Model 6210 Maintenance Manual

Section 4.Scheduled Maintenance

Every 180 Days or 500 Deadman Hours (HD)

Perform the following maintenance tasks every 180 days or 500 HD, whichever comes first.

Component Task

Hydraulic HosesInspect all hydraulic hoses for leaks, nicks, cuts, chafing, and bulges. Replace damaged hoses as soon as possible. Inspect all fittings for leaks. Repair any leaks immediately.

Hydraulic ReservoirCheck fluid level. See “Lubrication Equivalency Chart” on pageA-2 Add fluid if necessary.

Lift Chains Check adjustment. Inspect for excessive stretch or wear (tool P/N950-350/CG) Lubricate. See “Chain Maintenance” on page4-8

Lubrication Lubricate all grease points. Lubricate the load wheels. Lubricate all pivoting shafts on the control arm with spray lube. Lubricate fork positioning locks.

Mast Examine mast bearings. Inspect rails for abnormal wear, metal flakes, or shavings. Wipe old grease off mast uprights and apply new grease.

Motors AC (traction) - Check the cable lugs to make sure they are tight to the terminal studs. The outside nut should be torqued to the values listed on page7-61. Replace any cable that shows signs of excessive heat. Check sensor wires for sound connection and condition.

DC (lift) - Visually inspect brushes for excessive heat (discoloration of the pigtails). If excessive heat is evident, inspect the armature circuit for loose connections. Check condition of commutator per photos on page5-5. Find the shortest brush in the holder. Remove the brush and check overall dimension as per the chart on page7-60 . Inspect the brush for even wear over the full surface of the brush. If the brush is not contacting the complete surface, replace the brushes. Inspect the brush rigging for damage or loose brush holders. Make sure that the connections on the brush leads are tight. Check brush spring tension per the chart on page7-60 . Blow out the inside of the motor with compressed air. Check the cable lugs to make sure they are tight to the terminal studs. Both the inside and outside nut should be torqued to the values listed on page7-61 . Replace any cable that shows signs of excessive heat. See “DC Motors, General” on page7-59 .

Shorts to FrameCheck for electrical shorts to frame. See “Shorts to Frame Test” on page5-2 . Wipe down the inside of the compartment.

Switches Check all switches for correct operation and adjust as needed.

Ventilation SlotsMake sure ventilation slots in the tractor grille cover are clear of obstructions and debris.

Warning DecalsReplace any unreadable or damaged decals.

Wheels and TiresExamine for bond failure, chunking, and excessive or uneven wear. Inspect load wheel bearings for binding or excessive play.

Publication: 1146947, Revised: 12 Jan 2017

Every 360 Days or 2000 Deadman Hours (HD)

Every 360 Days or 2000 Deadman Hours (HD)

Perform all 180 day/500 deadman hour maintenance tasks plus the following every 360 days/2000HD.

Component Task

Drive UnitChange fluid. Clean magnet on drain plug. See “Lubrication Equivalency Chart” on pageA-2

Hydraulic ReservoirChange hydraulic fluid. See “Lubrication Equivalency Chart” on pageA-2 Clean filter screen and magnet. See “Filter Screen” on page7-77.

Lubrication Points

Grease Fittings

Figure 4-1.Load Wheel Axle

Section

Chain Maintenance

Inspection

Make sure chains are not damaged. Check the chain for wear using a Chain Gauge (P/N939-10606). Replace chains when necessary with genuine Raymond spare parts.

Condition-Cause Chart

Condition Cause Maintenance Procedure

Chain ElongationWearUse a chain gauge or lay the chain on a flat surface and push it together. Measure and mark a 12 in. (305 mm) length that has operated over the pulley sheave. Stretch the chain; if more than 5/16 in. (8 mm) play is detected, replace the chain.

Rust and CorrosionSteam cleaning or degreasing new truck chains.

Lubricate chain frequently.

Cracked PlatesInfrequent OilingReplace the chain.

Rust

Corrosion

Chain Fatigue

Tight Joints

Bent pins or platesReplace the chain.

Rusty joints or peened plate edges Replace the chain.

Chain Side WearChain misalignmentRealign the chain.

Chain Adjustment

See procedure in component procedures section.

Chain Maintenance 4-8Publication: