Miller Electric GP30 User Manual

OWNER’S MANUAL

GP30 LOADER

PARTS and INSTRUCTIONS

1242 ARIZONA AVE.

LARCHWOOD, IA 51241

1-800-570-8205

DANGER

TO PREVENT POSSIBLE ROLLOVER, OBSERVE THE FOLLOWING

SAFETY PRECAUTIONS

♦

♦

♦

Carry loads as low as possible
Drive tractor slowly when turning, operating on hills or inclines, or traversing un­even ground
Raise load to full height only when tractor in on even ground and front wheels
are straight ahead

TO PREVENT POSSIBLE PERSONAL INJURY, OBSERVE THE FOLLOW-

ING SAFETY PRECAUTIONS

♦

Never walk or work under a raised loader that is not firmly supported

♦

Always relieve the hydraulic system to zero pres sure before perf orming repairs on
any component of the loader’s hydraulic system

TABLE OF CONTENTS

• Composite Bearing Information

• Mounting Loader on Tractor

• Dismounting Loader

• Quick-attach Instructions

• Parts Schematics

• Cylinder Packing Detail

• Loader Specifications

• Warranty

SERIAL No. of Loader Purchased _______________________

Date Purchased____________________

COMPOSITE BEARING INFORMATION

FIG. A FIG. B

Bearing
Housing

Pin Seal

FIGURE A. Your GP/GL-Series loader is equipped

with composite, greaseless bearings at all (12) pivot
points. These high-quality bearings should not be
confused with plastic bushings, sintered bushings, or
metal-backed bearings. Composite bearings are
made from an ultra-strong fiberglass composite that
has twice the compressive yield strength of plain
carbon steel. Their greaseless feature is due to a
Teflon-impregnated liner that is interwoven to the
bearing’s inside diameter. The bearings are de­signed to last the life of the loader and the pins that
rotate in the bearings should exhibit practically no
wear.

Nose Shoulder

Bevel

FIG. C

Pin Seal

Bearing

FIGURE B. Even though the composite bearings on

your GP/GL-Series loader have excellent resistance to
dirt particles, the (4) pivot points on the bucket have
an added feature. The two lower bucket cylinder piv­ots and the two mainframe-to-bucket pivots are
equipped with pin seals on each end of the bearing
housing. It is these four pivot points that are usually
down in the dirt and grime, but with a GP/GL-Series
loader, you won’t have to worry about pin failures
again!

FIGURE C. Should any of your bearings have to be re-

moved, this photo shows the tool that is available to remove
and install the bearings properly. They are available for pur­chase, you just need to tell your dealer or Miller Loaders the
model of loader you have. If you’d prefer to make your own,
here are a few things to remember:

• The nose should be 1/4” longer than the bearing

• A 1/4” bevel on the end of the nose

• The shoulder must be just slightly smaller than the out-

side diameter of the bearing

• The diameter of the nose should be about 0.005 less
than the inside diameter of the bearing

MOUNTING LOADER

FIG. 1

FIG. 4A

Support shaft

FIG. 2

FIG. 4B

Upright mast

FIG. 3

FIG. 4C

V-Block

Tapered

Guide Block

FIG. 7

FIG. 5

FIG. 6

Stand Legs Stand Legs Stored

STEP 1 For a new loader installation, the mountings must be installed on the tractor first. Refer to the typical

mounting kit shown in Figure 1. A detailed schematic of your specific kit is available—just call 1-800-570-8205 if the
schematic was not included with your new loader.

STEP 2 The loader should have been dismounted (or assembled) on flat, level ground (see Figure 2).
STEP 3 Approach the loader as shown in Figure 3 and connect the hydraulics.
STEP 4 Once the hydraulics are functional, begin to slowly tip the bucket forward from its flat position, see Figure

4A. This will bring the upright masts of the loader towards the support shafts on the mountings (Fig. 4B). Figure 4C
shows the mast completely seated on the support shaft. Once the mast is resting on the support shaft, the V-block
will also be aligned with the tapered guide block. The lift cylinders can be used to rotate the upright mast and firmly
seat the V-block against the guide block.

STEP 5 Using a 1-1/2” socket or end wrench, install and tighten the 1” retaining bolt that secures the V-block to

the guide block. See Figure 5.

STEP 6 Raise the bucket off the ground so that the stand legs are hanging free. See Figure 6.
STEP 7 Return the stand legs to their stored position. See Figure 7.

DISMOUNTING LOADER

FIG. 1

FIG. 6A

Upright Mast

Pillar Mount

FIG. 2

FIG. 3

FIG. 4

FIG. 6B

Stand Legs

FIG. 5

FIG. 7

STEP 1 DRIVE THE TRACTOR ONTO FLAT CONCRETE and place the loader in the position shown in Fig 1.
STEP 2 Remove the stand legs from their stored position and place them in their dismount position. Slide the in-

ner tubes down to the extended position and secure them with the 3/4” pins. See Fig. 2.

STEP 3 Gently lower the loader until the stand legs touch the ground. Please note that the stand legs are not de-

signed to withstand all of the down-force that can be generated with the lift cylinders, they are designed to support
the weight of the loader only. Rotate the bucket so that the cutting edge and stand legs are all resting on the
ground. See Fig. 3.

STEP 4,5 Using a 1-1/2” socket or end wrench, remove the 1” retaining bolt that secures the V-block to the guide

block. See Figures 4,5.

STEP 6 Using the bucket cylinders, slowly flatten the bucket. This will start to lift the upright mast out of the pillar

mount, see Figure 6A. When the bucket is completely flat on the ground, the upright mast will be high enough to
back away from the loader. See Figure 6B

STEP 7 Disconnect the hydraulic supply to the loader and slowly back away from the loader. See Figure 7.