/ASSEMBLED ............. 4

PIN/COTTER 1/4X2-1/4 ........ 4 (4) 1-1/4NF-SN

WHEELl15X6LB GREy .......... 4 WHEELl16.5X9.75 GREY ....... 4 WHEEL & TIRE/SOLID .......... 4 TRACK (NOT SHOWN) .......... 2 NUT/WHEEL ................... 32 STEMIVALVE .................. 4 CHAIN/ROLLER (#80HE) OF 72 . 2

LINKS INCLUDING ONE 080305 PLAIN CONNECTOR W/PRESS­FIT SIDE BAR & COTTER PIN.

SHAFT/PLANETARY ASSY ..... 2 CHAIN/ROLLER (#80HE) OF 86 . 2

LINKS INCLUDING ONE 080305 PLAIN CONNECTOR W/PRESS­FIT SIDE BAR & COTTER PIN

078964b GASKET/ADAPTER ............. 2 (USED BEFORE SN2651)

8) For service see pages titled Hydraulic Components.

b) NO replacement required; use RTV108 or equivalent sealant.

e) For replacement, order current part(s). d) For repair before SN2901, use CS

9/16NFxl-3/4 (651204) and NILN 9/16NF (087267).

e) Short Chain for left front and right rear. f) Long Chain for left rear and right front.

904513/1Pl089

Page 13: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - ENCLOSURE (ROPS), SEAT & ENGINE COVER

Early Style

904513/1 P1 089

&-11 @-12

Restraint Bar Assembly (Inside Overhead Guard)

10

16 ~ 11 , c>;;{ 18

~d19 ~

Printed In U.S.A.

.. ",; ..

Page 14: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - ENCLOSURE (ROPS), SEAT & ENGINE COVER

Ref. No.

2 3 4

5

6 7

8 9

10

11 12 13 14 15

16 17

18

19 20

21

22 23

Part No.

Description Oty. Req.

072839 WEATHERSTRIP/WINDOW T&B .. 2 072838 WEATHERSTRIP/WINDOW SIDE 2 072837 WINDOW/CAB REAR ............ 1 079406 COVER/ENGINE ASSY .......... 1 079176 GUARD/OVERHEAD ......... '" 1

650867 CS 5/8X5 (NILN) ............... 2 079274 TRIM .......................... 1 079275 GUARD/CHANNEL ASSY ........ 2

650945 THMS 1/4X3/4 ................. 6 078580 POUCH/MANUAL ............... 1 078581 RiVET/BLIND ................... 4 073776 WASHER ....................... 2

650850 CS 1/2X2-3/4 (NILN) .......... 2 057557 WASHER ....................... 4 064543 ISOLATOR/ROPS FRT MTG ...... 2 R013247 SPRING/COMPRESSION ........ 1

074090 073103

079266 079192

650490 074119

650490 074021 H6053 650487

082270a 079291 b

080751 083552c

PIN/ROLL 3/16X1-1/2 ............ 1 PIN/STOP ...................... 1

(3) 1/2P SPRING/TORSION RT ........ '" 1 TUBE/PIVOT ASSY RT .......... 1

CS 3/8X1 (NILN) .............. 2 TUBE/PIVOT ASSY LT .......... 1

CS 3/8X1 (NILN) .............. 2 SPRING/TORSION L T ........... 1 SPACER ....................... 2

CS 5/16X1 (NILN.P) ............ 2 SEAT/ASSY (LATE STYLE) ...... 1 SEAT (EARLY STYLE) .......... 1

(4) 5/16 N. L ADJUSTER/SEAT RIGHT ........ 1 SEAT ONLY (LATE STYLE) ..... 1

Printed In U.S.A. 11

Ref. No.

24

25 26 27

28

29 30 31 32 33 34

Part No.

Description Qty. Req.

083498 ADJUSTER/ASSY SEAT LEFT (FOR LATE STYLE SEAT)

080750 ADJUSTER/SEAT LEFT ......... 1 (FOR EARLY STYLE SEAT)

078736 BAR/SECONDARY RES ASSY .. 073043 BELT/SEAT ..................... 1 078733 SPRING/BELT RETAINER ...... 2

650495 CS 1/2X1-1/4 (NILN) .......... 2 078732 SLEEVE/PLASTIC SEAT BELT .. 2

650944 THMS 1/4X5/8 (NILN) ......... 2 078734 COVER/PIVOT .................. 2 067950 056937 054925 078726 079265

RING/EXTERNAL RETAINING ... 4 WASHER ...................... 8 BUSHING/PIVOT .............. 12 BRACKET/RIGHT ........ " ..... 2 SPACER ....................... 4

35 058920 CS 1/2X1-1/4 (L.P) ............. 4 36 078731 SWiTCH ....................... 1

650671 RHMS #1 0-24X1 (N.L) ........ 1 37 078730 SHAFT/PiVOT .................. 2 38 078729 BEARING/PIVOT UPPER ........ 2 39 078942 SPRING/COMPRESSION ....... 2 40 078723 ACTUATOR/SPRING ASSY ..... 2

650551 PIN/COTTER 3/32X3/4 ........ 2 41 078728 BRACKET/LEFT ................ 2 42 072490 ISOLATOR ..................... 2 43 079263 SWiTCH/RETAINER ............. 1

(USED BEFORE SN2651) 650531 TFS 1/4X1/2 .................. 2

a) For Suspension Seat Assy. order 091679. b) For replacement, order late style Seat Assy

082270 & Switch 080868. c) For Suspension Seat. order 083499.

904513/1 P1 089

Page 15: Gehl 6620 Skid Steer Loader Parts Manual · 2018. 11. 3. · Grade 5, cadmium or zinc plated; Hexagon Nuts for Grade 5 Screws or Bolts are Grade B; Hexagon Nuts for other Screws or

SL6620 - INSTRUMENT PANEL, WIRING & ELECTRICAL COMPONENTS

Lights, Mounting & Wiring

904513/1 P1 089 12 Printed in U.S.A.