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MODEL 989021 SELF-PROPELLED, STRADDLE LIFT TRUCK Operation Maintenance Repair Parts List Global Industrial MANUAL NO. BL-GL22-1119 - 11-20-2019 globalindustrial.com...
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WARNING Do not operate this truck unless you have been autho- Do not overload truck. Check nameplate for capacity rized and trained to do so, and have read all warnings and load center information. and instructions in Operator’s Manual and on this When using forks, space forks as far apart as load will truck.
• Dead-man brake to apply the brake and cut off drive power when the steering arm is released. speed range. The 989021 lift truck can be driven with forks raised or lowered; however, the speed is • Emergency brake switch to apply the brake and cut restricted when the platform is raised above a preset off drive power when depressed.
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R8560 Figure 1-2 989021 Lift Truck ITEM COMPONENT ITEM COMPONENT Load wheel Control handle. Power plug Drive wheel Battery indicator display Cover Key switch Battery Lowering button Caster wheel Lift button Hydraulic pump and motor assembly Directional/speed control knob Chassis...
This section gives detailed operating instructions for and loaded. the 989021 lift truck. The instructions are divided into the various phases of operations, such as operating • Be sure that mast is vertical - do not operate on a lift, driving, and stopping.
All Table 2-1 covers important inspection points on the service must be performed by a qualified 989021 lift truck which should be checked prior to maintenance technician. operation. Depending on use, some trucks may require additional checks.
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R8549 Figure 2-2 Sample of Operator Check List BL-GL22-1119 - 11-20-2019...
2-4. GENERAL CONTROL OPERATION. Lower the steering arm to a comfortable position above horizontal to disengage the brake and to The speed control (See Figure 2-3) located on each energize the electrical circuits. If the truck is not side of the control head provides fingertip control for moved, the electrical circuits will time out and will driving the truck.
2-7. STEERING ARM GAS SPRING. The steering arm gas spring automatically raises the steering arm to the upright position when the steering arm is released. If the steering arm does not return fully, the steering arm gas spring requires replace- ment.
3-3.1. General A voltage check from battery connector terminal to The 989021 is equipped with maintenance free batter- battery case should indicate near zero volts. Typically, ies. however, the sum of the voltages at both terminals will The care and maintenance of the battery is very equal battery volts.
3-3.2. Safety Rules Make certain battery used meets weight and size requirements of truck. NEVER operate truck with • Wear protective clothing, such as rubber apron, an undersized battery. gloves, boots and goggles when performing any maintenance on batteries. Do not allow electrolyte to 3-3.4.
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R8561 Figure 3-1 Battery Charging Battery Charging LED Table 3-2 Battery Charging LED Light (2) DISPLAY DESCRIPTION TROUBLESHOOTING Solid Red Battery is charging Normal operation. Solid Green Battery is fully charged Normal operation. The battery voltage is less than 13V or greater than Solid Yellow Battery failure 32.5V.
R8562 Figure 3-2 Changing Battery pivoting freely. With lift carriage fully lowered, spray or brush on a film of SAE 30 or 40 engine oil. 3-5. CHANGING BATTERIES Table 3-3 Recommended Lubricants Park truck at charging station with carriage lowered (See Table 3-4 for Application)
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R8563 Figure 3-3 Lubrication Diagram Table 3-4 Lubrication Chart FIG 3-2 LOCATION METHOD OF TYPE APPLICATION INDEX APPLICATION (Table 3-3) LUBRICANT Inner & Outer Mast Brush No. 2 Full length of channel where rollers operate. Lift Chain Brush or Spray No.
SECTION 4 TROUBLESHOOTING 4-1. GENERAL ate: Truck Does Not Operate Forward or Reverse: Trouble With Braking: Trouble With Lifting Or Lower- Table 4-1 as a guide to determine possible ing, and Miscellaneous malfunctions. causes of trouble. The table is divided into five main categories: Truck and Hydraulic System Will Not Oper- BL-GL22-1119 - 11-20-2019...
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Table 4-1 Troubleshooting Chart MALFUNCTION PROBABLE CAUSE CORRECTIVE ACTION TRUCK AND HYDRAULIC SYSTEM WILL NOT OPERATE Check fuse and replace if a. Fuse blown. necessary. Check fuse and replace if b. Fuse blown. necessary. Check battery connections and c. Battery dead or disconnected. check battery voltage.
