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.
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