21.3 Communication, Mentoring & Shift Handover

Communication, Mentoring & Shift Handover

Communication is a technical control. A correct diagnosis can still cause injury or repeat failure when an isolation is assumed, a measurement loses its units, or the next shift cannot identify untorqued fasteners. The RSOS therefore includes workplace communication and mentoring with hands-on work.

Listen, Clarify, Confirm

Let the operator describe the event, then ask neutral questions about machine state, load, temperature, terrain, warnings, sound, smell, frequency, and recent changes. Avoid questions that suggest a preferred diagnosis. Restate the facts: “The boom drifts only when hot, with the engine stopped, and no external leak is visible. Is that correct?”

Use terms from current service information but translate jargon for other audiences. Pair a component name with its location or function. Include units, test points, and conditions. “Pilot pressure is low” is vague; “pilot supply is 1.8 MPa at high idle with oil at 55°C, against 3.5–4.0 MPa specified” is actionable.

For a critical instruction, use closed-loop communication:

1. Address the receiver and give one clear instruction.
2. The receiver repeats the instruction and critical detail.
3. The sender confirms or corrects it.
4. The receiver reports completion and result.

For machine movement, use the designated signal person and agreed signals. Any person can communicate an emergency stop. Stop when visual, radio, or signal communication is lost.

Conduct a Shift Handover

Do not rely on “still apart.” Give a direct handover when possible and use the approved record. Include:

• machine identity, location, work-order scope, and physical state;
• exact isolation/group-lock status and ownership;
• blocking, suspended parts, open lines, disabled alarms, or temporary connections;
• tests completed, readings, evidence, and parts removed;
• unfinished fasteners/adjustments, contamination controls, and installed gauges;
• parts on order, scope changes, permits, and next authorized action;
• conditions required before energizing, testing, or release.

The incoming worker obtains required personal hazardous-energy control before the outgoing worker relinquishes theirs under the site procedure. A verbal promise is never a substitute.

Meetings and Records

At a toolbox meeting, state the hazard and proposed control specifically. Ask when scope is unclear. Support a concern with a drawing, measurement, standard, or service instruction. Separate confirmed facts from estimates and proposals when reporting damage, delay, or uncertain diagnosis.

Electronic messages and photographs can become service records. Use approved channels, identify machine and work order, protect personal/customer information, and avoid public posting. Do not include blame, speculation, or invented legal conclusions.

Mentor for Demonstrated Competence

Mentoring is not merely telling someone what to do. Assess prior knowledge, then explain purpose, hazards, limits, stop conditions, and acceptance criteria. Demonstrate slowly enough to expose decisions. Let the learner practice under the supervision required by law and policy.

Use an explain–demonstrate–practice–feedback–verify cycle:

• explain system purpose and hazards;
• demonstrate tool checks, body position, cleanliness, measurement, and records;
• supervise meaningful practice without abandoning the learner to risk;
• give specific feedback about observed behaviour and consequence;
• verify by having the learner explain and perform the task in a new example.

Questions such as “What energy remains?” and “Which result would disprove this theory?” show understanding better than yes/no questions. Stop unsafe action immediately. Give normal correction respectfully and recognize good decisions specifically.

A mentor must respect authorization and competence limits. Teaching does not permit unqualified independent work. Escalate when instructions are unavailable, hazards cannot be controlled, or diagnosis exceeds available expertise. The outcome is a technician who can perform, explain, verify, and document—not someone who has merely watched once.

Prevent Common Communication Failures

Numbers require special discipline. Repeat back decimal points, units, test locations, and whether a value is minimum, maximum, or nominal. “Twenty-five” can become “two point five” over a radio; use a deliberate read-back and write it in the job record. When discussing fasteners, identify whether a value is initial torque, final torque, angle, or prevailing-torque check, and state lubricant condition if the procedure does.

Label removed components, connectors, samples, and photographs with machine and location information. A fluid sample without source, hours, date, and collection condition loses much of its diagnostic value. When language or hearing barriers exist, use approved diagrams, translation support, written values, and demonstration; never pretend agreement was achieved.

Conflict is handled with evidence and escalation, not authority alone. If an instruction contradicts the service manual or hazard control, pause, identify the conflict, and ask the responsible person to resolve it before work continues. Record the decision through the approved channel.

At the end of any important discussion, confirm ownership and timing: who will obtain the part, who controls isolation, who approves expanded scope, what test comes next, and what condition prevents release. This final summary converts conversation into coordinated work and gives the next shift an auditable starting point.