The Haulotte HT132 RTJ PRO is a rugged telehandler designed for heavy lifting in construction and industrial settings. Its instrument cluster provides critical feedback to ensure safe and efficient operation. Understanding these warning lights is essential for maximizing uptime and preventing costly repairs.
Haulotte HT132 RTJ PRO Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical system fault has occurred on your HT132 RTJ PRO; stop the machine immediately and consult the fault codes. | Stop the engine, secure the machine, and check the diagnostic display for specific error codes. | |
| Hydraulic System | RED | Hydraulic oil temperature is too high or pressure is low on your HT132 RTJ PRO, risking pump damage. | Reduce load and let hydraulic system cool; check oil level and filter. | |
| Engine Oil Pressure | RED | Engine oil pressure is below safe limits for the HT132 RTJ PRO’s 4-cylinder diesel engine. | Stop engine immediately and check oil level; if full, contact service. | |
| Battery / Charging | RED | The alternator is not charging the battery properly on your HT132 RTJ PRO, electrical power is draining. | Check alternator belt and connections; drive to a safe area and call for service. | |
| Coolant Temperature | RED | Engine coolant temperature is above 105°C on the HT132 RTJ PRO, risking overheating damage. | Idle engine in neutral; check coolant level and radiator fan operation. | |
| Parking Brake | AMBER | Parking brake is engaged or has a fault on the HT132 RTJ PRO; ensure it is released before driving. | Release parking brake fully; if light stays on, inspect brake switch and wiring. | |
| Seat Belt | RED | Driver’s seat belt is not fastened on the HT132 RTJ PRO; machine operation may be restricted. | Fasten seat belt immediately; light should turn off. | |
| Glow Plug / Preheat | AMBER | Glow plugs are active for cold start on the HT132 RTJ PRO; wait for light to extinguish before cranking. | Turn key to on position and wait for the glow plug indicator to go out. | |
| Low Fuel | AMBER | Fuel level is low in the HT132 RTJ PRO; refuel soon to avoid air in the system. | Refuel with diesel as soon as possible, preferably before the gauge reads empty. | |
| High Beam | BLUE | High beam headlights are activated on the HT132 RTJ PRO for better visibility in dark areas. | Dim to low beam when oncoming traffic or other operators are present. | |
| Work Lights | GREEN | Work lights on the HT132 RTJ PRO are turned on, illuminating the work area. | Turn off when not needed to conserve battery. | |
| Beacon / Rotating Light | GREEN | The rotating beacon is active on the HT132 RTJ PRO, warning nearby personnel of machine movement. | Leave on whenever machine is in use. | |
| Swing / Slew Lock | AMBER | The swing lock is engaged on the HT132 RTJ PRO, preventing upper structure rotation during transport. | Release before operating; ensure lock pin is fully retracted. | |
| Overload / Capacity | RED | Load on the HT132 RTJ PRO exceeds rated capacity; boom and drive functions are limited. | Remove excess load immediately to restore full operation. | |
| Fasten Seat Belt | RED | Seat belt reminder is active on the HT132 RTJ PRO; machine may not operate until fastened. | Fasten seat belt securely. |
15 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Overheating
Common causes
- Low coolant level
- Clogged radiator fins
- Faulty thermostat
What to do
Stop the HT132 RTJ PRO immediately, let it cool, then check coolant level and clean the radiator with compressed air.
Hydraulic Oil Overheating
Common causes
- Continuous heavy lifting in hot conditions
- Hydraulic oil level low
- Blocked oil cooler
What to do
Reduce load and travel at lower RPM; check hydraulic oil level and clean the oil cooler core.
Overload Condition
Common causes
- Load exceeds 3.2-ton capacity
- Improperly positioned load
- Boom extended too far
What to do
Remove excess weight or reposition load closer to the chassis to stay within the HT132 RTJ PRO’s rated capacity.
Low Engine Oil Pressure
Common causes
- Low oil level
- Oil pump failure
- Worn engine bearings
What to do
Stop the engine and check oil dipstick; add oil if low. If pressure doesn't recover, tow to service center.
Brake System Failure
Common causes
- Low brake fluid
- Brake pad wear
- Air in hydraulic brake lines
What to do
Check brake fluid reservoir and top up with DOT 4; if light persists, do not operate and call a technician.
Frequently Asked Questions
What does the red hydraulic light mean on my HT132 RTJ PRO?
It indicates hydraulic oil temperature is too high or system pressure is low. Reduce load and let the machine cool; check oil level and filter.
Why won’t the engine start after the glow plug light goes out?
The glow plug preheat sequence must complete; if engine still won't start, check battery voltage and fuel supply. The HT132 RTJ PRO requires full battery power to crank.
Can I continue working with the amber parking brake light on?
No, it may mean the brake is partially applied or a fault exists. Release fully; if light stays on, have it inspected to avoid driveline damage.
How do I reset the service hour meter reminder?
The service indicator is automatically cleared after scheduled maintenance by a technician. It reminds you at 500-hour intervals for the HT132 RTJ PRO.
What should I do if the overload light comes on while lifting?
Immediately lower or remove the excess load. The HT132 RTJ PRO’s overload system disables boom functions to prevent tipping; resume operation only when safe.
Is it normal for the beacon light to flash when operating?
Yes, the rotating beacon activates automatically when the machine is in operation. It's a safety feature to alert nearby workers.