Description

Volvo Penta L50D, L70D Installation Manual

If you’re bolting an automatic greasing system onto a Volvo L50D or L70D wheel loader, the aftermarket instructions floating around won’t get you the right routing or the pump location. I’ve seen guys waste a full shift because they trusted a photocopied sheet that skipped the electrical diagram. This Volvo Penta L50D, L70D Installation Manual comes straight from Groeneveld – the guys who built the Twin Greasing System. It’s 39 pages of factory-level direction. No guessing where the distribution block goes or which hole to drill for the pressure switch.

What the 39 Pages Cover

Every section from the table of contents is there because it needs to be. You get the system lay-out on page 6, grease point position on page 7, grease pump installation starting page 9, electrical installation on page 10, and the full electric diagram on page 12. Distribution block installation runs from page 13 through page 28. Main line installation starts page 29, hydraulic attachment bracket is page 30, hole explanation chart on page 34, micro controller settings also on page 34, and total kit information on page 35. That’s the exact structure. If your job is adding the greasing system to a Volvo L50D or L70D, you need every one of those chapters.

Electrical Installation: Wire Colors and Pressure Switch Hookup

Page 10 walks you through the electrical installation. Page 12 gives the complete electric diagram with color codes: black BK, brown BN, red RD, yellow YE, green GN, white WH, blue BU, grey GY. The pressure switch (P) and grease pump (PS) connections are drawn out. If you get the polarity wrong or miss the relay, the system won’t prime. I’ve seen pumps burn out because someone skimped on the wiring diagram. This manual shows you exactly how the micro controller ties into the Volvo dash harness. The hole explanation chart on page 34 tells you where to drill for the pressure switch mounting – no guesswork on clearance to the hydraulic lines.

Missing any step means a tear-down later. Stick to the factory routing.

Grease Point Positions and Distribution Block Routing

The basic system covers 22 grease points for the L50D/L70D. Page 7 shows each point’s location on the loader arms, pivot pins, and steering cylinders. The distribution block installation on page 13 gives the exact bracket orientation and tube lengths. The manual even includes a symbol key: H for high-pressure hose 1/4” ID, R for protection ring, TP for tube protection hose, S for small cable tie, L tie B for large cable tie. If you’re running the main lines from the pump to the distribution block, page 29 tells you the maximum length and bend radius. Ignoring those numbers leads to chafing and leaks within 500 hours.

Micro Controller Settings and the Hole Explanation Chart

On page 34 you’ll find the micro controller settings for pump cycle time and pause interval. The hole explanation chart is right there – it maps every drill location on the Volvo chassis with diameter and depth specs. This is the kind of data you won’t find in a reprint. I’ve had to stand over a guy with a drill and a tape measure because he thought “about 8mm” was close enough. It’s not. The manual gives you the exact numbers for the hydraulic attachment bracket (page 30) if your loader has that option.

Is This Manual for the Engine or the Greasing System?

Straight talk: this is the Installation Manual for the Groeneveld automatic greasing system that fits Volvo L50D and L70D wheel loaders. It is not a factory engine repair manual for the Volvo Penta diesel. But if you’re installing the grease system on a Volvo Penta-powered loader, this document is the only authorized source for the pump, distribution block, and line routing. The Volvo Penta part numbers are listed on page 5 – basic system 7300655, adaption sets for L50C/D and L70C/D. For engine-specific data like valve clearances or injection timing, you’d need a separate manual. For the grease system installation, this is it.

If you’re also working on the transmission, check the links below for manual transmission guides – those are separate documents.

Source Validity: OEM Documentation vs Aftermarket Copies

This manual was printed by Groeneveld in February 2000 for Volvo. It carries the part number EF1743P1. The copyright page states that no part may be copied without written permission. That means any third-party scan missing the color-coded wiring diagram or the hole chart is a liability. I’ve seen “condensed” aftermarket versions leave out the micro controller settings. Don’t trust them. The 39 pages here are the full original. You get the OEM torque specs? No – it’s a grease system, so torques are for fittings and bracket bolts listed in the kit. But the specs are factory-verified, not guessed.

For related diesel engine manuals, see Volvo Penta 350-600 Installation Manual – OEM Specs for IPS Drives for larger marine installs, Volvo Penta MD5A 1975 User Manual – OEM Factory Specs for older engines, and Volvo Penta UD, Mack Trucks 2013 User Manual – Factory PTT Diagnostic Guide for diagnostic protocols. External references on Manual Transmission and Manual Transmission can help if you’re dealing with gearbox issues.

How many grease points are covered in this manual?

22 grease points for the basic system on L50D/L70D.

What is the difference between the adaption sets 7300610 and 7300611?

Adaption set 7300610 fits the Volvo L50 C/D, while 7300611 fits the L70 C/D. Both include the brackets and hardware needed to mount the grease pump on the specific loader model. The hydraulic attachment bracket kits (7300587 for L50, 7300601 for L70) are separate and add two extra grease points. Page 5 of the manual lists these part numbers along with the base system 7300655. If you order the wrong adaption set, the pump mounting holes won’t align with the factory frame. Verify your loader model before buying.

This manual doesn’t leave room for interpretation. If you’re installing a Groeneveld automatic greasing system on a Volvo L50D or L70D wheel loader, this is the document that gets it done right. Access the Factory Manual today.