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Table 4-1 Troubleshooting Chart - Continued MALFUNCTION PROBABLE CAUSE CORRECTIVE ACTION TROUBLE WITH BRAKING Check deadman switch for continuity. If none found when a. Defective deadman switch. the control arm is in the brake Truck does not slow with brake, or position, replace switch.
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Table 4-1 Troubleshooting Chart - Continued MALFUNCTION PROBABLE CAUSE CORRECTIVE ACTION TROUBLE WITH LIFTING OR LOWERING - Continued Check the oil level in the reservoir and the oil lines to the lift cylin- der, and repair as required. If Forks do not lift, motor runs. Defect in hydraulic system.
LED. 4-2.2. Hand Held Programmer (Optional) The hand held programmer is available that is designed specifically for use with the controller. The programmer is available through your Global Industrial dealer. 4-2.3. Fault Recording. R6759 Fault events are recorded in the controller's memory.
Put the controller into the diagnostic mode by that the circuit is operational by momentarily dis- pressing the "Menu Navigation Key" (1, Figure 4- connecting one of the emergency reverse wires. 2). Using the Navigation key, select the Faults The vehicle should be disabled and a fault indi- menu.
Leave the key switch on and remove the in-line The programmable parameters are grouped hierarchi- fuse wire. The vehicle status should continue to cally into menus, as shown in Table 4-2. remain off. The MultiMode feature of the controller allows oper- Cycle the key switch off and on.
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Table 4-2 Programmable Parameters Parameter Factory Setting Description DRIVE MENU Sets the rate (in seconds) at which the speed command increases when throttle is applied with the speed limit pot is in its maximum speed position, and the vehicle is traveling Accel Max Speed forward.
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Table 4-2 Programmable Parameters - Continued Parameter Factory Setting Description DRIVE MENU - Continued Sets the rate (in seconds) that is used to slow down the vehicle when it is traveling in reverse at low speed and throttle is Rev Decel Low reduced.
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Table 4-2 Programmable Parameters - Continued Parameter Factory Setting Description SPEED MENU During forward operation, defines the requested speed at full throttle when the speed limit pot is in its maximum speed position. M1/M2 Max Speed 100% Note: Allowable range is restricted by the M1/M2 Min Speed setting.
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Table 4-2 Programmable Parameters - Continued Parameter Factory Setting Description THROTTLE MENU The 1212 controller can accept inputs from both 5k, 3-wire pot throttles and voltage throttles. Set the throttle type param- eter to match the throttle used in your application. 5k, 3-wire pot throttles 0 = wigwag 1 = inverted wigwag...
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Table 4-2 Programmable Parameters - Continued Parameter Factory Setting Description THROTTLE MENU - Continued The throttle map parameter adjusts the static throttle map. The parameter setting corresponds to the throttle command at half throttle. Throttle Map A setting of 50% provides linear response. Values below 50% reduce the throttle command at low throttle positions, provid- ing enhanced slow speed maneuverability.
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Table 4-2 Programmable Parameters - Continued Parameter Factory Setting Description INHIBIT MENU The flexible speed input at J1 Pin 6 can be used to limit or to inhibit speed under certain conditions. For example, a switch could be installed under the seat so that if the operator drives the scooter while they are standing the max speed will be lim- ited.
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Table 4-2 Programmable Parameters - Continued Parameter Factory Setting Description HORN MENU - Continued Sets the reverse beep to be a constant tone (when pro- Beep Constant grammed On) or a 1Hz pulse (when programmed Off). MOTOR MENU Sets the system resistance (motor + brushes + wiring + con- nections) used for load compensation and speed estimation.
Parameter Factory Setting Description BDI MENU - Continued Voltage above which the battery is considered to start charging. Start Charger 28.1 Voltage Note: Allowable range is restricted by the Full Voltage and Full Charge Voltage settings. Voltage at which the BDI calculator will be reset to 100%, after the charger is disconnected and the controller is powered up.
The motor controller provides diagnostics information For suggestions about possible causes of the various to assist in troubleshooting drive system problems. faults, refer to Table 4-4 Troubleshooting Chart. The diagnostics information can be obtained in two 4-2.9. Programmer Diagnostics ways: With a programmer, diagnostics and troubleshooting is •...
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Table 4-3 LED Codes LED BLINKS LED BLINKS Error Message digit 1 digit 2 THERMAL FAULT THROTTLE FAULT SPEED POT FAULT UNDERVOLTAGE FAULT OVERVOLTAGE FAULT MAIN OFF FAULT (not used) MAIN FAULT MAIN ON FAULT (not used) WIRING FAULT BRAKE ON FAULT PRECHARGE FAULT Table 4-3 LED Codes- Continued LED BLINKS...
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Table 4-4 Troubleshooting Chart Error Message BLINKS BLINKS EXPLANATION Possible cause Error text digit 1 digit 2 1. Temperature >80°C or < - 10°C. Excessive load on vehicle. Over-/under-temperature THERMAL FAULT Operation in extreme environ- cutback ments. Electromagnetic brake not releasing.
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Table 4-4roubleshooting Chart - Continued Error Message BLINKS BLINKS EXPLANATION Possible cause Error text digit 1 digit 2 1. Misadjusted throttle. WIRING FAULT HPD fault present >10 sec. Broken throttle pot or throttle mechanism. 1. Electromagnetic brake driver shorted. BRAKE ON FAULT Brake On fault Electromagnetic brake coil open.
SECTION 5 STEERING ARM, CONTROL HEAD AND COMPARTMENT 5-1. CONTROL HEAD Remove four screws, lift up cap assembly and disconnect harness from harness. 5-1.1. Cap Assembly Removal. Engage the emergency stop switch and turn off key switch EF_0006 Figure 5-1 Control Head BL-GL22-1119 - 11-20-2019...
5-1.2. Cap Assembly Installation. Position cap assembly on control head and secure with four screws. Hold cap assembly in place and connect harness Disengage the emergency stop switch and turn to harness. on key switch. EF_0005 Figure 5-2 Steering Arm 5-1.3.
Remove the cap assembly as described in para- Remove screw, lock washer and flat washer and remove potentiometer from bracket. graph 5-1.1. Disconnect harness from potentiometer and Position new potentiometer in bracket and secure reversing switch. with screw, lock washer and flat washer. Remove two screws, two lock washers and two Install screw, lock washer and flat washer.
EF_0006 Figure 5-3 Emergency Reverse Switch Assembly 5-1.7. Horn Switch Replacement. Unsolder harness from defective switch and con- nect it to the new switch. Remove the cap assembly as described in para- Position the new switch in the bracket and secure graph 5-1.1.
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EF_0007 Figure 5-4 Cap Assembly BL-GL22-1119 - 11-20-2019...
5-1.8. Lift and Lower Switch Replacement. Remove the return spring as described in para- graph 5-2.1. Remove the cap assembly as described in para- Disconnect harness from harness. graph 5-1.1. Attach a hoist to steering arm. Remove switch assembly form cap. Remove screw, shaft and the steering arm.
SECTION 6 BRAKE SERVICING 6-1. BRAKES. Disconnect electric brake from harness. Remove the two mounting screws and the brake. The brake system consists of a drive motor mounted brake. This brake is spring applied and electrically Place the new brake into position and secure with released.
SECTION 7 TRANSMISSION, DRIVE WHEEL AND LOAD WHEEL 7-1. DRIVE WHEEL. Remove the compartment covers as described in paragraph 5-3. Remove the transmission as described in para- Remove the steering arm as described in para- graph 7-2. graph 5-2. Remove the two mounting screws and brake. Raise the truck off the ground to provide clear- Remove eight screws, eight lock washers and ance for transmission out the bottom.
NOTE: Inspect the load wheel assembly. If the load wheel is worn within 1/8" of the metal sleeve, or is cracked or damaged, replace the entire load wheel and bearing assembly. Global Industrial recommends that both load wheel assemblies be replaced at the same time.
SECTION 8 ELEVATION SYSTEM SERVICING 8-1. GENERAL. The elevation system includes the outer mast, inner mast, lift linkage, lift chains, lift cylinder and ram head. 8-2. LIFT CHAIN LENGTH ADJUSTMENT. Fully lower the lift carriage. Engage the emergency stop switchand turn off key switch.
