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Summary of Contents for Kubota KX91-3
- Page 1 KUBOTA KX91-3 MINI EXCAVATOR PHONE: 1-800-267-2665 FAX: 1-888-267-3745...
- Page 2 CONDENSER The condenser hangs of the back of the machine just above the rear window as shown. Two of the mounting brackets connect to existing lugs at the roof of the machine. The additional two brackets are located a couple of inches above the window. Lower brackets, fastened as shown...
- Page 3 Set condenser into place hanging from top brackets. Mark and drill holes for lower brackets. Inside cab above rear window are two speaker caps. Remove to access the two lower condenser bracket bolts. Nut and bolt for lower condenser brackets...
- Page 4 COMPRESSOR Disconnect and remove alternator New alternator bracket installed as shown. Install alternator as shown and let hang down until compressor in installed.
- Page 5 ½” spacer ¼” spacer Sliding roll will allow the compressor to tighten without breaking off the ear. Set the compressor over the lug that the alternator was previously mounted to. Use a ½” spacer at front and ¼” spacer at rear. Do not tighten until belt alignment has been verified.
- Page 6 Original tightener bracket Install the compressor belt over the inside pulley of the compressor clutch. The bracket which had been on the alternator will be the new compressor tightener bracket. Spacers are provided as shown in picture. Tighten all compressor hardware and belt. Install the belt from the compressor to the alternator.
- Page 7 Tightener bracket to alternator.
- Page 8 HOSE RUNS Remove the small cover plate Cut this piece out...
- Page 15 EVAPORATOR Remove seat Remove the floor plate...
- Page 16 Remove the heater box. NOTE: Clamp off heater lines and disconnect electrical Heater box removed...
- Page 17 Remove engine compartment access door.
- Page 21 ELECTRICAL Remove the existing heater switch and decal. Drill a 5/8” hole for the AC switch and a 7/16” hole for the heater cable. Mount the blower switch where the original heater switch was. Install switches and decals...
- Page 22 Relay installed Cut off old connection and crimp on new 3 pin weatherpak connector and install relay.
- Page 36 EVAPORATOR AIR DUCTS Relocate the window hammer to the new location as shown.
- Page 37 Upper vent secured in place where the window safety hammer was located.
- Page 38 Air vent installed as shown.
- Page 45 CHARGING AND TESTING 1) Pressure test the system using nitrogen to a pressure of 250 psi. Check for leaks. 2) Add 2oz of SP20 Sanden PAG oil to the system. 3) Vacuum the system for at least ½ hour. 4) Check that the vacuum holds. 5) Fill the system with 2.75 to 3 lbs of R134a refrigerant.
- Page 46 Refrigerant Flow Pattern in a Standard Air Conditioning System 5/16” lines 13/32” line (discharge) ½” line (suction)
- Page 47 Thermostat Setting Procedures 1) Thermostat types a) preset b) adjustable a) A preset thermostat is adjusted to its specific cut in and cut out temperatures when manufactured and does not have a rotary adjustment for the operator. b) An adjustable or rotary thermostat has been manufactured to a predetermined cut in and cut out temperatures, but it is also operator adjustable to achieve the desired comfort level.
- Page 48 Once the probe is inserted, the A/C system needs to be tested. Run the system to ensure that the thermostat is cycling the compressor off at the appropriate temperature. A core temperature ranging between 25° and 30° F should cause the thermostat to cycle off. The air temperature at the vent outlet closest to the evaporator coil should be between 38°...
- Page 49 Aeroquip E-Z Clip Assembly Instructions Step 1. Cut the hose to proper length with an appropriate cutting tool. Aeroquip’s hand held hose cutter has been specially designed for cutting all non-wire reinforced hose, such as GH-134 Multi-Refrigerant hose. Be sure the cut is made square to the hose length.
- Page 50 Step 5. Snap the cage into the groove on the nipple. The arms should extend over the hose length. When the cage has been correctly installed in the cage groove, the cage will be able to rotate in the groove. This step MUST be performed to ensure: 1.
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