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OM-659 Page 7

3-6.

Installing Welding Generator

WARNING

FALLING EQUIPMENT can cause
serious personal injury and equipment
damage.

Use lifting eye to lift unit only, NOT running gear, gas
cylinders, trailer, or any other heavy options,
accessories, or devices.

Use equipment of adequate capacity to lift the unit.

TILTING OF TRAILER can result in
personal injury or equipment damage.

Install welding generator onto trailer with engine end
toward hitch end of trailer.

Distribute weight so trailer tongue weight is
approximately 10% of the gross trailer weight.

Use adequate blocks or lifting device to support
hitch end while pivoting trailer jack into position (see
Section 3-1).

Use trailer jack to obtain desired height and to
support tongue weight while installing welding
generator.

rwarn1.1* 3/93

ST-800 016-A

Support trailer with jack. Apply
parking brake.

1

Crossmember

2

Mounting Holes

3

Welding Generator

Align proper holes in generator
base with holes in crossmembers
(see table).

Install generators not listed in table
so unit is centered over
crossmembers.

If mounting accessories or genera-
tor not listed in table, adjust genera-
tor position so tongue weight is 10
- 15% of gross trailer weight.

Secure generator with supplied 5/8
in grade 5 hardware. Tighten
mounting hardware to 150 ft lb (200
N

.

m).

Generator Mounting Dimensions

A

B

All Big 20, Big 40, Big 50 Models

9-1/2 in (241 mm)

46-1/4 in (1175 mm)

Big 30A, Big Blue 251D

4-1/2 in (114 mm)

41-1/4 in (1048 mm)

Big Blue 400D

10-1/2 in (267 mm)

47-1/4 in (1200 mm)

Miller Air Pak, Big Blue 600D

13-3/4 in (349 mm)

50-1/2 in (1283 mm)

Trailblazer 44 & 55G* (Continental)

15 in (381 mm)

51-3/4 in (1315 mm)

All Other Trailblazer Models*

17 in (432 mm)

53-3/4 in (1365 mm)

*All Trailblazer models use the same base rails. Be sure to install the D and G models using the
correct mounting holes.

Model

Tools Needed: 

 1 in

15/16 in

1

2

3

A

B

Generator

End

Engine

End

36-3/4 in

(933 mm)

Use correct size SAE grade 5 locking-type
hardware to mount equipment on trailer.

Figure 3-7. Installing Welding Generator

Summary of Contents for 3000-4AH

Page 1: ...tion Four Wheel Tandem Axle Heavy Duty Trailer With Adjustable Hitch For Large Engine Driven Welding Generators 2750 lb 1247 kg Net Payload Capacity OM 659 029 715E October 1994 Visit our website at www MillerWelds com ...

Page 2: ...value established in 1929 This Owner s Manual is designed to help you get the most out of your Miller products Please take time to read the Safety precautions They will help you protect yourself against potential hazards on the worksite We ve made installation and operation quick and easy With Miller you can count on years of reliable service with proper maintenance And if for some reason the unit...

Page 3: ...shielding gas cylinder installed 3 The Gross Axle Weight Rating GAWR is the maximum load bearingcapacity of the axle s 4 Weigh trailer adjust weight by removing accessory equipment if necessary call local authorities for nearest scale location 5 Use gross trailer weight to select a proper towing vehicle GVWR Gross Vehicle Weight Rating Maximum Total Trailer Weight In cluding Its Load GAWR Gross Ax...

Page 4: ...ions regularly Repair or replace damaged parts or wires 5 Replace any broken lenses reflectors or bulbs Tail Stop And Turn Lights Side Marker Lights INCORRECT TORQUE on lug nuts or INCORRECT TIRE PRESSURE or BEARING MAINTENANCE can cause loss of control resulting in serious injury and equipment damage 1 Recheck lug nut torque after first 50 miles 80 km and once each year or every 12 000 miles 19 5...

Page 5: ...On Highway Vehicles and Off High way Machinery from Society of Automotive Engineers Inc 400 Com monwealthDrive Warrendale PA 15096 0001 REPORTING SAFETY DEFECTS If you believe that your vehicle has a defect which could cause a crash or could cause injury or death you should immediately inform the National Highway Traffic Safety Administration NHTSA in addition to notifying MILLER Electric Mfg Co I...

Page 6: ......

Page 7: ...Do not touch live electrical parts Disconnect input power before installing or servicing WARNING READ SAFETY BLOCKS at start of Section 3 1 before proceeding WARNING 5 4 6 7 1 2 CAUTION MOVING PARTS can injure Keep away from moving parts Keep all panels and covers closed when operating 3 Turn Off switch when using high frequency Figure 1 1 Safety Information SECTION 2 SPECIFICATIONS Table 2 1 Trai...

Page 8: ... device to support hitch end while pivoting trailer jack into position Use trailer jack to obtain desired height and to support tongue weight rwarn1 1 3 93 Ref ST 148 258 1 Parking Brake Use brake to manually apply trailer brakes when trailer is parked To use brake push handle forward until handle is nearly horizontal To release brake pull handle back to vertical position See Section 3 7 for parki...