8-3. LIFT CHAIN WEAR INSPECTION. Engage the emergency stop switch and turn off key switch. The lift chain should be replaced when it is worn enough to increase it’s length by 3% or more. On Tele- WARNING: Before attempting any replacement, cospic trucks, Both chains should be replaced at the make certain power is disconnected.
SECTION 9 HYDRAULIC SYSTEM SERVICING 9-1. LINES AND FITTINGS Remove the compartment covers as described in paragraph 5-3. WARNING: When forks are raised, pressure exists in Remove the windshield as described in paragraph the hydraulic system lines and fittings. To 5-4.
9-2. HYDRAULIC PUMP, MOTOR AND RESERVOIR Operate the lift and lower buttons to refill the ASSEMBLY cylinder and lines with hydraulic oil. Check level of hydraulic oil. If required, add The hydraulic pump/motor assembly can be disas- hydraulic oil to bring to proper level. Use hydraulic sembled and repaired.
9-3.2. Repair CAUTION: To prevent damage, use proper pipe clamp vise. The cylinder will be distorted if the vise is tightened too much. Secure the lift cylinder in a vise, clamping lightly at the base of the cylinder. Remove gland nut and remove wiper ring and seal from the gland nut.
SECTION 10 ELECTRICAL COMPONENTS 10-1.ELECTRICAL CONTROL PANEL Tag and disconnect harness from controller. Tag and disconnect remaining leads from the con- 10-1.1.Maintenance troller. NOTE: Erratic operation of the truck may be caused Remove mounting screws, lock washers and by defective controller components. Before remove controller and heat sink.
10-1.7.Buzzer Removal. 10-1.12.Battery Indicator Installation. Engage the emergency stop switch and turn off Position battery indicator on the bracket and key switch secure with its mounting bracket and nuts. Remove the compartment covers as described in Reconnect harness from battery indicator. paragraph 5-3.
10-1.17.Lift Limit Switch Removal. 10-3.DRIVE MOTOR. Lower forks fully. The drive motor exposed surfaces should be cleaned at least once a month to assure proper cooling of Engage the emergency stop switch and turn off motor. Use an air hose to blow dust off of motor sur- key switch.
SECTION 12 ILLUSTRATED PARTS BREAKDOWN Following is an illustrated parts breakdown of assemblies and parts associated with the 989021 Lift Truck. BL-GL22-1119 - 11-20-2019 12-1...
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STEERING SYSTEM Qty. Pos. Part Number Description Notes Reqd. 1115-340000-10-40 CONTROL POD ASSEMBLY With Wire 1127-310000-00 CONTROL HANDLE 1127-310003-00 ROLLER 1127-300101-00 SPRING 1127-300102-00 SPRING TOP ROD 1127-300103-0A SPRING BASE 1116-300001-0A SHAFT 0000-000589-00 RETAINER RING Ø16 2101-300001-00 BRACKET 1127-300002-0A BUFFER BLOCK With Wire 1125-52000Z-10 INCHING SWITCH ASSEMBLY...
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EF_0006 Figure 12-5 Control Head 12-10 BL-GL22-1119 - 11-20-2019...
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CONTROL HEAD Qty. Pos. Part Number Description Notes Reqd. With Wire 1115-341000-00-10 CAP ASSEMBLY SEE 0303 1115-34001X-00 TRAVELLING KNOB 0000-000038-00 LOCKWASHER Ø3 0000-000037-00 SCREW M3×12 0000-000991-00 FLATWASHER Ø3 1114-500007-00 POWER MODULE 1120-340004-00-01 DRIVE SWITCH 0000-000323-00 SCREW M5×16 0000-000390-00 FLATWASHER Ø5 1115-340007-00 WIRE HARNESS COVER 1120-520009-00...
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LIFT CYLINDER Qty. Pos. Part Number Description Notes Reqd. 2101-410004-01 RING BACK UP Ø45×40×15 ROD PACKING Ø45×35×6 O-RING Ø54×2.4 RING WIPER Ø32×40×5-6.5 2101-410009-00 MUFFLER 2101-QJYG-0A SEAL KIT FOR CYLINDER Incl. Pos. # 2, 3 & 4 BL-GL22-1119 - 11-20-2019 12-19...
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