SQ5ZA3 Red Knuckle Crane on a Light Truck in Indonesia

A 5 t SQ5ZA3 knuckle boom crane painted red to match a red light truck: two photos and a short video from our customer in Indonesia show it being fitted to the bare chassis, the finished truck at night, and the crane slewing a large truck wheel in a workshop.

At a glance: SQ5ZA3 5 t knuckle boom crane · Indonesia · behind-cab on a red light truck · 2 customer photos and 1 video.

From bare chassis to first lift

• Fitting. In a steel-framed workshop the crane stands folded upright behind the cab of a red truck whose frame is still bare. The outrigger leg is down on a block, and the control valve bank sits on the side of the crane base.
• Finished truck. A night photo shows the same truck with a dropside body fitted, the crane folded behind the cab and the SQ5Z marking on the boom.
• Lifting a wheel. The 45-second video shows the crane unfolded with a large off-road truck wheel hanging from the hook on a rope sling. The crane lifts it, swings it across in front of the cab and lowers it while workers watch. A dump truck with its body raised stands behind.

These are the customer's own photos and video. No lift weights, dates or comments came with them.

SQ5ZA3 specifications

The SQ5ZA3 is a 5 t knuckle boom truck-mounted crane with a maximum lifting moment of 10.5 t·m and three boom sections. All figures below are read from the technical department's dimension and load chart drawings.

Lifting moment is the load times its distance from the slewing centre. That is why the rated load drops as the boom reaches out. For example, the SQ5ZA3 lifts 5,000 kg at 2.1 m but only 1,100 kg at 8.05 m. Outrigger span is the width between the outrigger feet when they are fully out. Set them on firm, level ground, such as concrete or compacted gravel, before each lift. For ground and outrigger rules, see the OSHA cranes and derricks standard.

The full 5,000 kg is rated at 2.1 m. At 4.45 m it is 2,350 kg, and at the full 8.05 m reach it is 1,100 kg. The wheel in the video stays within a few metres of the column.

The SQ5ZA3 product page has the dimension drawing and the full specification. A smaller knuckle crane on a light truck is in our SQ4ZA3 delivery record from Australia.

A 5 t knuckle crane on a light truck

A knuckle crane folds into a compact package behind the cab, which leaves most of a light truck's frame free for the body. Three figures from the drawing to check before building one:

1. Weight on the front axle. The crane weighs 2,286 kg, and nearly all of it sits right behind the cab. Add the subframe and oil, then check the front-axle rating.
2. Installation space. The SQ5ZA3 needs 1,050 mm behind the cab, which comes off the body length.
3. Hydraulics. The crane is specified for 35 L/min at 28 MPa, about 22 kW, with a 100 L oil tank.

The outriggers span 2,272 to 5,122 mm. Set them out on firm ground before unfolding the boom, as in the video, and lift heavy wheels on a sling rated for the load. How we fit cranes to customer chassis is on the mounting and shipping page, and other capacities are in the knuckle boom truck mounted crane range.

Checking a truck for the SQ5ZA3

Before you order, check three things on your truck. They decide whether the SQ5ZA3 fits it.

• Payload. The crane weighs 2,286 kg. Take this off the truck's payload, then plan the body and the loads you carry with what is left.
• Hydraulic power. The crane needs 35 L/min at 28 MPa, about 22 kW. The power take-off and pump on your truck must give at least this.
• Outrigger room. The outriggers span 2,272 to 5,122 mm. Make sure the frame has room for them, and that your job sites do too.

Send us the make, model and wheelbase of your truck through the contact page, and our team will check the fit.

Record compiled by Achord Chan, Product Operations Director at BOB-LIFT, from the customer's photos and video and the technical department's drawings.