Page 9: ... out end of channel 6 Sleeving Slip sleeving over leads Route leads through back of right taillight bracket 7 Taillight 8 Tail Hole 9 Stop Hole Insert stripped end of brown lead into Tail hole in rear of right taillight Insert green lead into taillight Stop hole Attach taillight to bracket with 1 4 in hardware 10 Sidelight 11 Marker Brown Hole Route stripped end of either supplied short lead throu...

Page 10: ...pport hitch end while pivoting trailer jack into position see Section 3 1 Use trailer jack to obtain desired height and to support tongue weight while installing tool box rwarn1 1 3 93 ST 800 014 Support trailer with jack Apply parking brake 1 Bracket Attach brackets to frame using 3 8 16 x 1 hardware Tighten hard ware to 31 ft lb 40 N m 2 Tool Box 3 Mounting Tab Place box on brackets and align mo...

Page 11: ...er jack to obtain desired height and to support tongue weight while installing cylinder rack and cylinders warn4 1 9 91 rwarn1 1 3 93 ST 800 013 C Support trailer with jack Apply parking brake 1 Cylinder Rack Install rack on frame as shown Se cure rack with 1 2 13 x 1 1 2 in hardware Tighten hardware to 75 ft lb 100 N m Install shielding gas cylinder as follows 2 Clamp Pull back clamp to release I...

Page 12: ... connection between trailer and towing vehicle 2 Lunette Eye Hitch Optional 3 Ball Hitch Optional Attach hitch to channel using 1 2 20 x 4 1 2 in hardware Tighten hard ware to 75 ft lb 102 N m Secure hitch to towing vehicle 4 Knob 5 Lever If using ball hitch set trailer onto towing ball and turn knob clockwise until tight To release hitch hold lever down while turning knob counterclock wise 6 Safe...

Page 13: ...n proper holes in generator base with holes in crossmembers see table Install generators not listed in table so unit is centered over crossmembers If mounting accessories or genera tor not listed in table adjust genera tor position so tongue weight is 10 15 of gross trailer weight Secure generator with supplied 5 8 in grade 5 hardware Tighten mountinghardware to 150 ft lb 200 N m Generator Mountin...

Page 14: ...y 20 000 miles and re place if necessary When reinstalling wheels be sure wheel nuts are properly tightened see Trailer Towing Safety Precautions 3 Brake Fluid Reservoir Check fluid level in reservoir at least 3 times yearly Add fluid if not up to full mark Use DOT Series 3 brake fluid from a sealed con tainer See brake actuator Owner s Manual 4 Parking Brake Handle To adjust parking brake release...

Page 15: ...1 A Torque wheel bearings whenever hub nut is removed or hub is too loose Repack bearings according to Section 3 7 Torque nut while turning hub forward Turn nut until just loose Install new cotter pin and bend ends around nut Install cap Install wheel See Trailer Towing Safety Precautions and recheck endplay Check hub endplay If loose remove wheel and go to next step Remove cap and cotter pin Tool...

Page 16: ...LIST 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 40 46 47 Figure 4 1 Complete Assembly ST 147 524 D 20 26 Hardware is common and not available unless listed ...

Page 17: ... WASHER flat stl keyed 750 4 16 010 181 NUT hex slotted 750 16 4 17 028 492 HUB ASSEMBLY consisting of 2 18 028 931 HUB DRUM wheel 10in consisting of 2 167 787 KIT bearing 1 3 8 1 1 16 tapered axle consisting of 1 19 GREASE CAP 1 in 1 20 PIN cotter 125 x 1 500 1 21 BEARING L44649 1 22 CUP L44610 1 23 CUP L68111 1 24 BEARING L68149 1 25 OIL SEAL 1 3 8 1 26 028 929 CLUSTER brake 10 in RH consisting ...

Page 18: ...141 216 STRIP mtg brake line 2 601 948 SCREW cap stl hexhd 312 18 x 1 000 8 604 433 NUT stl slflkg hex hvy 312 8 040 543 CRT CYLINDER RACK consisting of 1 47 124 298 HOLDER cylinder 2 604 467 SCREW cap stl hexhd 500 13 x 1 500 8 602 246 WASHER flat stl 500 8 602 216 WASHER lock stl split 500 8 601 879 NUT stl hex full fnsh 500 13 8 OPTIONAL To maintain the factory original performance of your equi...

Page 19: ...tting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate 185 Spoolmate 250 Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as contact tips cutting nozzles contactors brushes slip rings relays or parts that fail due to normal wear 2 Items furnished by Miller but manufactured by others such as engines or trade accessories The...

Page 20: ... complete and retain with your personal records Always provide Model Name and Serial Style Number Call 1 800 4 A Miller or see our website at www MillerWelds com to locate a DISTRIBUTOR or SERVICE AGENCY near you Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Replacement Parts Training Schools Videos Books Technical Manuals Servicing Informati...

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