This 106-page Drott 160 RF 2 Service Manual (OEM #406012M1) breaks down the Go-Devil's Revers-O-Matic transmission, hydraulic pump circuit, sequencing boom and crowd cylinder, and the full steering system from Orbitrol actuator to selector valve. Open it up and you get hydraulic schematics showing complete fluid routing through primary and secondary valve banks, a structured troubleshooting section covering the torque converter, pump, and steering relief valve, and boom and mast removal and installation procedures. Lubrication diagrams with a grease fitting list and maintenance schedule lead the manual; brake bleeding procedures, steering linkage alignment, and wheel bearing removal round out the mechanical side. Inflate tires to 100 psi and top the engine cooling system to 22 quarts before any startup check. No more chasing hydraulic faults blind. Bookmarked by section so you jump straight to the procedure, not the index.
What's Inside This Drott 160 RF 2 Manual
| System | Pages | Key Topics |
|---|---|---|
| Lubrication Charts | 8-13 | Diagrams, Item Listing, Grease Fitting List, Maintenance Schedule |
| Mechanical Components | 14-43 | Electrical System (Battery, Alternator, Fuses, Lights, Micro Switch Adjustment, Boom Approaching Cab Warning, Steering Alignment Warning, No Start Safety) |
| Hydraulic Components | 44-106 | Diagrams and Component Listing, Maintenance, Clean Oil Saves Money |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Shaft seals replacement | Discard and replace | p. 92 |
| Relief valve spring replacement | Replace | p. 75 |
| Bronze shaft bushing replacement | Replace if necessary | p. 92 |
| Tires Inflation Pressure | 100 psi | p. 9 |
| Engine Cooling System Capacity | 22 quarts | p. 10 |
| Electrical System Voltage | 12 volt maximum | p. 14 |
| Engine Top Governed RPM | 2200 rpm | p. 18 |
| Revers-O-Matic Minimum Pressure (at 1500 rpm) | 150 psi minimum | p. 18 |
| Transmission Oil Capacity | 2 quarts | p. 22 |
| Differential Oil Capacity | 14 pints | p. 23 |
| Swing Gearbox Worm Shaft Torque | 2 ft/lb | p. 33 |
| Hydraulic System Capacity | 45 gallons | p. 49 |
Drott 160 RF 2 Common Problems This Manual Covers
Drott 160 RF 2 Go-Devil torque converter slipping and experiencing jerky starts under load p. 18
Test the Revers-O-Matic pressure as detailed on page 18. Start the engine and run it up to 1500 rpm. Verify the gauge reads a 150 psi minimum. If pressure drops below this threshold, inspect the clutch packs and pump for excessive wear.
Manual Section: Torque Converter & Revers-O-Matic Trouble ShootingSteering wheel feels excessively stiff and system overheats during continuous operation and erratic recentering p. 79
Inspect the hydraulic relief valve setting outlined on page 79. Connect a test gauge and verify the system maintains 1500 psi. If the valve fails to hold pressure, remove the assembly and replace the relief valve spring according to page 75.
Manual Section: Steering System Trouble ShootingMain lift cylinders operate with extremely slow motion and the load slowly drops p. 49
Check the main reservoir level on page 49 to ensure it holds the full 45 gallons capacity. Inspect for external leaks at the fittings. If fluid levels are correct, perform a pressure test to locate internal bypass issues in the control valves.
Manual Section: Hydraulic System General Trouble ShootingSwing motor gearbox making excessive grinding noise and experiencing severe oil leaks around the shaft p. 33
Drain the housing and inspect the worm gear assembly. When reassembling the unit, verify the swing gearbox worm shaft torque is exactly 2 ft/lb as specified on page 33. Refill the differential with 14 pints of gear lubricant according to page 23.
Manual Section: Hydraulic Motors Trouble ShootingFrequently Asked Questions
What are the torque specifications for DROTT 160RF2 hydraulic components?
Torque specifications for hydraulic components vary by type. For instance, the valve bank mounting capscrews and through-studs require a torque value of 350 inch lbs. Additionally, the manual provides a 'MAXIMUM RECOMMENDED TORQUE VALUES FOR JIC SWIVEL NUTS (37° SEAT)' chart on page 104, detailing torque values for fittings like a 7/16-20 JIC swivel nut at 9 Ft/Lbs.
How can I find the torque specifications for DROTT 160RF2?
You can find torque specifications for various bolts and JIC swivel nuts in the manual's charts. The 'TENSION DATA CHART' on page 103 provides general bolt tension data based on SAE grade and bolt size. For hydraulic fittings, refer to the 'MAXIMUM RECOMMENDED TORQUE VALUES FOR JIC SWIVEL NUTS (37° SEAT)' chart on page 104, which lists torque values by thread size and OD tube.
What are the replacement specifications for Lower seals (shaft seals)?
When replacing seals in hydraulic valves, it is recommended to use a seal kit. The manual states that the 'Seal kit consists of items 3, 6, 7, 10, 11, 18, 19. (See figure 82 and parts book).' For specific part numbers and types of seals, you should refer to Figure 82 and the dedicated parts book.
How do you fix drott 160 RF 2 Go-Devil torque converter slipping and experiencing jerky starts under load?
Test the Revers-O-Matic pressure as detailed on page 18. Start the engine and run it up to 1500 rpm. Verify the gauge reads a 150 psi minimum. If pressure drops below this threshold, inspect the clutch packs and pump for excessive wear.
How will I receive this Service Manual?
Immediate download of the complete 106-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Are there any print restrictions on this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Does this Drott 160 RF 2 manual include hydraulic schematics?
Yes, this Drott 160 RF 2 Service Manual includes hydraulic system diagrams, circuit schematics, and component specifications.
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